{"uid":"cap_iqnV6BWwfc283YvZX5uXy","slug":"nexusapi-jwt-decode-4e1deedf","name":"NexusAPI JWT Decode","description":"Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.","url":"https://nexus-api-peach-nine.vercel.app/api/tools/jwt/decode","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"query":{"type":"string","description":"Search query or input parameter"}}},"responseSchema":{"type":"object","description":"API response data"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.160058","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":"$0.160058/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.160058","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.160058","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_sk8Dne1qz69Mj5_hHbNXH","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.160058","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Decodes a JWT (JSON Web Token) to extract its header, payload, and signature components without verifying the signature","exampleAgentPrompt":"Can you decode this JWT token for me and show me what's in the payload: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c","exampleUseCases":null,"resultDescription":"Returns the decoded JWT broken into its three parts: the header (algorithm and token type), the payload (claims such as sub, iat, exp, name, roles), and the raw signature — all presented in human-readable JSON format without signature verification","failureModes":["Malformed JWT string returns a parsing error","Empty or missing query input returns a 400-level error","Non-JWT base64 strings may produce garbage output or error","Network or server errors return 5xx responses","Payment failure results in 402 response before decoding occurs"],"whenToPreferThis":"Use this endpoint when you need to quickly inspect or extract claims from a JWT token without running a full verification pipeline. Ideal for debugging, logging, or reading token metadata when the signing secret is unavailable or irrelevant. Not suitable when you need to cryptographically verify the token's authenticity.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T19:04:15.305Z","isFirstParty":false}