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QuantaFlow x402 API Gateway – rapid-flashapi1
x402
QuantaFlow x402 API Gateway – rapid-flashapi1 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 HTTP requests to a web3/DeFi upstream API 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 response body and content type from the upstream web3/DeFi API are passed through transparently after the x402 micropayment ($0.01 USDC) is confirmed. No transformation is applied to the upstream response.
Example use cases
Fetch DeFi token price on-demand
“Use the QuantaFlow x402 gateway to POST to '/prices' with the body {"token":"USDC","network":"base"} and give me back whatever the upstream DeFi API returns — pay the $0.01 USDC fee automatically.”
Trigger a flash loan API check
“Forward a POST request through the QuantaFlow x402 API gateway to '/flash-loan/check' with body {"asset":"WETH","amount":"10"} — I need the upstream response and I'm fine paying the per-call USDC fee.”
Query web3 wallet analytics endpoint
“Route my GET-style request through the QuantaFlow x402 gateway to the path '/wallet/analytics' with query parameters {"address":"0xABC...123"} and relay back the full upstream response.”
Technical details
Endpoint
POSThttps://quanta-roan.vercel.app/api/service/rapid-flashapi1?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-per-use access to a web3 or DeFi upstream API and want automatic micropayment settlement via the x402 protocol without managing subscriptions or API keys. It is best suited for agents that need to call blockchain/crypto tooling on an infrequent or variable basis at low per-call cost ($0.01 USDC).
Side effects
- Payment failure: insufficient USDC balance causes x402 payment rejection and the request is not forwarded
- Invalid path: upstream returns 404 if the specified path does not exist on the upstream origin
- Malformed body: upstream API may return 400 if the JSON body is invalid
- Upstream unavailability: upstream DeFi/web3 service is down, returning 502 or 503
- Schema mismatch: query or body parameters not accepted by the upstream API
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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