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QuickNode JSON-RPC Proxy — Fuel Sepolia Testnet
x402
QuickNode JSON-RPC Proxy — Fuel Sepolia 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).
Routes JSON-RPC calls to the Fuel blockchain Sepolia testnet via QuickNode's node infrastructure
Price / call$10
Success—
StatusUnknown
How this service works
JSON-RPC proxy — fuel-sepolia
Output
Returns a standard JSON-RPC 2.0 response object containing the result of the requested method call (e.g. block number, transaction receipt, call return value) or an error object with code and message if the call failed.
Example use cases
Example prompt
“Send a JSON-RPC call to the Fuel Sepolia testnet using method 'eth_blockNumber' with an empty params array and request ID 1 — I need to know the current block height on Fuel's test network.”
Technical details
Endpoint
POSThttps://x402.quicknode.com/fuel-sepolia/When to prefer
Use this endpoint when you need to interact specifically with the Fuel Sepolia testnet (not mainnet) via JSON-RPC, such as during development, testing smart contracts, or validating transactions in a test environment without risking real assets. Prefer this over generic Ethereum RPC endpoints when targeting Fuel's FuelVM-specific methods.
Side effects
- Invalid JSON-RPC method name returns error code -32601 (Method not found)
- Malformed params array returns error code -32602 (Invalid params)
- Payment failure or insufficient funds returns HTTP 402
- Network congestion may cause timeouts on heavy RPC calls
- Testnet node downtime returns 503 Service Unavailable
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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