{"uid":"cap_23kZrBGCBOf6BflBxrKAj","slug":"fastx402-http-status-code-explainer-61ff6b5a","name":"FastX402 HTTP Status Code Explainer","description":"200 pay-per-call tools for AI agents, from $0.001 per request in USDC on Base or Solana with x402. No account, no API key.","url":"https://fastx402.tools/http-status-explain?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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":["status"],"properties":{"status":{"type":"string","description":"Three-digit HTTP status code, such as 404"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"class":{"type":"string"},"phrase":{"type":"string"},"status":{"type":"integer"},"meaning":{"type":"string"}}}}}}},"responseSchema":{"type":"json","example":{"class":"Client Error","phrase":"Not Found","status":404,"meaning":"The requested resource could not be found."}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_agXs62rDO_Pe7gf7ogz9_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the standard phrase, class, and plain-English meaning for any three-digit HTTP status code","exampleAgentPrompt":"What does HTTP status code 429 mean — give me the official phrase, class, and a plain-English explanation of what it indicates.","exampleUseCases":[{"title":"Debugging API error responses","prompt":"My API keeps returning a 422 status — can you tell me what that means, what class it belongs to, and what typically causes it?"},{"title":"Explaining errors to non-technical users","prompt":"A user on our platform is seeing an HTTP 503 error. Can you look up what that status code means so I can write a friendly explanation for them?"},{"title":"Validating HTTP knowledge in documentation","prompt":"I'm writing API docs and need the official phrase and meaning for HTTP status 201 — what is it called and what does it signify?"}],"resultDescription":"A JSON object containing the numeric status code, its official short phrase (e.g. 'Not Found'), its class (e.g. 'Client Error'), and a plain-English sentence explaining what the status code means.","failureModes":["Invalid or non-existent status code returns an error or empty response","Missing required 'status' query parameter causes a 400-level error","Non-numeric status string may be rejected","Payment failure (insufficient USDC balance) blocks the request via x402 protocol"],"whenToPreferThis":"Use this endpoint when an agent needs a structured, machine-readable explanation of an HTTP status code, including its class and official phrase, for surfacing to users, populating documentation, or enriching error-handling logic. Ideal for pay-per-call usage without needing API keys or accounts.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T12:32:00.240Z","isFirstParty":false,"canonicalSlug":"fastx402-http-status-code-explainer-61ff6b5a"}