OnChainDiligence
mcp.onchaindiligence.com · 2 paid endpoints · listed 2026-10-27
Screen an EVM wallet address by exact match against the digital currency address identifiers on the official US Treasury OFAC SDN List (validated snapshot, refreshed hourly). Returns a signed listed / not_listed result with the SDN entry, dataset provenance and limits. SDN only, not EU/UN/UK lists; a non-match is not legal clearance. For payment screening before sending funds.
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| POST | mcp.onchaindiligence.com/x402/preflight-payment Evaluate a proposed payment against a structured, caller-supplied policy and optional OFAC SDN recipient screening, before execution. Returns ALLOW, REQUIRE_APP | $0.01 | Base |
| GET | mcp.onchaindiligence.com/x402/screen/:address Screen an EVM wallet address by exact match against the digital currency address identifiers on the official US Treasury OFAC SDN List (validated snapshot, refr | $0.01 | Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 7 days ago | mcp.onchaindiligence.com/x402/screen/:address | 400 | 548 | HTTP 400 instead of 402 |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-11-02 | 2 | $6.74 | |
| 2026-10-31 | 1 | $1.13 | |
| 2026-10-30 | 1 | $0.01 | |
| 2026-10-28 | 1 | $40.00 |
Is this your API?
<a href="https://logicnodes.io/observatory/p/mcp.onchaindiligence.com"><img src="https://logicnodes.io/observatory/badge/mcp.onchaindiligence.com.svg" alt="x402 status"></a>
Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/mcp.onchaindiligence.com