> ## Documentation Index
> Fetch the complete documentation index at: https://www.finta.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Grant integration access

> Records that the user has invited Finta as a user in the provider's own app, for a
`grant_access` connection method whose `connect_via` is `provider_app` in
`GET /integrations`. Finta can't see the invite, so it relies on this. Call it only
once the user says the invite is sent.

Granting access also closes the Finta inbox item that asked for it, such as Mercury
Treasury's or Ramp Checking's `grant_access` item. Calling it again once access is
granted changes nothing and returns the same integration.

Carta and Pulley also need `url`, the company's page at the provider, such as
`https://app.carta.com/corporations/12345` or `https://pulley.com/companies/1234`.
Finta then checks the invite in the background (for Carta from that page, for Pulley
once Pulley's invite email arrives), and the integration's `status` is `connecting`
until it has. Other integrations reject `url`.

For Gusto and Rippling, granting access connects the payroll integration: its `status`
and its `grant_access` method read `connected`, and Finta's team is told to review it.

Any other integration, or Mercury and Ramp while Finta isn't asking for access, returns
`400` `integration_not_grantable`.




## OpenAPI

````yaml /openapi.yaml post /integrations/{key}/grant_access
openapi: 3.0.3
info:
  title: Finta API
  version: '1.0'
  description: >
    The Finta API provides programmatic access to your company's financial data,

    including transactions, journal entries, categories, financial reports,
    sheets, and the team directory.


    ## Authentication


    Each API key is scoped to a single company. There is no company ID
    parameter.

    The key already knows which company it belongs to. If you have access to
    multiple

    companies, create a separate key for each.


    A key acts as its owner; it does not have a separate permission snapshot.
    The owner

    must currently have **API access: Manage**, plus the permission required by
    the endpoint:


    | Endpoint | Required permission |

    |----------|---------------------|

    | `GET /sheets`, `GET /sheets/{id}`, `GET /sheets/{id}/cells` | Forecast:
    View |

    | `POST /sheets`, `PATCH /sheets/{id}`, `DELETE /sheets/{id}` | Forecast:
    Manage; existing sheet entitlements apply |

    | `GET /company` | Company: View |

    | `GET /onboarding`, `PATCH /onboarding` | Company: Manage and Integrations:
    Manage, as onboarding needs in the web app |

    | `GET /taxes`, `GET /taxes/{id}` | Taxes: View |

    | `POST /files`, `POST /file_uploads` | Depends on `purpose`: Taxes: Manage
    for `tax_document` (the default), Reconciliation: Manage for
    `bank_statement` |

    | `POST /taxes/income_uploads`, `POST /taxes/franchise_uploads` | Taxes:
    Manage |

    | `GET /team` | Team & access: View |

    | `DELETE /team/invitations/{id}` | Team & access: Manage; target-management
    limits apply. No additional Growth/RBAC gate. |

    | `POST /team/invitations/{id}/resend` | Admin role required. No additional
    Growth/RBAC gate. |

    | `PATCH /team/invitations/{id}` | Team & access: Manage; RBAC and
    active/trialing Growth required, with grant and target limits. |

    | `POST /team/invitations` | Admin role required; requested access must also
    be allowed by the plan. |

    | `GET /categories`, `GET /departments`, `GET /rules`, `GET /rules/{id}` |
    Accounting setup: View |

    | `GET /tags` | Accounting setup: View |

    | `POST /tags`, `PATCH /tags/{id}`, `DELETE /tags/{id}` | Accounting setup:
    Manage |

    | `POST /categories` | Accounting setup: Manage; some templates also need
    the Startup plan, and some only Finta adds |

    | `POST /rules` | Accounting setup: Manage; applying to existing
    transactions (`apply_to_existing_transactions`, default true) also requires
    Transactions: Manage |

    | `PATCH /rules/{id}` | Accounting setup: Manage; Transactions: Manage is
    not required |

    | `DELETE /rules/{id}` | Accounting setup: Manage and Transactions: Manage,
    including absent retries |

    | `GET /integrations` | Integrations: View |

    | `GET /tax_credits`, `GET /tax_credits/{id}` | Taxes: View |

    | `GET /reports/*`, `POST /reports/exports` | Reports: View |

    | `GET /metrics`, `GET /metric_values` | Reports: View |

    | `GET /accounts`, `GET /cards`, `GET /transactions`, `GET
    /transactions/{id}`, `GET /transactions/splits`, `GET /spreads` |
    Transactions: View |

    | `GET /forms/1099`, `GET /forms/1099/{id}` | Taxes: View |

    | `POST /transactions/bulk/update`, `GET /jobs/{id}` | Transactions: Manage
    |

    | `PATCH /transactions/{id}`, `POST /transactions/{id}/split`, `PATCH
    /transactions/{id}/split`, `DELETE /transactions/{id}/split`, `POST
    /accounts`, `POST /transaction_uploads`, `POST /transfers`, `DELETE
    /transfers/{id}` | Transactions: Manage |

    | `GET /journal_entries`, `GET /journal_entries/{id}`, `GET
    /aggregations/total`, `GET /aggregations/totals`, `GET /parties/merchants` |
    Reports: View |

    | `GET /invoices`, `GET /invoices/{id}` | Invoices: View |

    | `POST /invoices`, `POST /invoices/{id}/void` | Invoices: Manage |

    | `POST /invoices/{id}/match`, `POST /invoices/{id}/unmatch`, `POST
    /transactions/{id}/match_invoices` | Invoices: Manage and Transactions:
    Manage |

    | `GET /reconciliations`, `GET /reconciliations/{id}` | Reconciliation: View
    |

    | `POST /reconciliations/{id}/reconcile`, `POST
    /reconciliations/{id}/unreconcile` | Reconciliation: Manage |


    Permission changes apply to the next request. Removing API access
    permanently revokes

    the owner's active keys for that company; restoring access requires creating
    a new key.


