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QuickNode: JSON-RPC proxy — polygon-mainnet
x402
QuickNode: JSON-RPC proxy — polygon-mainnet is a paid API for AI agents from x402.quicknode.com, paid per call via x402, $10/call, status unknown (last checked 2026-09-13).
Provides low-latency JSON-RPC access to the Polygon (Matic) mainnet for sending transactions, querying blockchain state, and interacting with smart contracts.
Price / call$10
Success—
StatusUnknown
How this service works
Low-latency RPC access to the Polygon (Matic) mainnet for sending transactions, querying state, and interacting with smart contracts.
Output
A JSON-RPC 2.0 response object containing the 'result' field with the requested data (e.g. block info, balance in hex wei, transaction receipt, contract return value) or an 'error' object with code and message if the call failed.
Example use cases
Monitor wallet balance across DeFi positions
“What's the current MATIC balance for my wallet 0x742d35Cc6634C0532925a3b844Bc9e7595f42bE on Polygon? I need to know if I have enough to cover my next swap on QuickSwap.”
Track pending transaction confirmation status
“Can you check if my transaction with hash 0x9f8c7d4e2a1b3c5f6e7d8a9b0c1d2e3f4a5b6c7d has been confirmed on Polygon mainnet yet? I'm waiting to see if my token transfer went through.”
Query ERC-20 token balances for portfolio tracking
“I need to check my USDC and USDT balances on the Polygon network for these contract addresses: 0x2791Bca1f2de4661ED88A30C99a7a9449Aa84174 and 0xc2132D05D31c914a87C6611C10748AEb04B58e8F. Tell me what I'm holding.”
Technical details
Endpoint
POSThttps://x402.quicknode.com/polygon-mainnetWhen to prefer
Choose this endpoint when you specifically need to interact with the Polygon (Matic) mainnet — for sending MATIC/ERC-20 transactions, reading DeFi contract state, or querying Polygon-native dApps. Prefer this over Ethereum mainnet endpoints when gas costs need to be low or when the target contracts are deployed on Polygon. Use sibling endpoints for other networks.
Side effects
- Invalid JSON-RPC method name returns error code -32601 (method not found)
- Malformed params array returns error code -32602 (invalid params)
- Transaction broadcast fails if nonce or gas is incorrect, returning execution reverted error
- Rate limiting or payment failure may return 402 or 429 status
- Network congestion may cause delayed transaction inclusion
- Contract call to non-existent address returns empty result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| id | — | Request identifier |
| method | string | JSON-RPC method name (e.g., eth_blockNumber, eth_call) |
| params | array | Method parameters |
| jsonrpc | string |
Tags
x402
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