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Phantom API — Polygon RPC Endpoint
x402
Phantom API — Polygon RPC Endpoint is a paid API for AI agents from phantom-api-omega.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Executes JSON-RPC calls against the Polygon blockchain network, enabling on-chain data retrieval and smart contract interactions via a pay-per-call model.
Price / call$0.01
Success—
StatusUnknown
How this service works
Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.
Output
Returns a standard JSON-RPC response object containing the result field with on-chain data such as block information, account balances, transaction receipts, contract return values, or event logs — depending on the method called. Errors are returned as JSON-RPC error objects with code and message fields.
Example use cases
Check DeFi wallet balance on Polygon
“Can you check the MATIC balance for wallet 0x1234567890abcdef1234567890abcdef12345678 on Polygon right now?”
Read smart contract state on Polygon
“Call the totalSupply function on the USDC contract at 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 on Polygon — I want to know how many tokens are in circulation.”
Fetch latest Polygon block data
“Get the details of the most recent block on Polygon, including the transaction count and miner — use eth_getBlockByNumber with 'latest'.”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/polygon/rpcWhen to prefer
Choose this endpoint when you need direct, low-latency JSON-RPC access to the Polygon (MATIC) network specifically, and want pay-per-call pricing without committing to a subscription. Ideal for agents that need occasional or burst Polygon queries without managing API keys or monthly plans. Prefer over Ethereum RPC endpoints when the target contracts or wallets are on Polygon mainnet.
Side effects
- Invalid JSON-RPC method name returns error code -32601 (method not found)
- Malformed params array causes -32602 (invalid params) error
- Network congestion or node unavailability may cause timeouts
- Calling a non-existent contract address returns empty result
- Payment failure via x402 protocol blocks request execution
- Unsupported Polygon-specific methods may not be available
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | |
| params | array |
Tags
x402
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