Marketplace · API · x402

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, 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.

Endpoint	`https://mcp.onchaindiligence.com/x402/screen/:address`
Trust	100% uptime over 1 checks · ~420 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x63c347d7e42b940e79AfEC3D172bFc2921b6c897
method	GET
last updated	2026-11-10T00:16:41.882Z

Use it

Call it (an x402 client pays automatically)

curl -i https://mcp.onchaindiligence.com/x402/screen/:address
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-6f049b4b581f763f

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}