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QuickNode JSON-RPC Proxy — Arbitrum Mainnet
x402
QuickNode JSON-RPC Proxy — Arbitrum Mainnet is a paid API for AI agents from x402.quicknode.com, paid per call via x402, $10/call, status unknown (last checked 2026-09-14).
Proxies JSON-RPC calls to the Arbitrum One mainnet blockchain, enabling smart contract interactions, balance lookups, transaction submission, and block data retrieval.
Price / call$10
Success—
StatusUnknown
How this service works
JSON-RPC proxy — arbitrum-mainnet
Output
A standard JSON-RPC 2.0 response object containing the result field with the requested blockchain data (e.g. balance in wei, block object, transaction receipt, contract return data) or an error object with code and message if the call fails.
Example use cases
Example prompt
“Call eth_getBalance on Arbitrum mainnet for address 0xAbC123...def456 using JSON-RPC 2.0 and tell me the current ETH balance.”
Technical details
Endpoint
POSThttps://x402.quicknode.com/arbitrum-mainnet/When to prefer
Choose this endpoint when you need programmatic, pay-per-call access to the Arbitrum One mainnet via standard JSON-RPC without managing your own node infrastructure or API key subscriptions. Ideal for agents that need on-demand blockchain queries billed per call via x402 micropayments.
Side effects
- Invalid JSON-RPC method name returns error code -32601 Method not found
- Malformed params array causes -32602 Invalid params error
- Payment of $10 USDC not provided results in 402 Payment Required response
- Network congestion or node unavailability returns 503 or timeout
- Invalid contract ABI encoding in eth_call params returns execution revert error
- Requesting a pruned historical block beyond node retention returns null or error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| id | — | Request identifier |
| methodrequired | string | JSON-RPC method name (e.g., eth_blockNumber, eth_call) |
| params | array | Method parameters |
| jsonrpcrequired | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| id | — | |
| error | object | |
| result | — | RPC result (type varies by method) |
| jsonrpc | string |
Tags
x402
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