# Counterparty Check

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

Counterparty Check, operated by CHT Web, LLC, is a pre-payment counterparty risk API for AI agents: one call before money moves screens a payee against OFAC SDN and consolidated sanctions lists (including listed crypto wallets), detects lookalike vendor, executive and brand impersonation domains, checks domain age and email authentication, validates routing numbers, IBANs, SWIFT/BIC and wallet checksums, and flags invoice-fraud and bank-detail-change patterns. It returns a proceed, review or block verdict with reasons and a signed receipt, and is offered as a REST API (POST /v1/check, /v1/screen, /v1/receipts/verify) and a remote MCP server, paid per call via x402/MPP in USDC on Base or with a prepaid API key.

## Kin Score — 45.7 / 100 (developing)

Scored 2026-11-13 under rubric 0.28.0.

| Facet | Score |
|---|---|
| Discoverability | 68.3 |
| Contract Quality | 53.9 |
| Contract Governance | 35.6 |
| Operational Transparency | 26.2 |
| Developer Ergonomics | 28.0 |
| Access Clarity | 66.0 |

Regulatory layer — **Payments**: 17.0 (matched via tags).

## Agent readiness — 29.5 (agent-ready)

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

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (6)

- **Counterparty Check Account API** — The Account API from Counterparty Check — 1 operation(s) for account.
- **Counterparty Check Check API** — The Check API from Counterparty Check — 1 operation(s) for check.
- **Counterparty Check MCP API** — The Mcp API from Counterparty Check — 1 operation(s) for mcp.
- **Counterparty Check Pricing API** — The Pricing API from Counterparty Check — 1 operation(s) for pricing.
- **Counterparty Check Receipts API** — The Receipts API from Counterparty Check — 1 operation(s) for receipts.
- **Counterparty Check Screen API** — The Screen API from Counterparty Check — 1 operation(s) for screen.

## MCP servers (1)

- **Counterparty Check MCP Server** — Remote MCP server at counterpartycheck.com requiring an API key; 4 tools listed.

## Agentic access (1)

- **Counterparty Check Agentic Access** — 6 operations · 4 acting

## Security (2)

- **Counterparty Check Authentication** — 3 schemes
- **Counterparty Check Domain Security** — TLSv1.3

## Plans (1)

- **Counterparty Check Plans Pricing**

## Tags

Company, Payments, Fraud Prevention, Sanctions Screening, Compliance, AI Agents, MCP, x402, Know Your Counterparty

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