{"uid":"cap_p1-bzKysBo4AVVF_vlFKC","slug":"sha3-256-digest-with-base64url-encoding-raw-hex-input-461556db","name":"SHA3-256 Digest with Base64url Encoding (Raw Hex Input)","description":"Call when an agent needs a sha3-256 digest of hex bytes, encoded as base64url. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-base64url-rawhex first.","url":"https://agentshelf.syntexa.ch/v1/digest-sha3-256-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":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_BUyNESJMCiS2xnK4MWT0a","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes a SHA3-256 cryptographic hash of hex-encoded bytes and returns the digest encoded as base64url.","exampleAgentPrompt":"Can you compute the SHA3-256 hash of the hex bytes 'deadbeef0123456789abcdef' and give me the result encoded as base64url?","exampleUseCases":[{"title":"Integrity fingerprint for blockchain data","prompt":"I have a raw transaction payload as hex bytes — '4f6b3a1c...ff' — can you compute its SHA3-256 digest in base64url so I can use it as an integrity fingerprint?"},{"title":"Verify hex payload hash in audit log","prompt":"Our audit system stores SHA3-256 base64url hashes of hex-encoded records. Can you hash this hex string '0a1b2c3d4e5f' with SHA3-256 and give me the base64url output so I can compare it against the stored value?"},{"title":"Generate content-addressable ID from hex data","prompt":"I need a content-addressable identifier for this binary blob stored as hex: 'cafe1234abcd'. Please SHA3-256 hash it and return the result as base64url."}],"resultDescription":"Returns a SHA3-256 cryptographic digest of the input hex bytes, encoded as a base64url string. The output is a compact, URL-safe representation of the hash suitable for use in identifiers, integrity checks, or further cryptographic operations.","failureModes":["Invalid hex string input (non-hex characters) may result in an error or rejected request","Input exceeding maxLength of 100,000 characters will be rejected","Payment failure or insufficient USDC balance returns HTTP 402","Malformed request body returns 400 Bad Request"],"whenToPreferThis":"Choose this endpoint when you specifically need a SHA3-256 hash (not SHA2/MD5/BLAKE) of raw hex-encoded bytes returned in base64url format. It is distinct from endpoints handling plain text or binary input and those returning hex or base64 (non-url) output. Use the free sandbox endpoint POST /v1/sandbox/digest-sha3-256-base64url-rawhex first for testing before paying $0.005 USDC per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:50:22.426Z","isFirstParty":false,"canonicalSlug":"sha3-256-digest-with-base64url-encoding-raw-hex-input-461556db"}