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x402/HTTP Error Decoder
x402
x402/HTTP Error Decoder is a paid API for AI agents from code-toll-production.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-24).
Decodes x402 and HTTP error codes into structured recovery instructions including meaning, recommended action, retry strategy, backoff, and fix.
Price / call$0.01
Success—
StatusUnknown
How this service works
Decode any x402/HTTP error into structured recovery instructions. POST /decode-error {"status": 402} or {"status": "timeout"}. Returns meaning, action, retries, backoff, and fix.
Output
Returns a structured JSON object containing: the human-readable meaning of the error, a recommended action to take, retry count guidance, backoff strategy, and a concrete fix description to resolve the issue.
Example use cases
Recovering from x402 payment error
“My agent just hit a 402 error when calling a paid API endpoint. Can you decode that error and tell me what it means, what action to take, and whether I should retry?”
Debugging a timeout in an agentic workflow
“One of my API calls came back with a timeout error and I'm not sure how to handle it. Can you decode that into structured recovery steps — what it means, how many times to retry, and what backoff to use?”
Understanding x402 errors for agent error handling
“I'm building an agent that calls x402-gated APIs and I need to handle errors gracefully. Can you decode a 402 status and give me the meaning, action, retry count, backoff, and exact fix I should implement?”
Technical details
Endpoint
POSThttps://code-toll-production.up.railway.app/decode-error?utm_source=zero.xyzWhen to prefer
Use this endpoint when your agent encounters x402 or HTTP errors and needs structured, actionable recovery instructions rather than raw documentation lookup. Especially valuable in agentic workflows using the x402 payment protocol where automated retry and backoff logic needs to be derived from error responses.
Side effects
- Missing or invalid status field returns a 400 bad request error
- Unrecognized error codes may return a generic or null fix
- Service unavailability on Railway hosting may cause 502/503 responses
- Malformed JSON body causes parsing failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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