Marketplace · API · x402

api.fresh402.com/v2/openapi-contract-diff

Use for conservative OpenAPI 3.0/3.1 JSON compatibility evidence after unfiltered free registration. Compare previous or fixed baseline, or override with an available same-watch hash. Bounded path/operation analysis with uncertainty warnings; no YAML, external reference fetch or execution of described operations. x402 $0.020 USDC on Base.

Endpointhttps://api.fresh402.com/v2/openapi-contract-diff
TrustNot checked yet
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xFAC492A8D7843C9aFCCa6A1691BCCB5425ab14F3
methodPOST
last updated2026-11-13T02:32:01.654Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.fresh402.com/v2/openapi-contract-diff
# 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/x402-1123d82f324588ef

Search the whole marketplace from your agent (MCP)

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