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x402 Quote Inspector
x402
x402 Quote Inspector is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.0005/call, status down (last checked 2026-09-15).
Fetches and inspects the structured x402 HTTP 402-payment quote from a given URL or endpoint, returning parsed payment metadata.
Price / call$0.0005
Success—
StatusDown
How this service works
Low-price OpenAI-compatible GPT-5.5 chat completions and text tools over x402 USDC on Base: $0.0001 compact requests, $0.066667 true max-output requests, no subscription.
Output
Returns a JSON object with ok status, tool name ('x402QuoteInspector'), and a structured summary of the x402 402-payment quote found at the target URL, including payment amount, currency, and other parsed quote metadata.
Example use cases
Example prompt
“Can you inspect the x402 payment quote for https://example-api.xyz/v1/some-endpoint using a GET request and tell me what the payment terms and metadata look like?”
Technical details
Endpoint
POSThttps://gpt55.558686.xyz/v1/tools/x402-quote-inspectorWhen to prefer
Use this endpoint when you need to programmatically inspect or parse x402 HTTP 402 payment quotes from an arbitrary URL or API endpoint, particularly in x402-native workflows on Base/USDC where you want to understand payment requirements before committing to a payment flow.
Side effects
- Target URL does not return a 402 response — inspection may return empty or error result
- Invalid or unreachable URL/endpoint — timeout or connection error
- URL parameter missing — schema validation error
- timeout_ms exceeded (max 12000ms) — request timeout
- Malformed x402 quote at target — parsing failure or incomplete summary
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tool": "x402QuoteInspector",
"summary": "Structured x402 402-payment quote inspection."
}
}Tags
x402
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