{"uid":"cap_erekwx85N4vTOcj6W983Q","slug":"agentshelf-syntexa-ch-md5-base64url-digest-4727c81d","name":"agentshelf.syntexa.ch MD5 Base64URL Digest","description":"Call when an agent needs a md5 digest of text, encoded as base64url. No network and no LLM. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-base64url first.","url":"https://agentshelf.syntexa.ch/v1/digest-md5-base64url?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":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_vzQhqmtNRLzYpVu11cZSi","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes an MD5 hash of the provided text and returns it encoded as a base64url string, with no external network calls or LLM involvement.","exampleAgentPrompt":"Can you compute the MD5 hash of the text 'Hello, world!' and give it to me encoded as base64url?","exampleUseCases":[{"title":"URL-safe checksum for file deduplication","prompt":"I have the string 'invoice-2024-Q1-final.pdf' and I need its MD5 hash in base64url format so I can use it as a URL-safe cache key — can you compute that for me?"},{"title":"Data integrity fingerprint for API payload","prompt":"Generate an MD5 digest of this JSON string '{\"order_id\":12345,\"amount\":99.99}' encoded as base64url so I can embed it in the request URL as an integrity check."},{"title":"ETag generation for HTTP caching","prompt":"I need a base64url-encoded MD5 hash of the text 'user-profile-data-v3' to use as an ETag value in my HTTP response headers — can you compute it?"}],"resultDescription":"A JSON response containing the base64url-encoded MD5 digest of the input text. The output uses URL-safe base64 characters (replacing + with - and / with _, and omitting padding =), making it safe to embed directly in URLs, filenames, or HTTP headers.","failureModes":["Missing or empty 'text' field returns a 400 validation error","Text exceeding 100,000 characters returns a 400 or 413 error","Missing or invalid API key returns a 401 unauthorized error","Payment of $0.003 USDC not provided or rejected returns a 402 Payment Required","Malformed request body returns a 400 bad request error"],"whenToPreferThis":"Choose this endpoint when you specifically need an MD5 hash encoded in base64url (URL-safe, no padding) rather than hex or plain base64. Use it when the digest will be embedded in a URL, filename, or HTTP header where standard base64 padding characters would be problematic. Prefer the free sandbox endpoint (/v1/sandbox/digest-md5-base64url) for development/testing; use this paid endpoint for production workloads requiring guaranteed availability.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:49:17.217Z","isFirstParty":false,"canonicalSlug":"agentshelf-syntexa-ch-md5-base64url-digest-4727c81d"}