{"uid":"cap_pNamUzLA1E4OiycGlyyRC","slug":"blake2s-256-base64url-utf-16le-digest-25b535a4","name":"Blake2s-256 / Base64url / UTF-16LE Digest","description":"Call when an agent needs a blake2s256 digest of utf16le bytes, encoded as base64url. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base64url-utf16 first.","url":"https://agentshelf.syntexa.ch/v1/digest-blake2s256-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":"0.001","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_DUjT3XQtdmIObxBgBHskI","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 BLAKE2s-256 hash of text encoded as UTF-16LE bytes, returning the digest as a base64url string, with an optional HMAC key.","exampleAgentPrompt":"Compute a BLAKE2s-256 hash of the text 'Hello, world!' using UTF-16LE encoding and give me the result as base64url — use the key 'mysecretkey'.","exampleUseCases":[{"title":"Fingerprinting document content","prompt":"Hash the text 'Annual report Q4 2024: revenue up 12%.' with BLAKE2s-256 over UTF-16LE bytes and return the digest as base64url so I can use it as a stable content fingerprint."},{"title":"Keyed MAC for API payload signing","prompt":"Generate a keyed BLAKE2s-256 digest of the payload 'user_id=42&action=transfer' using the key 'shared_secret_2024', encoded as base64url — I need it for integrity verification."},{"title":"Deduplication hash for multilingual text","prompt":"Give me a base64url BLAKE2s-256 hash of the UTF-16LE bytes of '日本語のテキストサンプル' so I can deduplicate multilingual strings in my database."}],"resultDescription":"Returns a base64url-encoded BLAKE2s-256 digest computed over the UTF-16LE byte representation of the input text, optionally using the provided key for a keyed (MAC) mode. The result is a compact, URL-safe hash string.","failureModes":["Text or key exceeds allowed length limits (maxLength 100000 for text, 512 for key) — validation error returned","Empty text or key provided (minLength 1) — request rejected","Malformed JSON input — parse error","Payment of $0.001 USDC not received or declined — 402 response"],"whenToPreferThis":"Choose this endpoint when you specifically need a BLAKE2s-256 hash with UTF-16LE byte encoding and base64url output — common for Windows-native text fingerprinting, URL-safe checksums, or when interoperating with systems that default to UTF-16LE (e.g. .NET, Windows APIs). Prefer the free sandbox endpoint /v1/sandbox/digest-blake2s256-base64url-utf16 first; use this paid endpoint when the sandbox is unavailable or rate-limited.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:50:24.451Z","isFirstParty":false,"canonicalSlug":"blake2s-256-base64url-utf-16le-digest-25b535a4"}