Adfin

aid: adfin
name: Adfin
description: Adfin is a London-based fintech that combines payment collection and AI-powered credit control so businesses
  get paid faster. Its developer platform exposes invoicing, payments and credit-control APIs — create and activate invoices,
  issue payment requests with hosted payment pages, set up direct-debit mandates, and reconcile payments — plus signed webhooks
  for real-time invoice, mandate and payment events. Authentication is OAuth 2.0 (client-credentials for platforms, authorization-code
  for biller authorization), with an official Node.js SDK and a first-party MCP server for agent-driven invoicing. Adfin is
  a portfolio company of Index Ventures.
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://assets.adfin.com/frontend-resources/favicon/web-app-manifest-512x512.png
url: https://raw.githubusercontent.com/api-evangelist/adfin/refs/heads/main/apis.yml
x-type: company
x-source: index-ventures-portfolio
x-tier: profiled
x-tier-reason: enrichment-pipeline
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-17'
tags:
- Company
- Fintech
- Payments
- Invoicing
- Credit Control
- Direct Debit
- Billing
- Accounts Receivable
- United Kingdom
apis:
- name: Adfin API
  description: Invoicing, payments and credit-control API — customers, invoices, payment requests, direct-debit mandates,
    payments and signed webhooks.
  humanURL: https://developer.adfin.com/docs/welcome
  baseURL: https://api.adfin.com
  properties:
  - type: Documentation
    url: https://developer.adfin.com/docs/welcome
  - type: APIReference
    url: https://developer.adfin.com/reference/welcome-1
  - type: GettingStarted
    url: https://developer.adfin.com/products/direct-integration/guides/get-started/1_get-access
  - type: Authentication
    url: authentication/adfin-authentication.yml
  - type: Webhooks
    url: asyncapi/adfin-webhooks.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://adfin.com
- type: DeveloperPortal
  url: https://developer.adfin.com/
- type: Documentation
  url: https://developer.adfin.com/docs/welcome
- type: APIReference
  url: https://developer.adfin.com/reference/welcome-1
- type: GettingStarted
  url: https://developer.adfin.com/products/direct-integration/guides/get-started/1_get-access
- type: Support
  url: https://support.adfin.com/en/
- type: Blog
  url: https://adfin.com/blog
- type: ChangeLog
  url: https://developer.adfin.com/changelog
- type: GitHubOrganization
  url: https://github.com/Adfin-Engineering
- type: Pricing
  url: https://adfin.com/pricing
- type: SignUp
  url: https://console.adfin.com/auth/signup
- type: Login
  url: https://console.adfin.com/auth/login
- type: TermsOfService
  url: https://adfin.com/terms-of-service
- type: PrivacyPolicy
  url: https://adfin.com/privacy-policy
- type: Authentication
  url: authentication/adfin-authentication.yml
- type: Conventions
  url: conventions/adfin-conventions.yml
- type: Idempotency
  url: conventions/adfin-conventions.yml
- type: Webhooks
  url: asyncapi/adfin-webhooks.yml
- type: Packages
  url: packages/adfin-packages.yml
- type: SDKs
  url: packages/adfin-packages.yml
- type: MCPServer
  url: mcp/adfin-mcp.yml
- type: LLMsTxt
  url: llms/adfin-llms.txt
- type: WellKnown
  url: well-known/adfin-well-known.yml
- type: Sandbox
  url: sandbox/adfin-sandbox.yml
- type: DataModel
  url: data-model/adfin-data-model.yml
- type: Conformance
  url: conformance/adfin-conformance.yml
- type: DomainSecurity
  url: security/adfin-domain-security.yml