    Authenticate by including your API key in the `Authorization` header:


    ```

    Authorization: Bearer finta_...

    ```


    ### Key prefix convention


    Every Finta credential is prefixed so it can be recognized at a glance in
    logs, error messages, and secret scanners. Today there is one credential
    type and its prefix is `finta_`. As additional credential or token types are
    introduced (for example restricted keys or webhook signing secrets), each
    will have its own distinct prefix that stacks on the brand prefix (e.g.
    `finta_<type>_...`). Treat the prefix as load-bearing: do not strip it
    before sending, and do not assume a missing or unknown prefix is still a
    Finta credential.


    ## Onboarding


    A company starts using Finta by onboarding: it answers a short
    questionnaire, Finta decides

    whether it can take the company on, the company connects the banks and cards
    it selected, and

    Finta syncs them for the first time. Until the company is onboarded, every
    endpoint returns

    `403 Forbidden` with `type: permission_error` and `code:
    onboarding_incomplete`, except these:


    | Endpoint | Why |

    |----------|-----|

    | `GET /onboarding`, `PATCH /onboarding` | Onboarding itself |

    | `GET /integrations` | To see the banks and cards to connect |

    | `POST /integrations/{key}/connect`, `GET /integrations/{key}/connect` | To
    connect them, only once Finta has approved the company (`onboarding_status`
    `connect_banks` or `syncing`) |

    | `POST /team/invitations` | To invite the teammate who can approve a
    connection, such as a Brex account admin |

    | `POST /feedback` | To write to Finta support |


    The error's `onboarding_status` says where the company is (the `status` of
    `GET /onboarding`):


    ```json

    {
      "error": {
        "type": "permission_error",
        "code": "onboarding_incomplete",
        "message": "This company hasn’t finished onboarding with Finta, so this endpoint isn’t available yet. Call GET /api/v1/onboarding and follow its next_step.",
        "doc_url": "https://www.finta.com/docs/api-reference/errors#onboarding_incomplete",
        "onboarding_status": "connect_banks"
      }
    }

    ```


    Call `GET /onboarding` and follow its `next_step` until its `status` is
    `complete`. A company

    Finta needs a call with (`call_required`) or can't onboard (`not_eligible`)
    stays here, as it

    does in the web app. Nothing counts toward the monthly limit until the
    company is onboarded.


    Connecting banks is part of onboarding, but only after Finta approves the
    company, as in the

    web app: a bank connected earlier would sync outside onboarding, and
    onboarding's first sync

    would never start. Before approval, both connect endpoints return
    `onboarding_incomplete`

    with a message to finish the questionnaire first. `GET /integrations`
    answers throughout.


    ## Rate Limits


    The API enforces two independent limits. Both surface as `429 Too Many
    Requests`, but they are distinct error codes with different retry guidance.


    ### Per-minute burst limit


    Authenticated requests are limited to **6,000 requests per 60 seconds** (100
    per second) per API key, or per Finta CLI login. Unauthenticated requests
    (missing or invalid key) are limited to **120 requests per 60 seconds** per
    IP address.


    The window is **fixed**, not rolling. Each 60-second wall-clock interval is
    its own counter; all requests within that interval share it, and the counter
    resets to 0 in a single step at the next boundary. Available budget jumps
    from `0` back to the full bucket size (`6000` for authenticated API keys,
    `120` for unauthenticated IP buckets) instantaneously at the boundary,
    rather than aging out one slot at a time. Trust `X-RateLimit-Reset` for the
    exact reset timestamp.


    Successful responses and burst-limit rejections include the following
    headers.

    Do not assume they are present on other errors: early authentication,
    authorization,

    and monthly-limit rejections can omit them. This describes existing header
    behavior,

    not a new quota policy.


    | Header | Description |

    |--------|-------------|

    | `X-RateLimit-Limit` | Maximum requests per window (`6000` for
    authenticated requests, `120` for unauthenticated). |

    | `X-RateLimit-Remaining` | Requests remaining in the current window. |

    | `X-RateLimit-Reset` | Unix timestamp when the window resets. |


    On a 429 for this case, an additional header is included:


    | Header | Description |

    |--------|-------------|

    | `Retry-After` | Number of seconds until the next request is safe. |


    The error body is `type: rate_limit_error` / `code: rate_limit_exceeded`.


