{"uid":"cap_JRNA8AOuqCkgxq533bgqz","slug":"dev-reference-http-status-code-lookup-dbbc2c90","name":"Dev Reference – HTTP Status Code Lookup","description":"HTTP status code meaning, typical cause, client action and cacheability, from the IANA registry and RFC 9110.","url":"https://dev-reference.x402tookit.com/http-status?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["code"],"properties":{"code":{"type":"integer","description":"Status code, 100 to 599"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"code":{"type":["null","number"]},"name":{"type":["null","string"]},"class":{"type":["null","string"]},"source":{"type":["null","string"]},"vendor":{},"meaning":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"reference":{"type":["null","string"]},"retryHint":{"type":["null","string"]},"classDigit":{"type":["null","number"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"registered":{"type":["boolean","null"]},"clientAction":{"type":["null","string"]},"registryNote":{},"typicalCause":{"type":["null","string"]},"cacheableByDefault":{"type":["boolean","null"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_U_yCqun0Hsf2sfqht-pTU","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the meaning, typical cause, client action, and cacheability of any HTTP status code from the IANA registry and RFC 9110.","exampleAgentPrompt":"What does HTTP status code 429 mean — what causes it, should my client retry, and is it cacheable by default?","exampleUseCases":[{"title":"Debugging unexpected API error","prompt":"I'm getting a 502 from an upstream API — what does that mean, what usually causes it, and what should my client do next?"},{"title":"Building retry logic for HTTP client","prompt":"For HTTP status 503, tell me the official meaning, whether clients should retry, and any retry hints from the RFC so I can wire up my retry logic correctly."},{"title":"Checking cacheability of a response code","prompt":"Is a 301 redirect cacheable by default according to the HTTP spec, and what's the official IANA name for it?"}],"resultDescription":"A structured record containing the status code number, its official name, class (1xx–5xx), one-line meaning, typical cause, recommended client action, retry hint, whether it is cacheable by default, whether it is IANA-registered, the authoritative RFC reference, any vendor-specific notes, and a summary verdict — all sourced from the IANA registry and RFC 9110.","failureModes":["Code out of range (below 100 or above 599) — likely returns an error or null fields","Unregistered or proprietary status codes may return partial data with registered=false","Missing required 'code' query parameter returns a validation error","Non-integer input rejected by schema validation"],"whenToPreferThis":"Choose this endpoint when you need authoritative, spec-grounded information about a specific HTTP status code — including its IANA registration status, RFC 9110 semantics, cacheability, and actionable client guidance. Prefer it over general web search when you need structured, machine-readable output for use in retry logic, error handling, documentation generation, or developer tooling.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T00:30:24.253Z","isFirstParty":false,"canonicalSlug":"dev-reference-http-status-code-lookup-dbbc2c90"}