{"uid":"cap_e4iHZZ471fH5RJwNrr2Dd","slug":"quartermaster-jwt-decoder-b06c9542","name":"Quartermaster JWT Decoder","description":"Decode a JWT header and payload (signature not verified).","url":"https://quartermaster.surewhynot.app/v1/jwt-decode","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":["token"],"properties":{"token":{"type":"string","description":"JWT to decode (signature NOT verified)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"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_OCoIrrhBa04i960wLLEl6","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":"Decodes a JWT token's header and payload into readable JSON without verifying the signature.","exampleAgentPrompt":"Can you decode this JWT for me and show me what's in the header and payload — I don't need signature verification, just want to read the claims: eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c","exampleUseCases":null,"resultDescription":"Returns the decoded JWT header and payload as structured JSON objects, exposing all claims such as sub, iat, exp, iss, and any custom fields. Signature is NOT verified.","failureModes":["Malformed or non-JWT string returns an error indicating invalid token format","Missing 'token' query parameter returns a validation error","Token with fewer than 3 segments (not a valid JWT structure) fails to decode","Extremely long tokens may be rejected"],"whenToPreferThis":"Use this endpoint when you need to quickly inspect the contents of a JWT token — such as reading expiration time, subject, issuer, or custom claims — without needing to verify its cryptographic signature. Ideal for debugging, logging, or extracting metadata from tokens where trust verification is handled separately.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:33:59.835Z","isFirstParty":false}