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EVM Address Label / Known Address Lookup
x402
EVM Address Label / Known Address Lookup is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Looks up human-readable labels for known EVM blockchain addresses (e.g. exchange names, protocol contracts, wallet tags)
Price / call$0.002
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a structured object containing the human-readable label or name associated with the given EVM address, potentially including entity type (e.g. exchange, protocol, DAO), and confidence or source metadata if available. Returns an empty or null label if the address is not in the known-address database.
Example use cases
Identify exchange deposit address
“I see an outgoing transaction to 0x47ac0Fb4F2D84898e4D9E7b4DaB3C24507a6D503 — can you look up if that's a known address, like a Binance or Coinbase deposit wallet?”
Label smart contract in transaction history
“This contract address 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D keeps showing up in my DeFi transactions — what is it actually called?”
Enrich blockchain analytics report
“I have a list of EVM addresses from a on-chain report and need to know which ones are tagged as known entities — start with 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/mini/evm.address-label--known-address-lookupWhen to prefer
Use this endpoint when you need to resolve or annotate raw EVM/Ethereum addresses with human-readable names from a curated known-address database. Prefer this over on-chain ENS resolution when you want off-chain entity labels (exchanges, protocols, DAOs) rather than user-registered names. Best for blockchain analytics, transaction enrichment, and compliance workflows where identifying the real-world entity behind an address is critical.
Side effects
- Unknown address returns no label or empty result
- Invalid EVM address format causes input validation error
- Address exists but has no known label in the database
- Service unavailable or payment not processed returns 402 or 5xx
- Input object missing required fields returns schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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