    **Retry guidance:** This case is retryable. Honor `Retry-After` as the
    minimum wait, then apply exponential backoff with jitter for any retries
    beyond the first (cap at a few minutes; abandon after a small number of
    attempts to avoid retry storms). Do not retry tighter than `Retry-After`.


    ### Monthly per-company limit


    Each company has a monthly cap on total API calls, independent of the
    per-minute burst:


    | Plan | Monthly cap |

    |------|-------------|

    | Formation | 10 |

    | Startup | 300 |

    | Growth | 30,000 |

    | Enterprise | Unlimited |


    Enterprise is enabled internally by Finta for contract-managed companies. It
    bypasses

    commercial monthly API/MCP quotas and ordinary subscription lockouts, even
    when the

    Stripe subscription is absent or canceled. Requests and MCP tool calls are
    still counted.

    Enterprise does not bypass valid credentials, company/user permissions,
    company closure,

    request validation, payload bounds, or per-minute abuse limits. Disabling
    Enterprise restores

    ordinary plan gates using the current billing state; it does not change
    Stripe billing.


    Nothing counts until the company finishes onboarding, and `GET /onboarding`
    and `PATCH /onboarding`

    never count.


    Counts reset at **midnight Pacific Time (US & Canada)** on the 1st of each
    month. This is the Finta application's configured time zone; the cap is
    computed in that zone, not in UTC. Consumers in other time zones should
    convert the local-midnight Pacific boundary to their own clock; note that
    the absolute UTC offset shifts by one hour twice a year for daylight saving
    (PST is UTC-8, PDT is UTC-7). Blocked requests are not counted toward the
    limit. The error body is `type: limit_error` / `code:
    monthly_limit_exceeded`, and the `message` field includes the reset date in
    human-readable form.


    **Retry guidance:** This case is **not retryable in the short term.** No
    `Retry-After` header is sent, deliberately, because the only meaningful
    remediation is to upgrade the plan (Settings -> Plans at app.finta.com) or
    wait until the 1st of the next month. Naive retry loops should branch on
    `error.code` and stop retrying when they see `monthly_limit_exceeded`. SDKs
    that auto-retry on 429 should look at `error.code` (or the absence of
    `Retry-After`) before re-issuing.


    A temporary company limit override, set by Finta support for the current
    month, may change

    the allowance and the wording of the monthly-limit message. It applies to
    every user and

    API key in the company. The error code and no-short-term-retry rule remain
    unchanged.


    ## Pagination


    List endpoints use cursor-based pagination. Pass `limit` to control page
    size

    (default 100, max 500). To fetch the next page, pass `starting_after` with
    the

    `next_cursor` value from the previous response. Responses include `object:
    "list"`,

    `url` (the canonical path of the collection, relative to the API host),
    `has_more`

    (whether more results exist), `next_cursor` (an opaque value to pass
    unchanged as `starting_after`),

    and `data` (the page of items).


    ## Reporting dates and freshness


    Reports and category totals use calendar dates in **America/Los_Angeles
    (Pacific Time)**,

    including defaults such as today and the current quarter. Periodic requests
    include both

    `start_date` and `end_date` exactly. Point-in-time requests include activity
    through the

    exact `date`. Response dates identify the boundaries actually used, not
    rounded months.


    Whole months read whole-month rollups. The current month's first day through
    today in

    Pacific Time reads month-to-date (MTD) rollups when fresh. Other
    partial-month boundaries,

    including a midmonth start, read raw journal entries for just those partial
    months and are

    slower; any whole months in the same request still use rollups. Stale or
    unfilled MTD

    rollups safely fall back to raw entries. Whole-month requests and
    month-aligned

    month-start-to-today or year-to-date requests stay on the fast rollup path
    when MTD is fresh.


    Fresh MTD must end at exactly the requested cutoff. If a refresh advances
    the rollup

    across Pacific midnight during a request, exact live entries preserve the
    original

    cutoff; later-day MTD is never included in that answer.


    `refreshed_at` is a Unix timestamp covering the entire report, total, or
    grouped page,

    including partial months. For rollup-only reads it is the maximum
    contributing rollup

    timestamp, including MTD. Any live raw-entry portion is current as of the
    call, even when

    no raw entries match. A fresh MTD row contributes its timestamp even when it
    contains zero

    activity through today; future-only merchants do not appear as empty
    merchant groups.

    A grouped page covers its returned groups; a later month's refresh does not
    advance an

    earlier monthly page's timestamp.

    It is null only when no contributing timestamp or live raw read is

    available. Rollup-backed activity may lag newly imported or edited entries.


    ## Amounts


    Financial resource fields follow these two rules. Generic spreadsheet cell
    arrays are

    a scoped exception, described below:


    1. **Integer cents.** Monetary values are integers, never floats and never
    formatted strings. `$499.00` is `49900`. `$1,500.00` is `150000`. Divide by
    100 to get dollars. This avoids floating-point precision errors in financial
    calculations.

    2. **`_cents` suffix.** The field name always ends in `_cents` (e.g.
    `amount_cents`, `balance_cents`, `total_cents`, `net_income_cents`,
    `change_in_cash_cents`, `cash_cents`). If a field name does not end in
    `_cents`, it is not a monetary value.


