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QuantaFlow x402 API Gateway – Infura Mainnet Proxy
x402
QuantaFlow x402 API Gateway – Infura Mainnet Proxy is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Proxies requests to Infura's Ethereum mainnet JSON-RPC endpoint via the x402 micropayment protocol, charging $0.01 USDC per call.
Price / call$0.01
Success—
StatusUnknown
How this service works
Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.
Output
The raw upstream response from Infura's Ethereum mainnet JSON-RPC API is passed through directly, including the JSON-RPC result or error object, HTTP status, and content-type headers, after the x402 micropayment of $0.01 USDC is settled.
Example use cases
Check ETH wallet balance on mainnet
“Look up the current ETH balance for wallet address 0xAbC123... on Ethereum mainnet using the QuantaFlow Infura gateway — pay the micropayment fee and give me the balance in wei.”
Fetch latest Ethereum block data
“Use the QuantaFlow Infura mainnet proxy to call eth_getBlockByNumber for the latest block with full transaction details — I need the block hash, timestamp, and gas used.”
Query smart contract state on mainnet
“Call the eth_call method on Ethereum mainnet via QuantaFlow to read the totalSupply of the token contract at 0xDef456... — use block tag 'latest' and pay the per-call fee.”
Technical details
Endpoint
POSThttps://quanta-roan.vercel.app/api/service/infura-mainnet?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need pay-per-call access to Infura's Ethereum mainnet JSON-RPC without committing to a monthly subscription, and your agent stack already supports the x402 micropayment protocol. Ideal for low-frequency or bursty on-chain queries where per-call billing is more economical than a flat subscription.
Side effects
- Payment failure: insufficient USDC balance or x402 payment not accepted — gateway returns 402 Payment Required
- Invalid JSON-RPC method or params: Infura returns a JSON-RPC error object with code and message
- Network or upstream error: Infura mainnet temporarily unavailable — 502 or 504 from the gateway
- Malformed request body: non-JSON or missing required fields returns a 400 error
- Rate limiting by upstream Infura even after payment — rare but possible under high load
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| body | string | Optional JSON body forwarded to POST requests. |
| path | string | Path below the selected upstream origin. |
| query | object | |
| method | string |
Output
Schema · Response
{
"description": "The upstream response body and content type are passed through after successful payment."
}Tags
x402
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