# AgentKYB Business Counterparty Check

> AgentKYB Business Counterparty Check is a paid API for AI agents from agentkyb.andy229651.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-11).

Performs a pre-transaction Know Your Business (KYB) check on a company, combining legal-entity resolution, sanctions screening, RDAP domain evidence, and cross-source corroboration into a compact evidence result.

## Facts

- Endpoint: POST https://agentkyb.andy229651.workers.dev/mcp-x402-payai-test?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentkyb-business-counterparty-check-6410e20e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_G0eOZwRXeBuGhpdtraHJr

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agentkyb-business-counterparty-check-6410e20e -d '<json body>'
```

Example prompt: Before I send this $50,000 payment to Acme Logistics LLC at acmelogistics.com, can you run a KYB check on them — verify their legal entity, check for sanctions, and confirm their company name matches their domain registration?

## When to prefer this

Choose this endpoint when an AI agent needs a rapid, multi-signal pre-transaction KYB check on a business counterparty without integrating multiple compliance APIs separately. It is especially useful for autonomous agent workflows that must gate payments or onboarding decisions on a combined legal-entity, sanctions, and domain-consistency verdict in a single call. Prefer it over raw OFAC or RDAP queries when you need corroborated, cross-source evidence bundled into one response.

## Known failure modes

- Unknown or unresolvable company name — insufficient public records to return entity evidence
- Domain not found in RDAP — returns partial result without domain evidence
- Ambiguous company name matching multiple legal entities — may return low-confidence or multiple candidates
- Payment failure — x402 payment not processed, endpoint returns 402
- Network timeout on external data source lookups — partial or degraded response
- Sanctioned entity detected — result flags match but does not block the transaction autonomously

## How this service works

Use before an AI agent pays a vendor or counterparty. Returns an action-oriented allow/review/block evidence preflight: legal-entity resolution, potential sanctions signals, RDAP domain evidence and company-domain consistency. x402 payment safety decision support only; not legal or transaction approval.

## Output

A compact evidence result containing: legal entity resolution details, cross-source corroboration findings, sanctions screening outcome, RDAP domain registration evidence, and a domain/company-name consistency assessment. Intended as decision support only, not legal advice or transaction approval.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentkyb-business-counterparty-check-6410e20e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentkyb.andy229651.workers.dev](https://www.zero.xyz/host/agentkyb.andy229651.workers.dev/llms.txt)