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PennyRail EVM Chain Info
x402
PennyRail EVM Chain Info is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Returns machine-readable EVM blockchain chain information for a given chain identifier via a paid settlement endpoint
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a JSON object containing EVM chain metadata including chain ID, network name, native currency details, RPC endpoint URLs, and block explorer links for the requested chain.
Example use cases
L2 network configuration lookup
“I'm integrating with Arbitrum One and need all the chain metadata — chain ID, RPC endpoints, native currency, and block explorer. Can you pull that up for me?”
Cross-chain dApp network setup
“We're adding support for Base to our dApp and need the official chain parameters. Can you fetch the EVM chain info for Base so I can plug it into our config?”
Verify chain details before deployment
“Before I deploy this contract, can you confirm the chain ID and native currency for the Optimism mainnet so I know I'm targeting the right network?”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/nano/chain.info--evm-chain-infoWhen to prefer
Use this endpoint when you need structured, machine-readable EVM chain metadata (chain ID, RPC URLs, currency info, explorers) for a given network name or identifier, especially within a micropayment-enabled agent workflow using x402 settlement. Prefer this over static chain lists when freshness and pay-per-query pricing suit your use case.
Side effects
- Invalid or unrecognized chain name/identifier returns an error or empty result
- Malformed input string causes a 400-level error
- Payment failure or insufficient balance prevents endpoint access
- Chain not yet indexed or supported returns null or empty object
- Timeout if the upstream chain registry is unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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