{"uid":"cap_rOaoHyAidtUf5t0lnflT-","slug":"agentstoolshub-evm-address-validator-4e00084f","name":"AgentsToolsHub EVM Address Validator","description":"Validate an EVM address: syntactic checks plus the EIP-55 checksum test (keccak-256 mixed-case). Returns the canonical checksummed form, flags addresses pasted with a broken checksum, and never guesses — an invalid checksum is an error, not a silent fix. Use this when an agent needs to eIP-55 checksum check + canonical form.","url":"https://agentstoolshub.com/api/v1/crypto/address-validate?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"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"Address"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"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_vpTO_TqtbHKU0u2UCopbe","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":"Validates an EVM address with syntactic checks and EIP-55 keccak-256 mixed-case checksum verification, returning the canonical checksummed form or an explicit error on checksum mismatch.","exampleAgentPrompt":"Can you validate this Ethereum address and give me the proper EIP-55 checksummed version: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?","exampleUseCases":[{"title":"Pre-transfer wallet address check","prompt":"Before I send any ETH, validate this address for me and confirm the EIP-55 checksum is correct: 0xAb5801a7D398351b8bE11C439e05C5b3259aec9b"},{"title":"Smart contract address verification","prompt":"I just copied this contract address from a website — can you verify its EIP-55 checksum is intact and give me the canonical form: 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D"},{"title":"Flagging a broken checksum from user input","prompt":"A user submitted this Ethereum address in our form: 0xd8da6bf26964af9d7eed9e03e53415d37aa96045 — does it have a valid EIP-55 checksum, or is it malformed?"}],"resultDescription":"Returns the canonical EIP-55 checksummed Ethereum address if valid, or an explicit error indicating the checksum is broken or the address is syntactically invalid — never silently corrects a bad checksum.","failureModes":["Address fails EIP-55 checksum test — returns error rather than silently correcting","Address is syntactically invalid (wrong length, non-hex characters) — returns validation error","Missing required 'address' query parameter — returns bad request error","Network timeout or service unavailability"],"whenToPreferThis":"Choose this endpoint when you need strict EIP-55 checksum enforcement with no silent correction — it flags broken checksums as errors rather than auto-fixing them, making it ideal for input validation pipelines where a mismatched checksum should block a transaction or alert the user.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-17T12:39:10.308Z","isFirstParty":false,"canonicalSlug":"agentstoolshub-evm-address-validator-4e00084f"}