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QuickNode JSON-RPC Proxy — ARC Testnet
x402
QuickNode JSON-RPC Proxy — ARC Testnet 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 ARC testnet blockchain, enabling agents to query chain state, submit transactions, and interact with smart contracts on ARC testnet.
Price / call$10
Success—
StatusUnknown
How this service works
JSON-RPC proxy — arc-testnet
Output
Returns a standard JSON-RPC 2.0 response object containing the result field with the requested blockchain data (e.g. block number, transaction receipt, contract return value), or an error object with code and message if the call fails.
Example use cases
Example prompt
“Can you call eth_blockNumber on the ARC testnet using QuickNode's RPC proxy and tell me the latest block height?”
Technical details
Endpoint
POSThttps://x402.quicknode.com/arc-testnet/When to prefer
Choose this endpoint when you need to interact specifically with the ARC testnet blockchain via standard JSON-RPC. Prefer this over other QuickNode endpoints when your dApp, test suite, or agent workflow targets ARC testnet specifically. Use for development and testing workflows that require ARC testnet access without managing your own node infrastructure.
Side effects
- Invalid JSON-RPC method name returns error code -32601 (method not found)
- Malformed params array causes -32602 (invalid params) error
- Network or node unavailability returns 503 or timeout
- Payment failure (insufficient USDC or x402 protocol error) blocks the request
- Calling mainnet-only methods on testnet may return unsupported errors
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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