Marketplace · API · x402

api.cardhedger.com/v1/agent/cards/prices-by-cert

Get card information and pricing by grader certificate number.

Endpointhttps://api.cardhedger.com/v1/agent/cards/prices-by-cert
TrustNot checked yet
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xa19f914a0f5b178cbe687727186bb03108a32ed8
methodPOST
last updated2026-11-14T00:21:28.605Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.cardhedger.com/v1/agent/cards/prices-by-cert
# 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-ef791ea2c33eafa3

Search the whole marketplace from your agent (MCP)

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

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