{"uid":"cap_bj4AAqLOqGV_AjQE_vIq6","slug":"crc32c-checksum-hex-agentshelf-syntexa-ch-b3580c31","name":"CRC32C Checksum (Hex) — agentshelf.syntexa.ch","description":"Call when an agent needs a crc32c checksum of text as hex. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/checksum-crc32c-hex first.","url":"https://agentshelf.syntexa.ch/v1/checksum-crc32c-hex?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":"0.007","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":"$0.007/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.007","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.007","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_q1xuGkfmSv6u9LxqTvr1m","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.007","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes a CRC32C checksum of the provided text and returns it as a hexadecimal string, with no network calls or LLM involved.","exampleAgentPrompt":"Can you compute the CRC32C checksum of the text 'Hello, world! This is a test payload.' and give me the result as a hex string?","exampleUseCases":[{"title":"File chunk integrity verification","prompt":"I need to verify the integrity of this chunk of data before uploading it — can you compute the CRC32C hex checksum of 'chunk_data: 4f8a92bc...' so I can store it alongside the file?"},{"title":"Deterministic cache key generation","prompt":"Generate a CRC32C hex checksum for the string 'user_id=42&query=recent_orders&page=1' so I can use it as a short cache key in my system."},{"title":"Payload fingerprinting for deduplication","prompt":"I have this log line: '2024-06-01T12:00:00Z ERROR connection refused to db-host:5432' — what's its CRC32C checksum in hex so I can deduplicate repeated log entries?"}],"resultDescription":"Returns a hexadecimal string representing the CRC32C checksum of the submitted text. The computation is done locally without any external network requests or AI model inference, ensuring deterministic and fast results.","failureModes":["Empty or missing 'text' field returns a validation error","Text exceeding 100,000 characters is rejected","Missing or invalid API key results in authentication failure","Payment failure (insufficient USDC balance) blocks the request"],"whenToPreferThis":"Choose this endpoint when you need a deterministic CRC32C checksum in hex format without relying on local libraries or runtime dependencies. It is ideal for agents operating in sandboxed environments without access to native hashing libraries, or when consistent cross-platform CRC32C computation is needed as a microservice call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:50:23.029Z","isFirstParty":false,"canonicalSlug":"crc32c-checksum-hex-agentshelf-syntexa-ch-b3580c31"}