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QuickNode JSON-RPC Proxy — B3 Mainnet
x402
QuickNode JSON-RPC Proxy — B3 Mainnet 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 B3 mainnet blockchain network via QuickNode's infrastructure
Price / call$10
Success—
StatusUnknown
How this service works
JSON-RPC proxy — b3-mainnet
Output
Returns a standard JSON-RPC 2.0 response object containing the result of the requested method (e.g. block number, transaction data, contract return value) or an error object if the call failed.
Example use cases
Example prompt
“Can you call eth_blockNumber on B3 mainnet to get the latest block height?”
Technical details
Endpoint
POSThttps://x402.quicknode.com/b3-mainnet/When to prefer
Use this endpoint when you need direct JSON-RPC access to the B3 mainnet blockchain — for reading on-chain state, querying blocks or transactions, calling smart contracts, or broadcasting transactions on B3. Prefer this over generic alternatives when you specifically need B3 mainnet (not testnet) and want QuickNode's reliable node infrastructure.
Side effects
- Invalid JSON-RPC method name returns error object with code and message
- Malformed params array causes parse or invalid params error
- Payment failure (insufficient USDC) results in 402 Payment Required
- Network congestion or node unavailability may cause timeout or 503
- Unsupported method for B3 network returns method not found error
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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