    These rules apply to monetary resource fields (transactions, journal
    entries, income statement,

    balance sheet, cash flow). There is no "summary" or "display" sibling field
    that returns

    the same financial-resource amount in dollars or as a string.


    **Spreadsheet exception:** `/sheets` range `values` are generic spreadsheet
    cells, not

    financial-resource amount fields. They preserve the existing sheet engine's
    units: for

    example, a sheet amount of $20,000 is entered as `20000`, not `2000000`.
    Formatting does

    not trigger a cents conversion. Formula results use the existing spreadsheet
    evaluator

    and FINTA behavior. Do not apply the financial-resource cents convention to
    cell arrays.


    Sign conventions:


    - **Income statement**: revenue/income amounts are positive, expense amounts
    are negative. Summing every section's `total_cents` yields net income
    without sign-flipping.

    - **Balance sheet**: `balance_cents` carries the natural-sign cumulative
    balance for that account at the report date.

    - **Cash flow**: `amount_cents` is positive for cash inflows and negative
    for cash outflows.


    ## Errors


    Errors return a consistent JSON structure:


    ```json

    {
      "error": {
        "type": "invalid_request_error",
        "code": "resource_missing",
        "message": "The requested resource was not found.",
        "doc_url": "https://www.finta.com/docs/api-reference/errors#resource_missing"
      }
    }

    ```


    ### Status codes


    | Status | Meaning |

    |--------|---------|

    | `200 OK` | Request succeeded. |

    | `201 Created` | A new resource was created, such as an invitation, an
    account, or a transaction upload draft. |

    | `400 Bad Request` | Request was malformed or had invalid parameters. |

    | `401 Unauthorized` | The bearer credential is missing, malformed, or
    unrecognized. The fix is to obtain a valid API key (`invalid_api_key`), or,
    for a Finta CLI login (`invalid_token`), to sign in again with `finta
    login`. |

    | `403 Forbidden` | The API key is valid, but the caller does not have
    permission to access the resource. The fix is to regain the required company
    or product-area access. See the `Forbidden` response component for the
    specific codes. |

    | `404 Not Found` | The requested resource, or the endpoint itself, does not
    exist. Unknown or renamed paths (for example an old hyphenated report path
    like `/reports/income-statement` instead of `/reports/income_statement`)
    return this same envelope with `type: invalid_request_error` and `code:
    resource_missing`, as JSON, regardless of the `Accept` header. |

    | `409 Conflict` | The request conflicts with the resource's current state,
    for example changing an onboarding answer after Finta decided. |

    | `422 Unprocessable Entity` | Invitation data failed validation, for
    example an invalid email or a conflicting invitation or existing teammate. |

    | `429 Too Many Requests` | Either the per-minute burst rate limit
    (retryable, with `Retry-After`) or the monthly per-company API call limit
    (not retryable in the short term, no `Retry-After`). Branch on `error.code`
    to distinguish the two and avoid retry storms on monthly exhaustion. See the
    Rate Limits section for the full retry guidance. |

    | `5xx` | An unexpected error on Finta's side. Retry with exponential
    backoff. |


    The `error.type` and `error.code` fields are stable identifiers safe to
    switch on programmatically. The `error.message` is human-readable and may
    change without notice.


    ### Overdue billing invoices


    A company with an unpaid billing invoice explicitly linked by Finta loses
    access when

    that invoice's due date ends in America/Los_Angeles, independently of its
    subscription

    or plan. Every API endpoint then returns `403 permission_error` with code

    `invoice_overdue`, before running the endpoint or changing data. Pay all
    overdue linked

    invoices at app.finta.com or contact support@finta.com; replacing the API
    key or buying

    another plan does not resolve this refusal. There is no payment-processing
    grace period:

    payment must have settled and Stripe must mark each overdue invoice paid. A
    linked invoice only

    counts while its corresponding Enterprise product is enabled.


    Unpaid status can be cached for up to 60 seconds. Access returns
    automatically within

    a minute after every overdue linked invoice is paid. Paid status is final.
    Companies with no

    linked invoices do not perform this payment-status check.

    Amounts in the human-readable message reflect the unsettled balance after
    partial

    payments. Whole-dollar amounts omit decimal places; non-zero cents remain
    exact.

    Only invoice status paid clears an overdue invoice.

    The lock is not latched: when an overdue invoice is paid and the only
    remaining

    unpaid invoice is not due yet, access resumes until that later invoice
    misses its cutoff.


    If payment status cannot be verified after the due-date cutoff, every
    endpoint can

    instead return `503 api_error` with code `invoice_status_unavailable` and

    `Retry-After: 60`. Retry after that interval, then use bounded exponential
    backoff if

    the service remains unavailable. This response never treats an unknown
    payment as paid.

    A Stripe outage before the cutoff does not refuse access for this reason.


    MCP connections remain connected, but every tool call is refused for these
    same

    reasons, including tools that normally do not consume the monthly allowance.
