{"uid":"cap_y8tGrx-n7JOa9yYla6Zk2","slug":"sha-512-256-base64url-digest-of-hex-bytes-9f00f080","name":"SHA-512/256 Base64url Digest of Hex Bytes","description":"Call when an agent needs a sha512-256 digest of hex bytes, encoded as base64url. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64url-rawhex first.","url":"https://agentshelf.syntexa.ch/v1/digest-sha512-256-base64url-rawhex?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":["68656c6c6f"],"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_PyJylinxAlae7HipWCmkc","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 SHA-512/256 hash of raw hex-encoded bytes and returns the result encoded as base64url","exampleAgentPrompt":"Compute the SHA-512/256 hash of these raw hex bytes '48656c6c6f' and give me the result encoded as base64url.","exampleUseCases":[{"title":"Integrity check for binary payload","prompt":"I have a chunk of binary data represented as hex '4d5a9000' — can you hash it with SHA-512/256 and give me the base64url digest so I can verify its integrity later?"},{"title":"Signing pipeline checksum step","prompt":"As part of my signing workflow, I need a SHA-512/256 base64url digest of this hex string: 'deadbeefcafe0123'. Can you compute that for me?"},{"title":"Content fingerprinting for deduplication","prompt":"I want to fingerprint this hex-encoded raw data 'a1b2c3d4e5f6' using SHA-512/256 and get back a compact base64url string I can use as a unique identifier."}],"resultDescription":"Returns the SHA-512/256 cryptographic digest of the input interpreted as raw hex bytes, encoded as a base64url string suitable for use in URLs, tokens, or compact representations.","failureModes":["Invalid or non-hex input text causes a processing error","Input text exceeds 100,000 character limit returns an error","Empty key or text fields are rejected due to minLength:1 constraint","Payment of $0.001 USDC not provided results in 402 Payment Required response","Malformed hex string (odd length or invalid characters) may cause digest failure"],"whenToPreferThis":"Choose this endpoint when you specifically need a SHA-512/256 digest of raw bytes supplied as hex, with the output formatted as base64url — not hex or base64. Prefer the free sandbox endpoint POST /v1/sandbox/digest-sha512-256-base64url-rawhex when available. Use this paid endpoint when the sandbox is unavailable or rate-limited. For plain SHA-256 or MD5 hex digests, use the sibling endpoint instead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:48:37.149Z","isFirstParty":false,"canonicalSlug":"sha-512-256-base64url-digest-of-hex-bytes-9f00f080"}