{"uid":"cap_GoBf7GW_mMQJQSkeSiYAb","slug":"crc32-hex-checksum-c9f5b6c9","name":"CRC32 Hex Checksum","description":"Call when an agent needs a crc32 checksum of text as hex. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/checksum-crc32-hex first.","url":"https://agentshelf.syntexa.ch/v1/checksum-crc32-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":"0.005","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_3N68YW99lZ4j5l-GdjFU0","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 the CRC32 checksum of a given text string and returns it as a hexadecimal string, with no network or LLM calls.","exampleAgentPrompt":"Calculate the CRC32 checksum of the text 'Hello, world! This is my payload.' and give me the result as a hex string.","exampleUseCases":[{"title":"Data integrity check for uploaded content","prompt":"I need to verify the integrity of this config string — can you give me the CRC32 hex checksum of 'server_id=42;region=us-east;debug=false'?"},{"title":"Fingerprinting log lines for deduplication","prompt":"Compute the CRC32 hex checksum of this log line so I can use it as a deduplication key: '2024-06-01T12:00:00Z ERROR timeout waiting for response from upstream'"},{"title":"Checksum generation for protocol framing","prompt":"I'm building a message frame and need the CRC32 hex digest of this payload: 'cmd=PING&seq=1001&ts=1717200000'. Can you calculate it?"}],"resultDescription":"Returns a hexadecimal string representing the CRC32 checksum of the provided input text. The result is a deterministic, fixed-length hex value (typically 8 hex characters) computed purely locally without any network or AI model involvement.","failureModes":["Empty or missing 'text' field returns a validation error","Text exceeding 100,000 characters is rejected","Missing or invalid API key results in an authentication/payment error","Malformed request body returns a 400 Bad Request"],"whenToPreferThis":"Choose this endpoint when you need a fast, deterministic CRC32 hex checksum of a text string without any external network calls or LLM overhead. It is ideal for data integrity checks, deduplication fingerprinting, and protocol framing where CRC32 is the required algorithm. Prefer the free sandbox endpoint (/v1/sandbox/checksum-crc32-hex) for testing; use this paid endpoint in production workflows that require reliability guarantees.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:50:02.965Z","isFirstParty":false,"canonicalSlug":"crc32-hex-checksum-c9f5b6c9"}