{"uid":"cap_D7Zgjd6qewtO2GQs72cFk","slug":"blue-cap-hash-compute-25f1494e","name":"Blue Cap hash.compute","description":"Compute a SHA-256 digest for customer-supplied UTF-8 or base64-decoded bytes through a stable machine endpoint. Returns the reproducible digest through a receipted external execution.","url":"https://machine.soundiq.io/storefront/v1/capabilities/hash.compute/1.0.0/invoke","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input","output"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object"},"type":{"const":"http"},"method":{"const":"POST"},"bodyType":{"const":"json"}}},"output":{"type":"object","required":["type","example"],"properties":{"type":{"const":"json"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_cuPSJDc3RL1eBia4FKE1t","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes a SHA-256 cryptographic digest for UTF-8 text or base64-decoded bytes and returns the reproducible hex digest via a paid API call.","exampleAgentPrompt":"Can you compute the SHA-256 hash of this string for me: 'Hello, world! This is my document content.'","exampleUseCases":[{"title":"Data integrity check before storage","prompt":"Before I store this config file content, compute its SHA-256 digest so I can compare it later and verify nothing has changed: 'server_host=192.168.1.1\\nport=8080\\ndebug=false'"},{"title":"Blockchain or audit trail anchoring","prompt":"I need a SHA-256 fingerprint of this transaction record so I can anchor it in our audit log — the text is: 'txn_id=TXN9921, amount=500.00, user=alice@example.com, timestamp=2024-06-01T10:00:00Z'"},{"title":"Deduplication key generation","prompt":"Generate a SHA-256 hash for this product description so I can use it as a deduplication key in our database: 'Blue wireless noise-cancelling headphones, model XR-700, 30-hour battery life'"}],"resultDescription":"Returns a JSON response containing the SHA-256 hex digest of the supplied input, along with a receipted confirmation of the external execution. The digest is deterministic and reproducible for the same input bytes.","failureModes":["Invalid or malformed body payload returns an error response","Non-UTF-8 or incorrectly base64-encoded input may produce unexpected results or an error","Payment failure (insufficient USDC balance) results in a 402 Payment Required response","Network timeout or service unavailability returns a 5xx error","Missing required fields (input or output objects) returns a 400 validation error"],"whenToPreferThis":"Choose this endpoint when you need a stable, receipted SHA-256 hash computation over a paid API with x402 micropayment support — particularly useful in agentic workflows where a verifiable external receipt of the computation matters, or when integrating with blockchain-adjacent systems that require proof of execution alongside the digest.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:31:06.014Z","isFirstParty":false}