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QuickNode JSON-RPC Proxy (Multi-Network)
x402
QuickNode JSON-RPC Proxy (Multi-Network) is a paid API for AI agents from x402.quicknode.com, paid per call via x402, $10/call, status unknown (last checked 2026-09-13).
Provides paid JSON-RPC access to a specified blockchain network via QuickNode, accepting standard Ethereum-compatible and network-specific RPC method calls.
Price / call$10
Success—
StatusUnknown
How this service works
Paid blockchain RPC access for the selected network via QuickNode.
Output
A standard JSON-RPC 2.0 response object containing the result of the requested blockchain method call, which may include block data, transaction details, contract return values, account balances, or other network state depending on the method invoked.
Example use cases
Monitor real-time blockchain transaction status
“Check the transaction receipt for this hash on Polygon using QuickNode's RPC — I need to know if my transaction went through and how much gas it used.”
Query smart contract balance across chains
“Use the Ethereum mainnet QuickNode endpoint to call eth_call on my contract address and get the current token balance stored in its state variable.”
Fetch latest block data for network analysis
“Get the most recent block details from the Bitcoin network via QuickNode RPC — I want to see how many transactions were included and what the block size was.”
Technical details
Endpoint
POSThttps://x402.quicknode.com/%7Bnetwork%7DWhen to prefer
Choose this endpoint when you need reliable, low-latency JSON-RPC access to a specific blockchain network and want a pay-per-call model without committing to a subscription. Especially useful for agents that need to query multiple different blockchains (Ethereum, LTC, NEAR, Cosmos, etc.) via a single unified interface. Prefer over free public nodes when reliability and uptime guarantees matter.
Side effects
- Unsupported network identifier in URL path returns 404 or routing error
- Invalid JSON-RPC method name returns JSON-RPC error code -32601 (method not found)
- Malformed params array causes JSON-RPC error -32602 (invalid params)
- Payment not provided or insufficient USDC results in HTTP 402 rejection
- Rate limit exceeded returns 429 too many requests
- Network-specific method called on wrong network returns unsupported method error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| id | — | Request identifier |
| method | string | JSON-RPC method name (e.g., eth_blockNumber, eth_call) |
| params | array | Method parameters |
| jsonrpc | string |
Tags
x402
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