Marketplace · API · x402

rubric-protocol.com/v1/c2pa/verdict-attest/claim

C2PA verdict attestation Tier B. Client runs Credentio locally, submits verdict JSON + asset hash + client signature. Rubric countersigns and anchors receipt. Attests the assertion was made, not verdict truth. Operated by TenPrint.

Endpoint	`https://rubric-protocol.com/v1/c2pa/verdict-attest/claim`
Trust	100% uptime over 1 checks · ~646 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	0xaB6731A0BcDf511c2842C768a03448075aB654ca
method	POST
last updated	2026-10-18T14:19:05.36Z

Use it

Call it (an x402 client pays automatically)

curl -i https://rubric-protocol.com/v1/c2pa/verdict-attest/claim
# 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/x402-5924d37623997465

Search the whole marketplace from your agent (MCP)

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