# Adfin

**Canonical:** https://apis.io/providers/adfin/  
**Website:** https://adfin.com  
**APIs profiled:** 1

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.

## Kin Score — 45.3 / 100 (developing)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (+0.0 from 45.3).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 42.7 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 54.8 |
| Commercial Clarity | 38.2 |
| Access Clarity | 38.2 |

Regulatory layer — **Payments**: 51.6 (matched via tags).

## Agent readiness — 39.1 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | served |
| Idempotency | documented |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | yes |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | served |
| Protected Resource Metadata | no |
| Dynamic Client Registration | yes |
| Agentic Commerce | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (1)

- **Adfin API** — Invoicing, payments and credit-control API — customers, invoices, payment requests, direct-debit mandates, payments and signed webhooks.

## MCP servers (1)

- **Adfin MCP Server**

## Security (2)

- **Adfin Authentication** — oauth2 · 3 schemes
- **Adfin Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Company, Fintech, Payments, Invoicing, Credit Control, Direct Debit, Billing, Accounts Receivable, United Kingdom

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/adfin/). Scores are computed from the provider's own public artifacts under a published rubric.