{"uid":"cap_E8YMzn-C1_zW-VZhCqCp7","slug":"adler-32-checksum-generator-99bf2412","name":"Adler-32 Checksum Generator","description":"Adler-32 checksum (as used by zlib) over the input payload. Faster than CRC-32 but weaker for short inputs. Returns the checksum as an unsigned integer and 8-digit hex. Non-cryptographic.","url":"https://checksum.openverbs.com/v1/adler32","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["data"],"properties":{"data":{"type":"string","maxLength":5000000,"description":"Input payload."},"encoding":{"enum":["utf8","hex","base64"],"type":"string","description":"How to decode `data`. Default utf8."}},"additionalProperties":false},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_vHZCsu3ZpYQGLmzbNEtkJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes an Adler-32 checksum for a given input payload, supporting UTF-8, hex, and base64 encoded data.","exampleAgentPrompt":"Can you compute the Adler-32 checksum of this UTF-8 string for me: 'Hello, world! This is my payload.' — I need to verify its integrity.","exampleUseCases":[{"title":"File integrity check before upload","prompt":"Before I upload this document, calculate the Adler-32 checksum of its base64-encoded content so I can verify it hasn't been corrupted in transit."},{"title":"Detect data tampering in pipeline","prompt":"I'm receiving data from an external source — can you run an Adler-32 checksum on this hex-encoded payload so I can compare it against the expected value and confirm nothing was altered?"},{"title":"Validate stored data consistency","prompt":"I stored this UTF-8 text blob earlier and I want to make sure it's still intact — generate an Adler-32 checksum for 'user_profile_backup_20240101_raw_data_string' so I can compare it to my original."}],"resultDescription":"Returns the computed Adler-32 checksum value for the provided input payload. The checksum is a 32-bit integer derived from the input data, usable for fast integrity verification and corruption detection.","failureModes":["Missing required 'data' field returns a validation error","Data exceeding 5,000,000 character limit is rejected","Invalid encoding value (not utf8/hex/base64) causes a schema error","Malformed base64 or hex input causes a decoding error","Payment failure via x402 protocol results in a 402 response"],"whenToPreferThis":"Choose this endpoint when you need a fast, lightweight Adler-32 checksum specifically — as opposed to MD5, SHA-256, or CRC32. Adler-32 is ideal for quick integrity checks on streaming or bulk data where speed matters more than cryptographic strength. Prefer this when your system already uses Adler-32 as part of a protocol (e.g. zlib) or when you need a paid, auditable checksum API with support for multiple encodings.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:34:25.654Z","isFirstParty":false}