{"uid":"cap_7dnXbT0HDSWodrbiUyW44","slug":"blake2s-256-utf-16le-base64-digest-agentshelf-syntexa-ch-75add1b8","name":"BLAKE2s-256 / UTF-16LE / Base64 Digest (agentshelf.syntexa.ch)","description":"Call when an agent needs a blake2s256 digest of utf16le bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base64-utf16 first.","url":"https://agentshelf.syntexa.ch/v1/digest-blake2s256-base64-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":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_lp5_PFZtkLHq16uwyjTLB","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","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 the UTF-16LE byte encoding of the input text and returns the digest encoded as standard Base64.","exampleAgentPrompt":"Compute the BLAKE2s-256 hash of the text 'Hello, World!' using UTF-16LE byte encoding and give me the result as a Base64 string.","exampleUseCases":[{"title":"Integrity fingerprint for Unicode content","prompt":"I need a BLAKE2s-256 fingerprint of the string 'Invoice #4821 – total $2,500.00' using UTF-16LE bytes, encoded as Base64, so I can verify it hasn't been tampered with."},{"title":"Keyed BLAKE2s digest for message authentication","prompt":"Generate a keyed BLAKE2s-256 hash of the message 'user:alice,role:admin,ts:1700000000' using my secret key 'mySecretKey42', with UTF-16LE encoding and Base64 output."},{"title":"Checksum multilingual text for deduplication","prompt":"Hash the Japanese text '日本語のサンプルテキスト' with BLAKE2s-256 using UTF-16LE encoding and return it as Base64 so I can use it as a deduplication key."}],"resultDescription":"A JSON response containing the Base64-encoded BLAKE2s-256 digest of the input text interpreted as UTF-16LE bytes. The digest is a fixed-length Base64 string (approximately 44 characters) representing the 256-bit hash.","failureModes":["Empty or missing 'text' field returns a validation error","Key exceeds 512-character limit causes rejection","Text exceeds 100,000-character limit causes rejection","Payment of $0.008 USDC not provided or rejected results in HTTP 402","Invalid UTF-16LE conversion for certain unusual Unicode sequences may error"],"whenToPreferThis":"Choose this endpoint when you specifically need a BLAKE2s-256 hash of text whose bytes are interpreted as UTF-16LE (Windows-native Unicode encoding) and the output must be standard Base64. Use over sibling endpoints when the downstream system expects UTF-16LE byte semantics (e.g. compatibility with Windows APIs or .NET hashing) rather than UTF-8. Prefer the unpaid sandbox variant (/v1/sandbox/digest-blake2s256-base64-utf16) for testing; use this paid endpoint for production workloads.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:50:14.358Z","isFirstParty":false,"canonicalSlug":"blake2s-256-utf-16le-base64-digest-agentshelf-syntexa-ch-75add1b8"}