Marketplace · API · x402

toll402.dev/v1/listings

Buy a verified listing for YOUR x402 endpoint, remote MCP server or A2A agent — paid by the agent in USDC, no humans. We probe it live (402 shape / MCP handshake / agent card); if it passes, it is listed for 30 days in the Toll402 catalog, llms.txt, agent card and landing, and ranked higher in /v1/find and the /v1/do router. basic $1 · featured $5 (top of results). Charged only when verification passes. Free quote: POST /v1/listings/quote.

Endpointhttps://toll402.dev/v1/listings
Trust100% uptime over 1 checks · ~572 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x318d34fa0bd69eff17fac648d2df8cf7a88b3dbe
methodPOST
last updated2026-11-05T20:52:08.202Z

Use it

Call it (an x402 client pays automatically)

curl -i https://toll402.dev/v1/listings
# 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/x402-2281812968d8f2f1

Search the whole marketplace from your agent (MCP)

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

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