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PennyRail EVM Address Label Lookup
x402
PennyRail EVM Address Label Lookup is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Looks up a human-readable label for an EVM contract address
Price / call$0.002
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
A human-readable label or name identifying the EVM contract address, such as the project name, token name, or protocol associated with that on-chain address.
Example use cases
Identify unknown DeFi contract
“I just saw a transaction to 0xdAC17F958D2ee523a2206206994597C13D831ec7 — can you look up what contract or project that address belongs to?”
Enrich blockchain transaction history
“I have a list of contract addresses from my wallet's transaction history — can you label the first one, 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, so I know what it is?”
Audit smart contract counterparty
“Before I approve this transaction, can you tell me what project or token is behind the contract address 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984?”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/mini/evm.address-label--contract-address-labelWhen to prefer
Use this endpoint when you need to resolve a raw EVM contract address into a human-readable label or name, particularly for enriching transaction data, auditing counterparties, or displaying friendly names in UIs. Prefer this over manual ENS lookups or block explorer scraping when you need a programmatic, pay-per-call approach via the x402 protocol.
Side effects
- Unknown or unlabeled address returns empty or null label
- Invalid EVM address format causes input validation error
- Address exists on-chain but has no known label in the dataset
- Network timeout or service unavailability returns 5xx error
- Payment failure or insufficient USDC balance blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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