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QuantaFlow x402 API Gateway – Infura Gas API
x402
QuantaFlow x402 API Gateway – Infura Gas API 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 the Infura Gas API via x402 micropayment protocol, returning current gas price estimates for Ethereum and EVM-compatible networks
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 Infura Gas API response, passed through after successful x402 micropayment. Typically includes gas price tiers (slow, standard, fast, instant) with base fee and priority fee values in gwei for the current Ethereum block.
Example use cases
Pre-transaction gas cost check
“Before I submit my Ethereum swap on Uniswap, can you check what the current gas fees look like — specifically the fast and standard tiers?”
DeFi bot gas optimization
“My trading bot needs to know the current base fee and priority fee on Ethereum mainnet so it can set optimal gas for the next block — can you pull that from Infura?”
Gas spike monitoring alert
“Can you fetch the current Ethereum gas prices from Infura and tell me if the fast-tier fee is above 50 gwei right now?”
Technical details
Endpoint
POSThttps://quanta-roan.vercel.app/api/service/infura-gas-api?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time Ethereum or EVM gas price data and are operating in a web3/DeFi agent context that supports x402 micropayment protocol. Prefer this over direct Infura API access when you want pay-per-use billing at $0.01 USDC per call without managing an Infura API key subscription.
Side effects
- Payment failure: insufficient USDC balance or x402 payment header missing/malformed — returns 402 Payment Required
- Invalid path: incorrect sub-path forwarded to Infura upstream — returns 404 or upstream error
- Infura API downtime: upstream unavailable — passes through 5xx error
- Malformed query parameters: upstream rejects request — returns upstream validation error
- Network timeout: slow upstream response exceeds gateway timeout
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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