{"uid":"cap_vj7dbfB10sUzkB2QWYJCo","slug":"blake2b-hash-function-api-a2e052b9","name":"BLAKE2b Hash Function API","description":"Pay-per-call API for AI agents: turn any public web page or PDF into clean, LLM-ready Markdown. $0.002 per call in USDC on Base via x402. No API key, no signup.","url":"https://lin-desk-x402.lindesk.workers.dev/v1/texttools/blake2b?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["input"],"properties":{"input":{"type":"string","description":"Input text; max 100 KiB"},"digest_size":{"type":"string","pattern":"^-?\\d+$","description":"1-64 bytes (default 32)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"op":{"type":"string"},"meta":{"type":"object","properties":{"chars_in":{"type":"integer"},"chars_out":{"type":"integer"},"elapsed_ms":{"type":"integer"}}},"result":{}}}}}}},"responseSchema":{"type":"json","example":{"op":"blake2b","meta":{"chars_in":5,"chars_out":32,"elapsed_ms":0},"result":"46fb7408d4f285228f4af516ea25851b"}},"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_GMuWkhLKj3M3sQzxJcdui","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 BLAKE2b cryptographic hash of any input text, returning a hex digest of configurable length","exampleAgentPrompt":"Compute a 32-byte BLAKE2b hash of the text 'hello world' and give me the hex digest.","exampleUseCases":[{"title":"Deduplicate text content by fingerprint","prompt":"I have this product description text and I want to generate a BLAKE2b hash so I can quickly check if it already exists in my database — can you hash it with a 32-byte digest?"},{"title":"Generate short content checksum","prompt":"Can you compute a 16-byte BLAKE2b hash of this JSON string so I can use it as a compact content fingerprint?"},{"title":"Verify data integrity token","prompt":"Hash this API response payload using BLAKE2b with a 64-byte digest so I can compare it against the checksum the server sent me."}],"resultDescription":"Returns a JSON object with the operation name ('blake2b'), metadata including input character count, output character count, and elapsed milliseconds, plus the hex-encoded BLAKE2b hash digest as a string.","failureModes":["Input text exceeds 100 KiB limit — request rejected","Invalid digest_size value outside 1–64 range — returns error","Non-integer or non-numeric digest_size string — schema validation failure","Missing required 'input' query parameter — 400 bad request","Payment not completed via x402 protocol — 402 Payment Required before response is returned"],"whenToPreferThis":"Choose this endpoint when you need a fast, pay-per-call BLAKE2b hash with no API key or account setup, especially in agentic workflows using x402 micropayments on Base. Prefer BLAKE2b over MD5 or SHA-1 when you need a modern, collision-resistant hash; prefer this endpoint over self-hosted solutions when you want zero-infrastructure overhead in an agent pipeline.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T00:46:41.538Z","isFirstParty":false,"canonicalSlug":"blake2b-hash-function-api-a2e052b9"}