{"uid":"cap_KKlspR0oKl4oAcp8k-ZtI","slug":"pennyrail-hex-decode-e4a35d48","name":"PennyRail Hex Decode","description":"Machine-readable settlement service","url":"https://pennyrail.vercel.app/api/f/encoding.hex-decode","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"string","description":"string"}}},"responseSchema":{"type":"object","required":["operation","result"],"properties":{"result":{},"operation":{"type":"string"}},"additionalProperties":true},"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_6S0F_rUJmJ6w3L0503lRD","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 hexadecimal-encoded string back into its original plaintext representation","exampleAgentPrompt":"Can you decode this hex string for me: '48656c6c6f20576f726c64'? I need to know what it says in plain text.","exampleUseCases":[{"title":"Decode hex-encoded API response","prompt":"I got back this hex-encoded value from another service: '4a736f6e20526573706f6e7365' — can you decode it to see what it actually says?"},{"title":"Debug hex payload in logs","prompt":"My application logs show this hex blob: '636f6e6e656374696f6e5f6572726f72' — decode it so I can understand what the error message was."},{"title":"Reverse hex encoding in data pipeline","prompt":"I have a field in my dataset that's stored as hex: '55736572496420313233' — convert it back to the original string so I can read it."}],"resultDescription":"Returns a JSON object containing an 'operation' field (identifying the operation performed, e.g. 'hex-decode') and a 'result' field containing the decoded plaintext string produced from the hex input.","failureModes":["Invalid hex string (odd length or non-hex characters) may return an error or malformed result","Empty input string may produce an empty result or error","Non-UTF8 byte sequences in the decoded output may cause encoding errors","Payment failure via x402 protocol will prevent the call from completing"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call hex decoding operation without setting up local tooling, or when operating in an agent pipeline that already uses the x402 micropayment protocol. Ideal for lightweight, one-off hex decoding tasks at $0.001 USDC per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:54:12.316Z","isFirstParty":false}