{"uid":"cap_yGGZQnbfbXHGiL4cdIuT4","slug":"blockscout-account-abstraction-paymaster-lookup-05dde7c9","name":"Blockscout Account Abstraction Paymaster Lookup","description":"Explore crypto activities with Blockscout's multichain search. Find transactions, addresses, tokens, and dapps across top blockchain networks — your go-to explorer for cross-chain blockchain data","url":"https://api.blockscout.com/%7Bchain_id%7D/api/v2/proxy/account-abstraction/paymasters/%7Baddress_hash_param%7D","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","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object","properties":{"chain_id":{"type":"string"},"address_hash_param":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"address":{"hash":"string","name":"string","is_scam":true,"metadata":{},"proxy_type":"string","reputation":"string","is_contract":true,"is_verified":true,"public_tags":[{"label":"string","address_hash":"string","display_name":"string"}],"private_tags":[{"label":"string","address_hash":"string","display_name":"string"}],"ens_domain_name":"string","implementations":[{"name":"string","address_hash":"string"}],"watchlist_names":[{"label":"string","display_name":"string"}]},"total_ops":0}},"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_U_AKrMrbwEs9XsxcT_hDR","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":"Retrieve paymaster address details and total operation count for a given paymaster on a specified blockchain via Blockscout's account abstraction proxy","exampleAgentPrompt":"Can you pull up the paymaster details for address 0xE93eca6595fe94091DC1af46aaC2A8b5D7990770 on Base (chain ID 8453) using Blockscout — I want to know if it's verified, how many ops it's sponsored, and any public tags on it?","exampleUseCases":[{"title":"Verify ERC-4337 paymaster legitimacy","prompt":"Check if the paymaster at 0xDFF7FA1077Bce740a6a212b3995990682c0Ba66d on Optimism (chain ID 10) is a verified contract and whether Blockscout has flagged it as a scam."},{"title":"Track paymaster operation volume","prompt":"How many total operations has the paymaster 0xE93eca6595fe94091DC1af46aaC2A8b5D7990770 sponsored on Ethereum mainnet (chain ID 1)? Pull the data from Blockscout."},{"title":"Enrich paymaster address metadata","prompt":"Get me the full metadata for paymaster address 0x4685d9587a7F72Da32dc323bfFF17627aa632C61 on Polygon (chain ID 137) — including its name, ENS domain, proxy type, and any public tags Blockscout has recorded."}],"resultDescription":"Returns a JSON object containing the paymaster's address details (hash, name, scam flag, reputation, contract status, verification status, proxy type, ENS domain, public/private tags, watchlist names, implementations metadata) and the total number of account abstraction operations (total_ops) sponsored by that paymaster on the specified chain.","failureModes":["Invalid or malformed address_hash_param returns an error or empty result","Unsupported chain_id returns a 404 or chain-not-found error","Non-paymaster address returns a result with total_ops of 0 and no paymaster-specific metadata","Rate limiting or payment failure returns a 402 or 429 response","Address not indexed by Blockscout on the specified chain returns empty or null fields"],"whenToPreferThis":"Use this endpoint when you need structured on-chain metadata and account abstraction operation statistics for a specific paymaster address on a particular blockchain supported by Blockscout. It is especially useful when you want to verify a paymaster's legitimacy (scam flag, verification status), understand its reputation and tagging, or count its sponsored operations — all in a single cross-chain-aware call. Prefer this over generic block explorers when you need programmatic, structured JSON data rather than a human-readable UI, or when operating across multiple EVM chains via a unified API.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:49:17.789Z","isFirstParty":false}