{"uid":"cap_acOFpbEm92bY0nd5-vKrV","slug":"sha-224-hex-digest-5679b603","name":"SHA-224 Hex Digest","description":"Call when an agent needs a sha224 digest of text, encoded as hex. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha224-hex first.","url":"https://agentshelf.syntexa.ch/v1/digest-sha224-hex?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":"0.007","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":"$0.007/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.007","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.007","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_uUxNIYuy0mPleIIGRWB8Q","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.007","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes the SHA-224 cryptographic hash of input text and returns it as a hexadecimal-encoded digest string.","exampleAgentPrompt":"Compute the SHA-224 hex digest of the text 'Hello, world! This is my document content.' — I need the result as a lowercase hex string.","exampleUseCases":[{"title":"Deduplication fingerprint for documents","prompt":"I need a unique fingerprint for this text so I can detect duplicates in my database — can you compute the SHA-224 hex hash of 'The quick brown fox jumps over the lazy dog'?"},{"title":"Integrity checksum for API payloads","prompt":"Generate a SHA-224 hex digest of this JSON payload string so I can attach it as a content checksum before sending it to a third-party service: '{\"user\":\"alice\",\"action\":\"login\",\"timestamp\":1700000000}'"},{"title":"Deterministic ID from user input","prompt":"I want to turn the user's email address 'jane.doe@example.com' into a deterministic 56-character hex ID — compute the SHA-224 hash of that string for me."}],"resultDescription":"Returns a 56-character lowercase hexadecimal string representing the SHA-224 digest of the submitted text. No external network calls or LLM inference are involved — the computation is deterministic and pure.","failureModes":["Empty or missing text field returns a validation error","Text exceeding 100,000 characters is rejected","Missing or invalid API key returns an authentication error","Malformed JSON request body causes a 400 bad request","Payment not provided or insufficient funds returns a 402 Payment Required"],"whenToPreferThis":"Choose this endpoint when you need a compact, deterministic SHA-224 hash of text returned as hex (56 hex characters). Prefer the free sandbox endpoint (/v1/sandbox/digest-sha224-hex) for testing. Use this paid endpoint in production when you need reliable uptime. Choose SHA-224 hex over SHA-224 base64 when downstream systems expect hexadecimal encoding. Prefer SHA-256 or SHA-3 endpoints if a longer or different digest algorithm is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T06:47:54.952Z","isFirstParty":false,"canonicalSlug":"sha-224-hex-digest-5679b603"}