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QuantaFlow x402 API Gateway — Alchemy Linea Mainnet
x402
QuantaFlow x402 API Gateway — Alchemy Linea Mainnet is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Proxies requests to Alchemy's Linea 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 JSON-RPC response body from Alchemy's Linea Mainnet endpoint, passed through with its original content type after the $0.01 USDC x402 micropayment is settled.
Example use cases
Smart contract state read on Linea
“Call the eth_call method on Linea mainnet to read the current token balance of address 0xABC...123 from contract 0xDEF...456 — use the Alchemy Linea gateway and handle the micropayment automatically.”
Latest Linea transaction lookup
“Fetch the details of transaction 0x789...abc on Linea mainnet via Alchemy RPC so I can see its status and gas used.”
Real-time Linea gas price check
“Get the current gas price on Linea mainnet right now using the Alchemy endpoint — I need it to estimate fees before submitting a transaction.”
Technical details
Endpoint
POSThttps://quanta-roan.vercel.app/api/service/alchemy-linea-mainnet?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-per-call access to Alchemy's Linea Mainnet RPC without managing an Alchemy API key subscription, and your agent supports the x402 micropayment protocol for automatic per-request USDC settlement.
Side effects
- Payment failure — insufficient USDC balance or x402 payment not accepted, returns 402 Payment Required
- Invalid path — unsupported or malformed RPC path returns an upstream error
- Alchemy upstream error — Linea node unavailable or RPC method not supported returns 5xx or JSON-RPC error
- Malformed body — invalid JSON body causes upstream parse error
- Rate limit — Alchemy upstream rate limit exceeded returns 429
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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