{"uid":"cap_XttEwq_Gm9xLFBOsSrrzH","slug":"pennyrail-sha-256-crypto-hash-2a41205c","name":"PennyRail SHA-256 Crypto Hash","description":"Machine-readable settlement service","url":"https://pennyrail.vercel.app/api/p/nano/crypto.sha256--sha256","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"string"}}},"responseSchema":{"type":"object","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_G52pO3rbHSo64u1nXCFH7","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":"Computes a SHA-256 cryptographic hash of an input string, delivered as a paid micro-transaction API call","exampleAgentPrompt":"Can you compute the SHA-256 hash of the string 'hello world' for me?","exampleUseCases":[{"title":"Verify file or message integrity","prompt":"Hash this string 'user:admin:password123' with SHA-256 so I can compare it against a stored checksum to confirm it hasn't been tampered with."},{"title":"Generate deterministic content fingerprint","prompt":"I need a SHA-256 digest of this JSON blob so I can use it as a unique cache key — can you hash the string '{\"userId\":42,\"action\":\"login\"}'?"},{"title":"Create a hashed identifier for privacy","prompt":"Take the email address 'alice@example.com' and give me its SHA-256 hash so I can store a privacy-safe identifier instead of the raw email."}],"resultDescription":"Returns a JSON object containing the SHA-256 hash (hex-encoded digest) of the provided input string, suitable for integrity checking, fingerprinting, or cryptographic verification use cases.","failureModes":["Missing 'input' field returns a validation error","Payment not provided or insufficient USDC balance causes a 402 Payment Required response","Very large input strings may exceed payload limits","Non-string input types may cause schema validation failure"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-use SHA-256 hash computation without standing up your own hashing infrastructure, particularly in agent pipelines where you want to pay micro-amounts per call rather than maintain a dedicated service. Best suited for lightweight, occasional hashing needs within x402-compatible payment flows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:01:47.364Z","isFirstParty":false}