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QuickNode JSON-RPC Proxy — Blast Sepolia
x402
QuickNode JSON-RPC Proxy — Blast Sepolia 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 Blast Sepolia testnet via QuickNode's node infrastructure
Price / call$10
Success—
StatusUnknown
How this service works
JSON-RPC proxy — blast-sepolia
Output
Returns a standard JSON-RPC 2.0 response object containing the result of the requested method (e.g. block number, balance in hex wei, transaction receipt object, logs array, or error object if the call fails).
Example use cases
Example prompt
“What's the current block number on Blast Sepolia? Use the QuickNode JSON-RPC proxy and call eth_blockNumber with jsonrpc 2.0 and request id 1.”
Technical details
Endpoint
POSThttps://x402.quicknode.com/blast-sepolia/When to prefer
Use this endpoint when you need to interact with the Blast Sepolia testnet specifically — for testing Blast L2 smart contracts, querying testnet state, or broadcasting test transactions without real funds. Prefer this over Blast mainnet endpoints during development and testing. QuickNode's infrastructure ensures low-latency, high-reliability node access without running your own node.
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 JSON-RPC internal error -32603
- Payment not provided or insufficient returns HTTP 402 payment required
- Rate limiting may return HTTP 429 too many requests
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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