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QuickNode JSON-RPC Proxy — Starknet Sepolia Testnet
x402
QuickNode JSON-RPC Proxy — Starknet Sepolia Testnet is a paid API for AI agents from x402.quicknode.com, paid per call via x402, $10/call, status unknown (last checked 2026-09-15).
Proxies JSON-RPC requests to a QuickNode Starknet Sepolia testnet node, enabling blockchain reads and writes on the strk-sepolia network
Price / call$10
Success—
StatusUnknown
How this service works
JSON-RPC proxy — strk-sepolia
Output
A standard JSON-RPC 2.0 response object containing the result of the requested Starknet Sepolia RPC method call — such as block data, transaction receipts, contract call output, account nonce, or balance — along with the matching request id and any error details if the call failed.
Example use cases
Example prompt
“Can you call starknet_getBlockWithTxHashes with block tag 'latest' on the Starknet Sepolia testnet using QuickNode?”
Technical details
Endpoint
POSThttps://x402.quicknode.com/strk-sepolia/When to prefer
Use this endpoint when you need to interact with the Starknet Sepolia testnet specifically — for testing Starknet smart contracts, querying testnet state, or broadcasting testnet transactions — and you want a reliable, pay-per-call QuickNode-backed RPC node without managing infrastructure. Prefer this over mainnet endpoints when testing or developing Starknet applications.
Side effects
- Invalid JSON-RPC method name returns error code -32601 method not found
- Malformed params array returns error code -32602 invalid params
- Network or node unavailability returns HTTP 503 or timeout
- Payment failure returns HTTP 402 payment required
- Unsupported method for Starknet returns RPC error
- Invalid transaction data returns execution error from the node
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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