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QuantaFlow x402 API Gateway – OpenTDB Proxy
x402
QuantaFlow x402 API Gateway – OpenTDB Proxy 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 the Open Trivia Database (OpenTDB) API via an x402 micropayment-gated gateway, 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 OpenTDB API response is passed through after successful payment verification — typically a JSON object containing an array of trivia question objects with fields like question text, correct answer, incorrect answers, category, difficulty, and type (multiple choice or boolean).
Example use cases
Quiz night question generator
“Pull 20 random trivia questions mixed across all categories and difficulties — I'm building a pub quiz and need a variety of questions right now.”
Category-specific trivia for a mobile game
“Get me 15 hard multiple-choice trivia questions specifically from the History category so I can populate a new level in my trivia game.”
True/false trivia pack for kids
“Fetch 10 easy true/false trivia questions from the Animals category — I need them for a kids' quiz tonight.”
Technical details
Endpoint
POSThttps://quanta-roan.vercel.app/api/service/opentdb?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-per-use access to OpenTDB trivia data without managing an API key, want to consume trivia data via x402 micropayments (USDC on-chain), or are building a web3-native application where all external API calls should go through a crypto payment rail. Prefer alternatives (direct OpenTDB API) if you need high-volume access where per-call costs would accumulate significantly.
Side effects
- Payment failure: insufficient USDC balance or x402 payment rejection returns a 402 Payment Required error
- Invalid path: incorrect OpenTDB path segment results in a 404 or upstream error passthrough
- Malformed query parameters: upstream OpenTDB validation errors are passed through as-is
- Rate limiting: OpenTDB upstream may throttle requests even if payment succeeds
- Network error: Vercel-hosted gateway unavailability returns a 5xx error
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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