Marketplace · API · x402

tokencheck.402api.dev/v1/seller-check

Call before paying an unfamiliar x402 endpoint, or to pick between providers. $0.02, usually <1 s plus one probe: live unpaid probe (status, latency, TLS, PAYMENT-REQUIRED decoded and sanity-checked), seller reputation from indexed on-chain USDC payments to its Base payTo (24 h/7 d count, distinct payers, total and median USD, top-payer share), Bazaar listing and price, and a looks legit/caution/avoid verdict citing each fact. Errors: 400/503 JSON {error}, not charged.

Endpointhttps://tokencheck.402api.dev/v1/seller-check
Trust✓ Verified callable · 100% uptime over 1 checks · ~632 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x8C8A81E2acEc6ed62421f1f4E7125B0b84FFffdE
methodGET
last updated2026-10-24T00:41:47.941Z

Use it

Call it (an x402 client pays automatically)

curl -i https://tokencheck.402api.dev/v1/seller-check
# 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-ecff1c3d99896402

Search the whole marketplace from your agent (MCP)

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