Marketplace · API · x402

freetier-agent-api.pages.dev/api/apis/search

API search: Search 2,230 link-checked public & free-tier APIs (59 categories). Filters: q, category, auth=none, alive=yes, https=yes, kind, limit<=50.

Endpointhttps://freetier-agent-api.pages.dev/api/apis/search
TrustNot checked yet
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x165Eb3dC3E98403ecB1141e90400F5e71806554B
methodGET
last updated2026-11-10T14:18:54.934Z

Use it

Call it (an x402 client pays automatically)

curl -i https://freetier-agent-api.pages.dev/api/apis/search
# 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/x402-7539142b208560ec

Search the whole marketplace from your agent (MCP)

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

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