    A refused

    tool result has `isError: true`, uses the API's message, and is not counted
    against the

    monthly allowance. Its transport remains HTTP 200; a temporary
    payment-status failure

    includes `Retry-After: 60` on that response.


    ### Early access endpoints


    Some features are in early access: turned on per company while they roll
    out. A feature can be

    whole endpoints, such as invoices, or inputs on endpoints everyone uses,
    such as a department

    filter or a department to set or clear. For a company that doesn't have the
    feature yet, every

    request to its endpoints, and every request that sends one of its inputs,
    returns

    `403 Forbidden` with `type: permission_error` and `code: feature_disabled`,
    and changes nothing:


    ```json

    {
      "error": {
        "type": "permission_error",
        "code": "feature_disabled",
        "message": "This feature isn’t turned on for this company yet. Contact Finta to request access.",
        "doc_url": "https://www.finta.com/docs/api-reference/errors#feature_disabled"
      }
    }

    ```


    It is not retryable: contact Finta to request access for the company, then
    retry. Once

    the feature is on for the company, the same requests work normally.


    If the plan doesn't include departments, a request that names one gets

    `plan_upgrade_required` instead. Department reports always get
    `feature_disabled`.
servers:
  - url: https://app.finta.com/api/v1
    description: Production
security:
  - bearerAuth: []
tags:
  - name: Onboarding
    description: Create a Finta account through an agent and verify the user's email
  - name: Sheets
    description: >
      Create, read, edit and delete spreadsheet documents, worksheets, cell
      ranges and embedded charts.

      Existing Sheets access includes tag-filtered financial formulas, including
      Other, without

      separate Dashboard, Transactions or Accounting settings access. API calls
      still require

      API access: Manage; reads require Forecast: View and mutations require
      Forecast: Manage,

      with existing company, subscription and financial authorization checks.

      Existing web link sharing requires Forecast: Manage and the existing
      sharing entitlement;

      the sharing owner's current access and revocation checks remain
      authoritative. Guests

      can evaluate authorized saved formulas, not arbitrary financial queries or
      the full tag

      catalog. This adds no public sharing or tag-management endpoint.
  - name: Onboarding
    description: >-
      Answer the onboarding questionnaire, follow Finta's decision, and connect
      the company's banks until it's onboarded
  - name: Company
    description: Retrieve company metadata
  - name: Plans & billing
    description: >-
      The plans Finta offers, what the company pays, and how much of each plan
      limit it has used.
  - name: Team
    description: Retrieve company members and manage invitations
  - name: Categories
    description: List your chart of accounts categories and add Finta's standard ones
  - name: Rules
    description: Company automation rule definitions.
  - name: Departments
    description: List the departments available to the authenticated company
  - name: Tags
    description: >-
      Company-defined transaction labels managed in Settings that break
      categories down further, such as Vercel and Webshare under Infrastructure.
      Each transaction has at most one tag; untagged amounts appear as Other.
      Tags do not change the books, taxes or reports.
  - name: Integrations
    description: List the authenticated company's integrations and their connection status
  - name: Inbox
    description: >-
      What Finta needs from the company, from its Finta inbox, and how each item
      gets done
  - name: Aggregations
    description: >-
      Compute totals for one category and its descendants, as a single figure or
      grouped by merchant or month
  - name: Transactions
    description: >
      Transactions are what your bank shows you: a single line like "AWS charged
      you $499."

      Most API consumers want transactions. For accounting-level detail, see
      Journal Entries.


      Amounts are in cents (e.g. `amount_cents: 49900` = $499.00).
  - name: Journal Entries
    description: >
      Journal entries are the accounting records that transactions create. A
      single $499 AWS

      charge becomes two journal entries: debit Software $499, credit Cash $499
      (double-entry

      bookkeeping). Use journal entries when you need accounting-level detail.


      Amounts are in cents (e.g. `amount_cents: 49900` = $499.00).
  - name: Invoices
    description: >
      Invoices the company sent, and the bank deposits that paid them. Recording
      an invoice books

      its revenue; Finta doesn't send invoices to customers.


      Amounts are in cents (e.g. `amount_cents: 49900` = $499.00).
  - name: Reconciliation
    description: >
      Reconciling an account's period confirms Finta's balance matches the
      statement's ending

      balance, and locks the period's transactions. Each account has one
      reconciliation per

      period (the calendar month, or the bank statement's dates for
      statement-dated accounts),

      whether or not it's reconciled yet.


      Amounts are in cents in the statement's terms: a credit card's balance
      owed is positive.
  - name: Parties
    description: Discover observed counterparties for category-scoped financial queries.
  - name: Forms
    description: Discover vendor compliance filing records and yearly progress.
  - name: Reports
    description: >
      Financial statements: income statement, balance sheet, and cash flow. Each
      report

      returns the complete statement for a single period. You cannot filter to
      one category

      or request multiple periods in one call.
  - name: Metrics
    description: >
      Key metrics month by month, such as cash, runway, revenue growth, gross
      margin and net

      income. Each metric is either point in time, read on a date, or over a
      period.
  - name: Feedback
    description: Send questions, feedback and bug reports to Finta support
  - name: Tax Credits
    description: Credit amounts and claim progress by type, jurisdiction, and tax year
  - name: Taxes
    description: >-
      Discover income-tax and Delaware franchise-tax filing records and
      available PDFs.
