Marketplace · API · x402

blockint.ai/api/v1/c3-reports/check/:address

Legacy minimal alias of /screen. Returns result 'caution' (with reportCount, crimeTypes and any OFAC SDN sanctions entries) when reports, an OFAC SDN match or a current Tether/Circle freeze are found, otherwise 'no_c3_reports', plus action, actionReason, sanctioned, frozen and freezes. 'no_c3_reports' is not a guarantee that the address is safe.

Endpoint	`https://blockint.ai/api/v1/c3-reports/check/:address`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~531 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	0x32984663A11b9d7634Bf35835AE32B5A031637D5
method	GET
last updated	2026-10-18T13:25:50.309Z

Use it

Call it (an x402 client pays automatically)

curl -i https://blockint.ai/api/v1/c3-reports/check/: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/x402-658055d37e1f5534

Search the whole marketplace from your agent (MCP)

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