{"uid":"cap_bcGPoz1F2_Nk3B7L1f4D3","slug":"blake2b-512-base64url-digest-utf-16le-9e09d9ed","name":"Blake2b-512 Base64url Digest (UTF-16LE)","description":"Call when an agent needs a blake2b512 digest of utf16le bytes, encoded as base64url. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base64url-utf16 first.","url":"https://agentshelf.syntexa.ch/v1/digest-blake2b512-base64url-utf16?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":"0.009","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":"$0.009/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.009","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.009","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_8x5_8fBem-XDeEepWHln5","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.009","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes a BLAKE2b-512 keyed or unkeyed digest of a UTF-16LE-encoded text string and returns it as a base64url-encoded string.","exampleAgentPrompt":"Can you give me the BLAKE2b-512 hash of the text 'Hello, World!' encoded as UTF-16LE and return it as base64url? Use the key 'mysecretkey'.","exampleUseCases":[{"title":"Integrity fingerprint for document archive","prompt":"Hash the string 'Contract v2.1 approved by legal team on 2024-06-01' using BLAKE2b-512 over UTF-16LE bytes and give me the result as a base64url string — use 'archivekey' as the BLAKE2b key."},{"title":"Keyed MAC for API message signing","prompt":"I need to sign an API message payload — compute the BLAKE2b-512 MAC of the text 'user_id=42&action=transfer&amount=500' in UTF-16LE encoding with the key 'supersecrethmackey' and return it base64url-encoded."},{"title":"Deduplication hash for multilingual content","prompt":"Generate a BLAKE2b-512 digest of the Japanese text '本日はお日柄もよく' encoded as UTF-16LE and return it as a base64url string so I can use it as a deduplication key — no key needed for this one."}],"resultDescription":"Returns a base64url-encoded string representing the BLAKE2b-512 digest of the UTF-16LE-encoded input text, optionally keyed with the provided key string.","failureModes":["Text or key exceeds maximum length (100,000 or 512 chars) — returns validation error","Empty text or key supplied — rejected by schema minLength constraint","Malformed request body (missing required fields) — 400 bad request","Payment not provided or insufficient USDC — 402 payment required","Service temporarily unavailable — 5xx error"],"whenToPreferThis":"Choose this endpoint when you specifically need a BLAKE2b-512 digest of text treated as UTF-16LE bytes with base64url output encoding — for example when matching a specific hash format used by a .NET or Windows application, or when integrating with systems that require BLAKE2b over UTF-16LE rather than SHA-256 or UTF-8. Prefer the free sandbox endpoint at /v1/sandbox/digest-blake2b512-base64url-utf16 for testing before paying.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:50:00.420Z","isFirstParty":false,"canonicalSlug":"blake2b-512-base64url-digest-utf-16le-9e09d9ed"}