  - name: Files
    description: Upload the PDFs that tax uploads attach to the company's tax records.
paths:
  /integrations/{key}/grant_access:
    post:
      tags:
        - Integrations
      summary: Grant integration access
      description: >
        Records that the user has invited Finta as a user in the provider's own
        app, for a

        `grant_access` connection method whose `connect_via` is `provider_app`
        in

        `GET /integrations`. Finta can't see the invite, so it relies on this.
        Call it only

        once the user says the invite is sent.


        Granting access also closes the Finta inbox item that asked for it, such
        as Mercury

        Treasury's or Ramp Checking's `grant_access` item. Calling it again once
        access is

        granted changes nothing and returns the same integration.


        Carta and Pulley also need `url`, the company's page at the provider,
        such as

        `https://app.carta.com/corporations/12345` or
        `https://pulley.com/companies/1234`.

        Finta then checks the invite in the background (for Carta from that
        page, for Pulley

        once Pulley's invite email arrives), and the integration's `status` is
        `connecting`

        until it has. Other integrations reject `url`.


        For Gusto and Rippling, granting access connects the payroll
        integration: its `status`

        and its `grant_access` method read `connected`, and Finta's team is told
        to review it.


        Any other integration, or Mercury and Ramp while Finta isn't asking for
        access, returns

        `400` `integration_not_grantable`.
      operationId: grantIntegrationAccess
      parameters:
        - $ref: '#/components/parameters/IntegrationKey'
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              additionalProperties: false
              properties:
                url:
                  type: string
                  description: >-
                    Carta and Pulley only, and required for them: the company's
                    page URL at the provider, or just its numeric ID there.
                  example: https://app.carta.com/corporations/12345
            example:
              url: https://app.carta.com/corporations/12345
      responses:
        '200':
          description: >-
            The integration, as `GET /integrations` lists it, with its
            `grant_access` method `granted` (`connecting` for Carta and Pulley,
            `connected` for Gusto and Rippling).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Integration'
              example:
                key: ramp
                object: integration
                name: Ramp
                type: banking
                status: connected
                connection_methods:
                  - type: oauth
                    status: connected
                    connect_via: api
                  - type: grant_access
                    status: granted
                    connect_via: provider_app
                quality: great
                signup_referral: null
        '400':
          description: >-
            Finta isn't asking for access to this integration
            (integration_not_grantable), or `url` is missing or unreadable for
            Carta or Pulley, or passed for another integration (invalid_request,
            param url).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          description: >-
            Existing API access checks failed, or the key owner lacks the
            Integrations: Manage permission (insufficient_permission).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: >-
            No integration with this key is available to the company
            (resource_missing).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '409':
          description: >-
            For Carta or Pulley: that account is already connected to another
            company, or this company already has a different one
            (integration_already_connected).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          $ref: '#/components/responses/RateLimited'
        '500':
          description: >-
            Access could not be recorded (access_grant_failed). Retry with
            exponential backoff.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '503':
          $ref: '#/components/responses/InvoiceStatusUnavailable'
components:
  parameters:
    IntegrationKey:
      name: key
      in: path
      required: true
      description: The integration's `key` from `GET /integrations`, e.g. `mercury`.
      schema:
        type: string
      example: mercury
  schemas:
    Integration:
      type: object
      required:
        - key
        - object
        - name
        - type
        - status
        - connection_methods
        - quality
        - signup_referral
      properties:
        key:
          type: string
          description: >-
            Stable identifier for the integration, e.g. `mercury`, `ramp`,
            `carta`.
          example: mercury
        object:
          type: string
          enum:
            - integration
        name:
          type: string
          description: Human-readable vendor name.
          example: Mercury
        type:
          type: string
          enum:
            - banking
            - cap_table
            - payroll
            - revenue
            - notifications
            - legal
          description: What kind of integration this is.
        status:
          type: string
          enum:
            - not_connected
            - connected
            - connecting
            - requires_reconnect
          description: >-
            Connection state. `connecting` means Finta has the connection but
            isn't done setting it up, such as a Carta or Pulley connection whose
            invite Finta is still checking. `requires_reconnect` means a
            previously working connection needs the user to reauthenticate.
        connection_methods:
          type: array
          description: >-
            Each way this integration can be connected, with where it stands.
            Every integration has the method it connects with. Mercury and Ramp
            also list a `grant_access` method once Finta asks the company to
            invite Finta for Mercury Treasury or Ramp Checking, data their
            sign-in connection doesn't include. Order is not significant.
          items:
            $ref: '#/components/schemas/ConnectionMethod'
        quality:
          type: string
          enum:
            - great
            - good
            - third_party
          description: >-
            How reliable this integration's data is, the same rating the Finta
            web app shows. `great` is an OAuth or API connection with real-time
            updates, `good` is read-only access straight from the source that is
            not real-time, and `third_party` is a Plaid-based bank connection
            whose data can be incomplete or error-prone.
        signup_referral:
          type: object
          nullable: true
          description: >-
            A referral offer for opening an account with this provider. Present
            only while `status` is `not_connected` and the provider has a Finta
            referral; `null` otherwise.
          required:
            - reward
            - link
          properties:
            reward:
              type: string
              description: >-
                What signing up through the link earns, as shown in the Finta
                web app.
              example: $500 sign up bonus
            link:
              type: string
              format: uri
              description: The provider's sign-up page for Finta's referral.
              example: https://mercury.com/r/fintadotcom
    Error:
      type: object
      required:
        - error
      properties:
        error:
          type: object
          required:
            - type
            - code
            - message
            - doc_url
          properties:
            type:
              type: string
              enum:
                - authentication_error
                - permission_error
                - invalid_request_error
                - rate_limit_error
                - limit_error
                - api_error
              description: >-
                The error category. `authentication_error` (401) means the
                bearer credential was missing, malformed, or unrecognized.
