# Services from mcp.onchaindiligence.com on Zero

> mcp.onchaindiligence.com serves 3 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/mcp.onchaindiligence.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/mcp.onchaindiligence.com/health.json

## Services

- [OnChain Diligence Sanctions Screen](https://www.zero.xyz/c/onchain-diligence-sanctions-screen-5edf3b1f/llms.txt): $0.01/call via x402. Screens an EVM wallet address against the Chainalysis on-chain oracle to determine if it is sanctioned under OFAC, EU, or UN designation lists
- [OnChain Diligence Verdict](https://www.zero.xyz/c/onchain-diligence-verdict-7f4d4a05/llms.txt): $0.01/call via x402. Returns a PASS or BLOCK sanctions verdict for a single EVM wallet address using the Chainalysis on-chain oracle (OFAC).
- [OnChain Diligence Preflight Payment Check](https://www.zero.xyz/c/onchain-diligence-preflight-payment-check-609d7939/llms.txt): $0.01/call via x402. Evaluates a proposed payment against a caller-supplied policy and optional sanctions screening, returning ALLOW, REQUIRE_APPROVAL, or BLOCK with a signed verifiable receipt before execution.

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

- [Zero catalog index](https://www.zero.xyz/llms.txt)