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Saylor Innovations HTTP Status Code Reference
x402
Saylor Innovations HTTP Status Code Reference is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Returns detailed metadata for a given HTTP status code, including its name, class, meaning, retryability, cacheability, related codes, and specification reference.
Price / call$0.01
Success—
StatusUnknown
How this service works
HTTP status code reference with name, class, meaning, whether it is retryable or cacheable by default and related codes, or list a whole class
Output
A JSON object containing the numeric code, human-readable name, class (e.g. 4xx Client Error), plain-English meaning, boolean flags for is_error, retryable, is_redirect, and cacheable_by_default, an array of related status codes, the RFC/specification section that defines it, and the data source.
Example use cases
Debugging unexpected API response
“My API is returning a 422 status code — can you tell me what that means, whether it's an error, and how my client should handle it?”
Building retry logic in an HTTP client
“I'm writing retry logic for my HTTP client — can you check whether a 503 status code is considered retryable and what class it belongs to?”
Verifying cacheability of a response code
“Is a 200 OK response cacheable by default, and what does the spec say about it? I want to know before I configure my CDN.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/dev/http-status?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent or developer needs authoritative, machine-readable metadata about a specific HTTP status code — including retryability, cacheability, error classification, and spec reference — rather than parsing documentation or relying on heuristics. Ideal for building retry logic, documenting APIs, or explaining unexpected responses to end users.
Side effects
- Missing or invalid 'code' query parameter returns an error response
- Unrecognized or non-standard status codes may return no result or partial data
- Network or upstream API errors return a non-200 HTTP response
- Payment of $0.01 USDC required per call; missing payment returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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