Marketplace · API · x402
onchaincheck.dev/check
Is it safe to pay this address? One check before sending or accepting crypto: OFAC SDN sanctions screen, wallet age, EOA or contract, first funder and recent large transfers on Base, Ethereum, Arbitrum, Optimism or Polygon (wallet kind and activity on Solana), plus the token's 0-100 risk score when a token is given. Returns ok, caution or block with plain reasons and each check in full. Rules-based, not legal advice. Errors return 4xx/5xx JSON and aren't charged.
| Endpoint | https://onchaincheck.dev/check |
| Trust | Not checked yet |
| Pricing | Pay per call with x402, no account. Call it to get an exact quote before paying. |
| network | eip155:8453 |
| scheme | exact |
| pay to | 0x2ECB9E1fcca7A62758c679F11bC3241466d181d8 |
| method | GET |
| last updated | 2026-11-10T14:10:11.751Z |
Use it
Call it (an x402 client pays automatically)
curl -i https://onchaincheck.dev/check
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATUREThis listing as JSON
curl https://aipaygen.com/v1/catalog/api/x402-73c43e24a649ed65Search the whole marketplace from your agent (MCP)
{
"mcpServers": {
"aipaygen": {
"url": "https://aipaygen.com/mcp"
}
}
}Related
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