{"uid":"cap_ZbHJR_RmHrbAqWELyHbxZ","slug":"onvexia-labelled-address-lookup-0ce03271","name":"Onvexia Labelled Address Lookup","description":"Thousands of assets across ten chains, half a million analysed documents, labelled addresses and supply-age history reaching back to 2008 — fused into one reading per asset. REST, SQL, GraphQL and MCP.","url":"https://onvexia.com/v1/labels","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"type":"object","properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"chain":{"type":"string"},"limit":{"type":"string","description":"Max 500"},"entity":{"type":"string"},"category":{"type":"string","description":"exchange|bridge|dex|mev|staking|mining|sanctioned"}}}},"additionalProperties":false},"output":{"type":"object","properties":{"example":{"type":"object","properties":{"data":{"description":"The result — an array or object depending on the endpoint. An empty array means no rows in range, never that the metric is unsupported."},"meta":{"type":"object","description":"Coverage and provenance: what was measured, and what is not held. A null label means no label is held, never that the subject is safe."}}}}}}},"responseSchema":{"type":"json","example":{"data":[],"meta":{"docs":"https://onvexia.com/openapi.json","endpoint":"/v1/labels"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_kdO6rzy20yj8JLdG0Pv88","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns labelled blockchain addresses filtered by chain, entity, and category (exchange, bridge, DEX, MEV, staking, mining, sanctioned)","exampleAgentPrompt":"Pull all Onvexia-labelled sanctioned addresses on Ethereum, up to 500 results, so I can screen them for compliance.","exampleUseCases":[{"title":"AML compliance screening tool","prompt":"Get me all sanctioned addresses on Ethereum from Onvexia's label database — I need up to 500 to run through our compliance checks."},{"title":"Exchange hot wallet identification","prompt":"Look up all addresses labelled as exchanges on the Binance Smart Chain using Onvexia, limit to 200 results, so I can track exchange flows."},{"title":"MEV bot forensic investigation","prompt":"Retrieve Onvexia's labelled MEV addresses on Ethereum — I'm investigating front-running activity and need to see which addresses are classified as MEV operators."}],"resultDescription":"A JSON object containing a `data` array of labelled address records (address, entity name, category, chain) and a `meta` object with coverage and provenance information including a link to the OpenAPI docs. An empty array means no matching labels are held, not that the addresses are unknown or safe.","failureModes":["Invalid chain identifier returns empty data array","Unsupported category enum value may return no results or an error","Limit exceeding 500 may be rejected or capped","Payment failure (402) if x402 USDC micropayment is not fulfilled","No label held for a given address returns empty array, not an error","Rate limiting if too many requests are made in rapid succession"],"whenToPreferThis":"Use this endpoint when you need to look up or filter known blockchain address labels by entity name, category (exchange, bridge, DEX, MEV, staking, mining, sanctioned), or chain. Prefer it over generic on-chain data providers when you need pre-classified, entity-resolved labels with provenance metadata rather than raw transaction data. Particularly suited for compliance, forensic, or analytics workflows where knowing who controls an address matters more than raw balance or transaction history.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-19T12:45:11.146Z","isFirstParty":false}