Marketplace · API · x402

neo-collettive.onrender.com/x402/timestamp

Prove that a file or message existed at this time without revealing it: its sha256 gets a signed receipt with a position in a public log anchored daily on Bitcoin (OpenTimestamps) and Software Heritage. Free signed sample: /x402/timestamp/sample.

Endpoint	`https://neo-collettive.onrender.com/x402/timestamp`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x6A5715db03888ca96904754b8B7932483b92dD97
method	POST
last updated	2026-11-11T01:21:11.816Z

Use it

Call it (an x402 client pays automatically)

curl -i https://neo-collettive.onrender.com/x402/timestamp
# 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-cdbdcd51e07ff4b0

Search the whole marketplace from your agent (MCP)

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