Developer tools

Syntax Check

Catch problems before the next step. Validate sample JSON payloads with readable error reports.

Sample listing

Illustrative sample. The endpoint, prices and examples are educational; this is not a live paid service. Use the playground for a controlled demo.

Endpoint

HTTP endpoint

GET https://example.com/sample/syntax-check

Payment requirements

Price per call: 0.0001 USDC
Network: Base (eip155:8453)
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Receiving address: Not provided
Scheme: exact

Requirements are provider-supplied or illustrative. They do not prove endpoint availability or a successful payment.

Integration examples

Discover the listing through CallPort. Invoke the provider separately using an x402-capable client when live payments become appropriate.

Discovery · JavaScript

const response = await fetch(
  new URL("/api/v1/services/syntax-check", CALLPORT_ORIGIN)
);
if (!response.ok) throw new Error("Discovery unavailable");
const { data: service } = await response.json();
console.log(service.endpoint);

Provider request · no payment handling

// A provider can return HTTP 402. This does not authorize payment.
const response = await fetch("https://example.com/sample/syntax-check", {
  method: "GET"
});
console.log(response.status);

Input & output

Input example

{
  "query": "agent infrastructure"
}

Output example

{
  "demo": true,
  "result": "Illustrative output only"
}