{"id":"0de4398c-7b64-417a-b2c3-eb9ae2d56939","shortId":"q59hQW","kind":"x402","title":"Look up labels/tags for wallet or contract addresses on Base via x402 micropayment.","tagline":"Look up labels/tags for wallet or contract addresses on Base via x402 micropayment.","description":"This endpoint from Erudite Intelligence LLC provides crypto address labeling (\"Crypto data intelligence\") on the Base network. You POST a wallet or contract address and receive label/tag data associated with that address. The endpoint is gated behind the x402 payment protocol (v2), returning a 402 challenge until payment is provided.\n\nPayment is accepted in two ways: USDC on Base (eip155:8453) at 0.01 USDC per call, or USDT on Tron (tron:728126428) at 0.01 USDT per call. The x402 facilitator is Coinbase CDP for the Base option. The provider is Erudite Intelligence LLC, a FinCEN MSB-registered entity. The Bridge facilitator at bridge.eruditepay.com supports 20 blockchains and handles verify/settle steps.\n\nDocumentation is sparse — the endpoint description is simply \"Crypto data intelligence\" and the example output is a generic `{\"success\": true, \"data\": {}}` stub. There is no detailed schema for what fields appear inside `data`, no enumeration of supported label types, and the docs link (docs.eruditepay.com) was not reachable in the crawl. The input schema requires a JSON body with an `address` string field described as \"Wallet or contract address.\" The endpoint path includes `/base/` suggesting it is scoped to the Base L2 chain, though this is inferred from the URL structure rather than explicit documentation.","tags":[],"capabilities":["address-labeling","blockchain-intelligence","base-chain","x402-payment","usdc-payment","tron-usdt-payment","wallet-lookup","contract-lookup"],"categories":["crypto","blockchain-analytics"],"synonyms":["address label","wallet tag","address intelligence","blockchain address lookup","crypto address annotation","on-chain entity identification","wallet labeling","address tagging"],"warnings":["Output schema is a generic stub — no documentation on what fields appear inside 'data'","docs.eruditepay.com was not crawled/reachable; /docs on bridge returns 404","Endpoint description is vague ('Crypto data intelligence') — actual label taxonomy unknown","Scope appears limited to Base chain based on URL path; no confirmation of multi-chain label coverage at this endpoint"],"endpointUrl":"https://bridge.eruditepay.com/v1/base/address/label","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"8000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}]},"qualityScore":"0.450","qualityRationale":"The endpoint is live (402 challenge captured) with a clear input schema and pricing, but the output schema is a stub with no detail on what label data is actually returned. No external documentation was reachable. The description 'Crypto data intelligence' is 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'0.01':89,100 '20':132 '402':71 '728126428':98 '8453':87 'accept':79 'address':8,21,35,50,58,197,205 'address intelligence' 'address label' 'address tagging' 'address-labeling' 'appear':168 'associ':55 'base':10,23,42,85,112,217 'base-chain' 'behind':63 'blockchain':133 'blockchain address lookup' 'blockchain-intelligence' 'bodi':194 'bridg':127 'bridge.eruditepay.com':130 'call':92,103 'cdp':109 'chain':219 'challeng':72 'coinbas':108 'contract':7,20,49,204 'contract-lookup' 'crawl':187 'crypto':34,37,146 'crypto address annotation' 'data':38,54,147,158,170 'describ':200 'descript':143 'detail':163 'doc':179 'docs.eruditepay.com':181 'document':138,231 'eip155':86 'endpoint':28,60,142,207 'entiti':125 'enumer':172 'erudit':30,117 'exampl':151 'explicit':230 'facilit':106,128 'field':167,199 'fincen':121 'gate':62 'generic':155 'handl':135 'includ':209 'infer':223 'input':189 'insid':169 'intellig':31,39,118,148 'json':193 'l2':218 'label':36,175 'label/tag':53 'labels/tags':3,16 'link':180 'llc':32,119 'look':1,14 'micropay':13,26 'msb':123 'msb-regist':122 'network':43 'on-chain entity identification' 'option':113 'output':152 'path':208 'payment':66,74,77 'per':91,102 'post':45 'protocol':67 'provid':33,76,115 'rather':228 'reachabl':184 'receiv':52 'regist':124 'requir':191 'return':69 'schema':164,190 'scope':214 'simpli':145 'spars':140 'step':137 'string':198 'structur':227 'stub':159 'success':156 'suggest':211 'support':131,174 'though':220 'tron':96,97 'tron-usdt-payment' 'true':157 'two':81 'type':176 'url':226 'usdc':83,90 'usdc-payment' 'usdt':94,101 'v2':68 'verify/settle':136 'via':11,24 'wallet':5,18,47,202 'wallet labeling' 'wallet tag' 'wallet-lookup' 'way':82 'x402':12,25,65,105 'x402-payment'","prices":[{"id":"6815724b-88ee-41f8-8fed-4b1c4b0ba9ba","listingId":"0de4398c-7b64-417a-b2c3-eb9ae2d56939","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"8000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:37.204Z"}],"sources":[{"listingId":"0de4398c-7b64-417a-b2c3-eb9ae2d56939","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/address/label","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:37.204Z","lastSeenAt":"2026-04-22T05:32:29.411Z"}],"details":{"listingId":"0de4398c-7b64-417a-b2c3-eb9ae2d56939","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/address/label \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -d '{\"address\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\"}'","exampleRequest":{"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"exampleResponse":{"data":{},"success":true},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns x402 v2 challenge with USDC on Base (amount 10000 = $0.01) and USDT on Tron (amount 10000 = $0.01)","source_url":"https://bridge.eruditepay.com/v1/base/address/label"},{"claim":"Provider is Erudite Intelligence LLC, FinCEN MSB registered (BSA ID 31000324258137)","source_url":"https://bridge.eruditepay.com"},{"claim":"Bridge facilitator supports 20 blockchains with 0.5% per settlement fee","source_url":"https://bridge.eruditepay.com"},{"claim":"Input requires JSON body with 'address' field described as 'Wallet or contract address'","source_url":"https://bridge.eruditepay.com/v1/base/address/label"},{"claim":"x402 facilitator for Base payment is Coinbase CDP (api.cdp.coinbase.com)","source_url":"https://bridge.eruditepay.com/v1/base/address/label"}],"useCases":["Identify known entities (exchanges, protocols, scammers) behind a Base address before transacting","Enrich on-chain transaction data with human-readable labels for compliance dashboards","Agent-driven wallet screening: automatically label counterparty addresses during trade execution","Build address books that auto-tag new addresses encountered in DeFi interactions","Power AML/KYC workflows by resolving addresses to known entity labels"],"bestFor":["AI agents that need per-call address intelligence without API key management","Compliance and risk teams screening Base wallet addresses","On-chain analytics pipelines that need entity resolution for addresses"],"notFor":["Bulk labeling of millions of addresses (per-call micropayment model would be expensive at scale)","Chains other than Base (this specific endpoint is scoped to /base/)","Detailed transaction history or balance queries — this is label/tag data only"],"kindDetails":{},"updatedAt":"2026-04-22T02:09:11.899Z"}}