                `permission_error` (403) means the credential was valid but the
                caller is not allowed to access the resource.
                `invalid_request_error` covers invalid parameters, unavailable
                resources, invitation validation failures, and requests that
                conflict with current state (409). `rate_limit_error` is for
                per-minute burst limits or signup email limits (wait for
                Retry-After). `limit_error` is for monthly API call limits per
                company (upgrade or wait for reset). `api_error` denotes an
                operation failure on the server (500), or temporarily
                unavailable rule definitions (503 rules_not_ready). Retry with
                exponential backoff; persistent 503 errors require operator
                attention. For 503 totals_timeout on transaction totals, narrow
                the filters (for example start_date and end_date) before
                retrying instead.
            code:
              type: string
              enum:
                - invalid_api_key
                - invalid_token
                - user_inactive
                - user_removed_from_company
                - company_closed
                - subscription_required
                - invoice_overdue
                - invoice_status_unavailable
                - staging_access_denied
                - insufficient_permission
                - resource_missing
                - parameter_missing
                - invalid_email
                - category_update_failed
                - transaction_update_failed
                - totals_timeout
                - rate_limit_exceeded
                - monthly_limit_exceeded
                - invalid_date_range
                - invalid_date
                - invalid_request
                - idempotency_key_conflict
                - plan_upgrade_required
                - request_required
                - feature_disabled
                - invitation_invalid
                - invitation_create_failed
                - permissions_update_failed
                - invitation_resend_failed
                - invitation_revoke_failed
                - integration_not_connectable
                - integration_already_connected
                - connect_link_in_progress
                - connect_link_failed
                - rules_not_ready
                - forms_not_ready
                - taxes_not_ready
                - rule_already_exists
                - rule_busy
                - tag_already_exists
                - tag_busy
                - tag_deletion_failed
                - revision_conflict
                - revision_history_mismatch
                - rule_deletion_failed
                - account_create_failed
                - category_create_failed
                - upload_committed
                - upload_commit_failed
                - upload_in_progress
                - upload_delete_failed
                - reconciliation_locked
                - feedback_unavailable
                - billing_unavailable
                - closed_books
                - invoice_already_exists
                - invoice_not_open
                - invoice_not_matched
                - payment_already_matched
                - transaction_not_matchable
                - invoice_operation_failed
                - transaction_already_matched
                - transfer_not_eligible
                - transfer_operation_failed
                - transaction_already_split
                - transaction_not_splittable
                - transaction_not_split
                - split_operation_failed
                - journal_entries_unbalanced
                - journal_entries_reconciled
                - report_export_failed
                - report_export_limit_exceeded
                - invalid_file
                - wrong_document_type
                - file_already_attached
                - tax_upload_not_allowed
                - tax_upload_failed
                - integration_not_grantable
                - access_grant_failed
                - onboarding_incomplete
                - answers_incomplete
                - onboarding_locked
                - onboarding_complete
                - balance_mismatch
                - already_reconciled
                - account_closed
                - concurrent_change
                - not_reconciled
                - not_latest_reconciliation
                - reconciliation_failed
                - unreconcile_failed
              description: A specific error code.
            message:
              type: string
              description: A human-readable description of the error.
            doc_url:
              type: string
              format: uri
              description: A link to documentation about this error.
              example: https://www.finta.com/docs/api-reference/errors#invalid_api_key
            current_revision:
              type: integer
              minimum: 0
              description: >-
                Current sheet revision, returned on a revision conflict when
                available.
            finta_balance_cents:
              type: integer
              description: On balance_mismatch, Finta's balance through the period's end.
            statement_balance_cents:
              type: integer
              description: On balance_mismatch, the statement balance that was sent.
            difference_cents:
              type: integer
              description: >-
                On balance_mismatch, Finta's balance minus the statement
                balance.
            last_reconciliation_id:
              type: string
              nullable: true
              description: >-
                On not_latest_reconciliation, the recon_ ID of the account's
                latest reconciliation, which has to be undone first.
            param:
              type: string
              nullable: true
              description: The parameter that caused the error, if applicable.
            missing:
              type: array
              items:
                type: string
              description: >-
                With `answers_incomplete`, the onboarding answer keys still
                required before submitting.
            onboarding_status:
              type: string
              enum:
                - questionnaire
                - ready_to_submit
                - call_required
                - not_eligible
                - connect_banks
                - syncing
                - complete
              description: >-
                With `onboarding_incomplete`, where the company is in
                onboarding, as `GET /onboarding` returns it in `status`.
