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Toolbelt402 Catalyst Movers — Prediction Market Movers Feed
x402
Toolbelt402 Catalyst Movers — Prediction Market Movers Feed is a paid API for AI agents from toolbelt402.catalystdesk.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-12).
Returns a list of prediction market questions with the largest recent price movements (movers), including current yes-price and 1-day change.
Price / call$0.02
Success—
StatusUnknown
How this service works
Pay-per-call utility API for AI agents — x402, USDC on Base, no API key.
Output
Returns a JSON array of prediction market objects, each containing the market question text, current yes-price (as a decimal probability), and the 1-day price change. Example: [{"question":"...","yes_price":0.42,"change_1d":0.05}].
Example use cases
Daily prediction market briefing
“Give me a quick briefing on which prediction market questions are moving the most today — I want to see yes-prices and how much they've shifted in the last day.”
Tracking political forecast volatility
“Which political prediction market questions are swinging the hardest right now? Show me the top movers with their current prices and 1-day changes.”
Alerting on fast-moving markets
“Check the prediction market movers feed and let me know if any question has moved more than 10 percentage points in the last 24 hours.”
Technical details
Endpoint
GEThttps://toolbelt402.catalystdesk.workers.dev/v1/catalyst/movers?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a real-time ranked list of the most volatile or trending prediction market questions without requiring an API key. It is ideal for agents that want to surface actionable market intelligence quickly, especially in x402-compatible payment flows using USDC on Base. Prefer alternatives if you need historical data, full market depth, or access to a specific named market rather than a ranked movers list.
Side effects
- Payment not sent or insufficient USDC balance — returns HTTP 402 with payment-required details
- Upstream prediction market data source unavailable — may return empty markets array or 5xx error
- Malformed request headers — returns 400 bad request
- Rate limiting or worker overload — returns 429 or 503
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"markets": [
{
"question": "...",
"change_1d": 0.05,
"yes_price": 0.42
}
]
}
}Tags
x402
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