{"uid":"cap_fz606cQY_ZhALhU-9ugwi","slug":"sha-512-224-digest-base64url-encoded-731d42c4","name":"SHA-512/224 Digest — Base64url Encoded","description":"Call when an agent needs a sha512-224 digest of text, encoded as base64url. No network and no LLM. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base64url first.","url":"https://agentshelf.syntexa.ch/v1/digest-sha512-224-base64url?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"key":{"type":"string","maxLength":512,"minLength":1,"description":"HMAC secret. Required on HMAC SKUs. Omit it for plain digests and checksums. The key is not stored."},"text":{"type":"string","examples":["hello"],"maxLength":100000,"minLength":1,"description":"Message to digest. For raw-hex SKUs this is hex bytes; for utf16 or latin1 SKUs it is decoded with that encoding. Otherwise it is UTF-8 text."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0ZQgMMJIkLdptWrk2i1kt","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes a SHA-512/224 cryptographic hash of the provided text and returns it encoded as a base64url string.","exampleAgentPrompt":"Hash the text 'Hello, world!' using SHA-512/224 and give me the result in base64url encoding.","exampleUseCases":[{"title":"Content fingerprinting for deduplication","prompt":"Take this article text and generate a SHA-512/224 base64url hash so I can use it as a unique fingerprint to detect duplicates: 'The quick brown fox jumps over the lazy dog.'"},{"title":"Compact checksum for file metadata","prompt":"I have this JSON blob and need a short, URL-safe SHA-512/224 hash in base64url format to use as a cache key — can you hash the string '{\"user\":42,\"action\":\"login\"}'?"},{"title":"Password pre-hashing before storage","prompt":"Before I store it, hash the passphrase 'CorrectHorseBatteryStaple' with SHA-512/224 and return it as a base64url string so I can use it as a derived key."}],"resultDescription":"Returns a base64url-encoded SHA-512/224 digest string of the provided input text. The output is a fixed-length, URL-safe hash suitable for use in checksums, cache keys, identifiers, or integrity verification.","failureModes":["Empty or missing 'text' field returns a validation error","Text exceeding 100,000 characters is rejected","Missing required 'key' field returns an authentication or validation error","Malformed request body returns a 400-level error","Payment failure (insufficient USDC balance) returns a 402 Payment Required"],"whenToPreferThis":"Choose this endpoint when you need a SHA-512/224 digest (a truncated SHA-512 variant offering 224-bit security) and require the output in base64url (URL-safe) encoding specifically. Prefer it over SHA-256 or SHA-512 endpoints when your system is constrained to SHA-512/224, and over hex or base64 siblings when the output must be URL-safe without padding. Use the sandbox endpoint /v1/sandbox/digest-sha512-224-base64url first to avoid charges during development.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-03T06:32:49.634Z","isFirstParty":false,"canonicalSlug":"sha-512-224-digest-base64url-encoded-731d42c4"}