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

# Document received

> `document.received`: A document passed the free checks (type, size, readable) and will be sent to CAC with the registration. FastCAC doesn't verify what it shows. Signed with your endpoint's secret (webhook-id, webhook-timestamp, webhook-signature headers), not your API key.



## OpenAPI

````yaml /openapi.json webhook document.received
openapi: 3.1.0
info:
  title: FastCAC API
  description: Register Nigerian businesses with CAC from your own product.
  version: '2026-11-01'
servers:
  - url: https://api.fastcac.com/v1
security:
  - apiKey: []
tags:
  - name: Account
    description: Check your key and see your organization.
  - name: Names
    description: >-
      Check a business name against CAC's rules and registry, and the categories
      it takes, before registering it.
  - name: Registrations
    description: Register a Business Name with CAC, from draft to certificate.
  - name: Balance
    description: >-
      Your prepaid wallet: what's available, its transactions and your funding
      account.
  - name: Test helpers
    description: >-
      Test keys only: move a registration on without waiting, or simulate a
      deposit.
  - name: Webhooks
    description: Endpoints that receive events, and the events sent to them.
  - name: Webhook events
    description: What FastCAC POSTs to your webhook endpoints.
paths: {}
components:
  securitySchemes:
    apiKey:
      type: http
      scheme: bearer
      description: 'Your secret API key: fc_test_… in test mode, fc_live_… in live mode.'

````

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