Marketplace · API · x402

horizonpulse.dev/api/x402-check

x402 endpoint checker: decodes an x402 endpoint's 402 payment terms without paying. GET url (optional method GET/POST, JSON body for POST). Sends one unpaid request; never pays or signs. Returns JSON: httpStatus, isX402, x402Version, decoded accepts (network, asset, USD amount, payTo, EOA or contract), discovery metadata presence, and pass/warn/fail checks. Any HTTP answer from the target, even 4xx/5xx, is billed; bad input, blocked hosts, connection failures and timeouts are not.

Endpoint	`https://horizonpulse.dev/api/x402-check`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~280 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x5b32c973596078a967562ca652761404f19be0e9
method	GET
last updated	2026-10-19T11:22:11.938Z

Use it

Call it (an x402 client pays automatically)

curl -i https://horizonpulse.dev/api/x402-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/x402-586e15920199bb8f

Search the whole marketplace from your agent (MCP)

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

horizonpulse.dev/api/x402-check

Use it

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