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Phantom API — Tempo RPC Endpoint
x402
Phantom API — Tempo 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 2026-09-15).
Executes JSON-RPC calls against blockchain networks to retrieve on-chain data and smart contract state across 57+ networks via pay-per-call infrastructure
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 JSON-RPC response object containing the result field populated with the requested on-chain data (e.g. balance in hex wei, block number in hex, contract return value, transaction receipt object), or an error object with code and message if the call fails.
Example use cases
Check wallet ETH balance on-chain
“Look up the current ETH balance for wallet 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe using eth_getBalance with the 'latest' block tag.”
Read smart contract state variable
“Call the Phantom API RPC with eth_call to read the totalSupply of the USDC contract at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum mainnet.”
Fetch latest block number for a network
“Query the Phantom API RPC using eth_blockNumber to get the current block height on the Polygon network right now.”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/tempo/rpcWhen to prefer
Choose this endpoint when you need fast, pay-per-call access to raw blockchain RPC data across a broad range of EVM-compatible networks (57+) without committing to a subscription. Ideal for agents that need occasional or bursty on-chain lookups without managing their own node infrastructure. Prefer over Alchemy or Infura when you want micro-payment (x402/USDC) billing rather than API key subscriptions.
Side effects
- Invalid RPC method name returns error with code -32601 (Method not found)
- Malformed params array causes -32602 (Invalid params) error
- Unsupported network or misconfigured endpoint returns connection error
- Payment failure or insufficient USDC balance results in 402 Payment Required response
- Rate limiting may occur under high call volume
- Smart contract revert returns execution error in result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | |
| params | array |
Tags
x402
Reviews
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