# Catalyst Desk - Top Movers

> Catalyst Desk - Top Movers is a paid API for AI agents from catalyst-desk.catalystdesk.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-17).

Returns a ranked list of the fastest-moving prediction markets, including prices, volume, liquidity, and weekly price change.

## Facts

- Endpoint: GET https://catalyst-desk.catalystdesk.workers.dev/v1/movers?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/catalyst-desk-top-movers-bb4855ae
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aFNa07jh4ghNra6gb1uMm

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability catalyst-desk-top-movers-bb4855ae
```

Example prompt: What are the top-moving prediction markets right now — show me which events are seeing the biggest price swings and volume this week?

## When to prefer this

Choose this endpoint when you need a real-time ranked snapshot of the most active and fast-moving prediction markets, particularly for surfacing trending events by volume and price momentum. Prefer this over generic financial APIs when the goal is specifically prediction-market intelligence (e.g. Polymarket events), and over manual scraping when you need structured, ranked data with liquidity and price-change signals in a single call.

## Known failure modes

- Payment not settled — x402 micropayment of $0.02 USDC must succeed before data is returned
- Empty or stale data if upstream Polymarket data is temporarily unavailable
- Rate limiting if requests exceed allowed frequency
- Network timeout from the Cloudflare Workers edge environment

## How this service works

Polymarket intelligence for AI agents. Free pulse; paid movers/brief via x402 USDC on Base.

## Output

A JSON array of ranked prediction market movers, each containing the market question, Polymarket URL, current yes price, 24-hour volume, total liquidity, 1-week price change, end date, and rank. Also includes payment settlement confirmation and product metadata.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   }
  },
  "output": {
   "type": "object"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "movers": [
   {
    "url": "https://polymarket.com/event/...",
    "rank": 1,
    "end_date": "2026-10-05T18:45:00Z",
    "question": "...",
    "change_1w": 0.005,
    "liquidity": 84635,
    "yes_price": 0.55,
    "volume24hr": 3163599
   }
  ],
  "payment": {
   "settled": true,
   "transaction": "0x..."
  },
  "product": "Catalyst Desk",
  "endpoint": "/v1/movers"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/catalyst-desk-top-movers-bb4855ae/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from catalyst-desk.catalystdesk.workers.dev](https://www.zero.xyz/host/catalyst-desk.catalystdesk.workers.dev/llms.txt)