# Catalyst Desk Brief

> Catalyst Desk Brief is a paid API for AI agents from catalyst-desk.catalystdesk.workers.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-16).

Delivers a live prediction-market intelligence brief covering top-volume markets, biggest weekly repricings, and markets resolving within 72 hours

## Facts

- Endpoint: GET https://catalyst-desk.catalystdesk.workers.dev/v1/brief?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/catalyst-desk-brief-0f39d627
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RFaHGGqMyW1nhnqhfYHe1

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-brief-0f39d627
```

Example prompt: Give me today's Catalyst Desk prediction-market brief — I want to see the top-volume markets, anything that's had a big price swing this week, and any markets resolving in the next 72 hours.

## When to prefer this

Choose this endpoint when an agent needs a rapid, structured snapshot of prediction market activity without having to query individual market APIs. It is ideal for daily briefing workflows, monitoring market sentiment shifts, or identifying near-term resolution events. Prefer it over raw prediction market platform APIs when you want pre-aggregated intelligence across top-volume, repricing, and resolution dimensions in a single call.

## Known failure modes

- Payment not settled — x402 payment of 0.1 USDC required before response is served
- Stale data if underlying prediction market sources are delayed
- Empty sections if no markets meet the threshold criteria (e.g. no major repricings in the past week)
- Network errors from the Cloudflare Workers runtime
- Rate limiting or quota exhaustion on the underlying data sources

## How this service works

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

## Output

A JSON object containing today's date, a list of notes, payment settlement confirmation, and three structured sections: top-volume markets (question, yes price, 24hr volume), biggest 1-week repricings, and markets resolving within 72 hours — each market entry includes the question text and current yes price.

## 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": {
  "date": "2026-10-05",
  "notes": [
   "..."
  ],
  "payment": {
   "settled": true,
   "transaction": "0x..."
  },
  "product": "Catalyst Desk",
  "endpoint": "/v1/brief",
  "sections": {
   "top_volume": [
    {
     "question": "...",
     "yes_price": 0.55,
     "volume24hr": 3163599
    }
   ],
   "biggest_1w_repricing": [],
   "resolving_within_72h": []
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/catalyst-desk-brief-0f39d627/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)