    ConnectionMethod:
      type: object
      required:
        - type
        - status
        - connect_via
      properties:
        type:
          type: string
          enum:
            - oauth
            - plaid
            - api_key
            - grant_access
          description: >-
            How this method connects. `oauth`: the user signs in to the provider
            and approves Finta. `plaid`: the user signs in to their bank through
            Plaid. `api_key`: the user gives Finta an API key from the provider.
            `grant_access`: the user invites Finta as a user in the provider.
            New values may be added; treat an unknown one like `connect_via`
            says.
        status:
          type: string
          enum:
            - not_connected
            - requested
            - granted
            - connecting
            - connected
            - requires_reconnect
          description: >-
            Where this method stands. `requested`: Finta has asked the company
            to do it, in the Finta inbox. `granted`: `POST
            /integrations/{key}/grant_access` recorded that the company invited
            Finta, as that inbox item asked. The other values mean what they do
            on the integration's `status`.
        connect_via:
          type: string
          enum:
            - api
            - provider_app
            - web_app
          description: >-
            How to start or redo it. `api`: `POST /integrations/{key}/connect`
            returns a link the user opens. `provider_app`: the user invites
            Finta as a user in the provider's own app, then `POST
            /integrations/{key}/grant_access` records it. `web_app`: the user
            does it in the Finta web app (Settings → Integrations). New values
            may be added.
  responses:
    Unauthorized:
      description: >-
        Authentication failed. Returned when the bearer credential itself is
        missing, malformed, or unrecognized. This is distinct from `403
        Forbidden`, which is returned when the credential is valid but the
        caller is not allowed to access the resource. These codes can be
        returned, distinguished by `error.code`:
          - `invalid_api_key` - no credential, or an API key that is unknown or revoked. Obtain a valid API key and retry.
          - `invalid_token` - the access token from a Finta CLI browser login (`finta_oat_`) has expired, its login was disconnected (logged out, replaced by a new login, or removed under Connected apps), or it was not issued for this API. Sign in again with `finta login`.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              type: authentication_error
              code: invalid_api_key
              message: >-
                Invalid API key provided. Check that your API key is correct and
                active.
              doc_url: https://www.finta.com/docs/api-reference/errors#invalid_api_key
    RateLimited:
      description: >-
        Too many requests. Two distinct limits can trigger a 429: (1) Per-minute
        burst limit (6,000 requests per 60 seconds per API key) returns
        `rate_limit_error` / `rate_limit_exceeded` with `Retry-After` header.
        (2) Monthly API call limit per company returns `limit_error` /
        `monthly_limit_exceeded` with the reset date in the message. Monthly
        limits vary by plan: Formation (10/month), Startup (300/month), Growth
        (30,000/month). Enterprise bypasses commercial monthly quotas, but still
        counts requests and enforces per-minute abuse limits. Blocked requests
        do not count toward the limit.
      headers:
        Retry-After:
          schema:
            type: integer
          description: >-
            Seconds until the burst rate limit resets. Only present for
            rate_limit_error responses.
        X-RateLimit-Limit:
          schema:
            type: integer
          description: >-
            Maximum requests per burst window. Only present for rate_limit_error
            responses.
        X-RateLimit-Remaining:
          schema:
            type: integer
          description: >-
            Requests remaining in burst window (0 when rate limited). Only
            present for rate_limit_error responses.
        X-RateLimit-Reset:
          schema:
            type: integer
          description: >-
            Unix timestamp when the burst window resets. Only present for
            rate_limit_error responses.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          examples:
            burst_rate_limit:
              summary: Per-minute burst rate limit exceeded
              value:
                error:
                  type: rate_limit_error
                  code: rate_limit_exceeded
                  message: >-
                    Too many requests. Please retry after the Retry-After
                    period.
                  doc_url: >-
                    https://www.finta.com/docs/api-reference/errors#rate_limit_exceeded
            monthly_limit:
              summary: Monthly API call limit exceeded
              value:
                error:
                  type: limit_error
                  code: monthly_limit_exceeded
                  message: >-
                    Monthly API limit reached. Your plan allows 300 calls per
                    company per month. Resets on April 1, 2026. Upgrade in
                    Settings -> Plans at app.finta.com.
                  doc_url: >-
                    https://www.finta.com/docs/api-reference/errors#monthly_limit_exceeded
    InvoiceStatusUnavailable:
      description: >-
        Payment status for a linked billing invoice could not be verified after
        its Pacific due-date cutoff. No endpoint data or mutation is returned.
        The error type is api_error and the code is invoice_status_unavailable.
        Retry after 60 seconds, then use bounded exponential backoff while the
        status service is unavailable. This refusal does not apply to unlinked
        companies or before the cutoff.
      headers:
        Retry-After:
          description: >-
            Seconds to wait before retrying this temporary payment-status
            failure.
          schema:
            type: integer
            example: 60
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              type: api_error
              code: invoice_status_unavailable
              message: >-
                We couldn’t verify your invoice payment status. Please try again
                shortly.
              doc_url: >-
                https://www.finta.com/docs/api-reference/errors#invoice_status_unavailable
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        An API key prefixed with `finta_`, or the access token from a Finta CLI
        browser login (`finta login`), prefixed with `finta_oat_`. A CLI login's
        access token lasts one hour and the CLI renews it itself.

````

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