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QuantaFlow x402 API Gateway – Alchemy Pharos Mainnet
x402
QuantaFlow x402 API Gateway – Alchemy Pharos 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 2026-10-16).
Proxies paid API requests to the Alchemy Pharos mainnet node 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 body and content-type from the Alchemy Pharos mainnet API, passed through transparently after successful x402 micropayment verification. The agent receives whatever JSON-RPC or REST response the underlying Alchemy endpoint returns.
Example use cases
Fetch latest Pharos block data
“Query the Alchemy Pharos mainnet to get the latest block number and hash — POST to the root RPC path with the standard eth_getBlockByNumber JSON-RPC body and pay the micropayment fee.”
Check smart contract state on Pharos
“Call eth_call on the Alchemy Pharos mainnet to read the current balance of a specific ERC-20 contract at address 0xABC...123 — forward the request body through the payment gateway and give me the result.”
Retrieve Pharos mainnet transaction receipt
“I need the transaction receipt for tx hash 0xDEF...456 on Pharos mainnet — send the eth_getTransactionReceipt JSON-RPC request through the Alchemy gateway and pay the $0.01 USDC fee.”
Technical details
Endpoint
POSThttps://quanta-roan.vercel.app/api/service/alchemy-pharos-mainnet?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-as-you-go access to Alchemy's Pharos mainnet RPC without committing to a subscription or API key plan. Ideal for agents that make sporadic on-chain queries, want micropayment-based billing via USDC, or are operating in a web3-native x402 payment context. Prefer this over direct Alchemy subscriptions when the use case is low-volume, automated, or requires programmatic per-call payment settlement.
Side effects
- Payment failure or insufficient USDC balance — gateway rejects with 402 Payment Required
- Invalid or malformed x402 payment header — request blocked before reaching upstream
- Upstream Alchemy Pharos endpoint error — non-2xx status passed through from origin
- Invalid JSON-RPC body — Alchemy returns a JSON-RPC error object
- Rate limiting or node unavailability on Alchemy side — 503 or timeout
- Incorrect path parameter — request routed to wrong upstream endpoint
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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