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QuantaFlow x402 API Gateway – Alchemy Soneium Mainnet
x402
QuantaFlow x402 API Gateway – Alchemy Soneium 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 2026-10-12).
Proxies requests to the Alchemy Soneium Mainnet RPC/API via a pay-per-call x402 micropayment gateway at $0.01 USDC per request
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 from Alchemy's Soneium Mainnet node, passed through transparently with its original content type (typically JSON-RPC response with result or error fields), after successful x402 micropayment deduction.
Example use cases
Fetch wallet balance on Soneium
“What's the ETH balance of wallet address 0xAbC123... on Soneium mainnet right now? Use the Alchemy Soneium gateway to call eth_getBalance.”
Query recent transaction by hash
“Look up the details of transaction 0xDEF456... on Soneium mainnet — I need the status, gas used, and block number. Use the Alchemy Soneium endpoint.”
Read smart contract state on Soneium
“Call the totalSupply function on the ERC-20 contract at 0x789GHI... deployed on Soneium mainnet and return the result.”
Technical details
Endpoint
POSThttps://quanta-roan.vercel.app/api/service/alchemy-soneium-mainnet?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-per-call access to Alchemy's Soneium Mainnet APIs without managing an Alchemy API key or subscription, particularly useful for agents that make infrequent or variable-volume blockchain queries and want to pay only $0.01 USDC per call via the x402 protocol. Prefer it over direct Alchemy access when operating in a web3-native, wallet-based payment context.
Side effects
- Payment failure: insufficient USDC balance causes 402 response before proxying occurs
- Invalid path: unrecognized Alchemy endpoint path returns upstream 404 or error
- Malformed JSON body: invalid RPC payload causes Alchemy to return a JSON-RPC error
- Network/upstream error: Alchemy node unavailable returns 502 or 503
- Rate limit: Alchemy upstream quota 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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