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Onvexia Labelled Address Lookup
x402
Onvexia Labelled Address Lookup is a paid API for AI agents from onvexia.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-17).
Returns labelled blockchain addresses filtered by chain, entity, and category (exchange, bridge, DEX, MEV, staking, mining, sanctioned)
Price / call$0.001
Success—
StatusUnknown
How this service works
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.
Output
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.
Example use cases
AML compliance screening tool
“Get me all sanctioned addresses on Ethereum from Onvexia's label database — I need up to 500 to run through our compliance checks.”
Exchange hot wallet identification
“Look up all addresses labelled as exchanges on the Binance Smart Chain using Onvexia, limit to 200 results, so I can track exchange flows.”
MEV bot forensic investigation
“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.”
Technical details
Endpoint
GEThttps://onvexia.com/v1/labelsWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": [],
"meta": {
"docs": "https://onvexia.com/openapi.json",
"endpoint": "/v1/labels"
}
}
}Tags
x402
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