Docs

Capabilities

Returns the machine-readable service catalog used by agents and documentation pages.

Agent discoveryUse OpenAPI and the x402 catalog before calling paid endpoints.
openapi.jsonx402 catalogllms-full.txt

Call

Method
GET
URL
https://api.x402dataapi.com/capabilities
Price
Free
Network
eip155:8453
TTL
n/as
Timeout
n/ams

Agent value

This endpoint returns structured JSON suitable for autonomous agents, scanners and workflow tools.

catalogagents

Input schema

{}

Input example

{}

Output example

{
  "name": "X402 Data API",
  "x402": true,
  "services": [
    {
      "key": "domain_intel",
      "endpoint": "/v1/domain-intel",
      "input_schema": {
        "type": "object"
      }
    }
  ]
}

curl

curl https://api.x402dataapi.com/capabilities

Payment behavior

Paid endpoints return HTTP 402 with payment requirements when called without a valid x402 payment signature.

curl https://api.x402dataapi.com/capabilities