# Polymarket Prediction Markets Browser

> Polymarket Prediction Markets Browser is a paid API for AI agents from predict.memoryapi.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Browse and search Polymarket prediction markets with filtering by category or keyword

## Facts

- Endpoint: GET https://predict.memoryapi.org/x402/predict/markets
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/predict-memoryapi-org-206cf248
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xJXf7N-9QFXbD-jSFCFyX

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 predict-memoryapi-org-206cf248
```

Example prompt: Show me the top 10 Polymarket prediction markets in the politics category, and also search for any markets mentioning 'bitcoin'.

## When to prefer this

Use this endpoint when you need to discover or browse Polymarket prediction markets broadly — especially when filtering by category or searching by keyword. Prefer over the single-market detail endpoint when you don't already have a specific market ID.

## Known failure modes

- Invalid category value returns an error or empty results
- No markets found matching the keyword returns an empty list
- Exceeding limit parameter constraints may return an error
- Network or upstream Polymarket API unavailability causes a 5xx error

## How this service works

Browse Polymarket prediction markets. Filter by category (crypto, politics, sports, economics, science, entertainment, pop-culture), search by keyword, or set limit.

## Output

A list of Polymarket prediction markets matching the specified category and/or keyword filter, including market names, categories, outcomes, and prices, up to the specified limit.

## Example request

```json
{
 "q": "bitcoin",
 "tag": "crypto",
 "limit": 10
}
```

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "required": [
    "method"
   ],
   "properties": {
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {
  "count": 3,
  "source": "Polymarket",
  "markets": [
   {
    "id": "market1",
    "price": 0.65,
    "category": "crypto",
    "outcomes": [
     {
      "name": "Yes",
      "price": 0.65
     },
     {
      "name": "No",
      "price": 0.35
     }
    ],
    "question": "Will Bitcoin reach $100k by 2025?",
    "volume_usd": 5000000
   }
  ],
  "success": true,
  "total_volume_usd": 15000000
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/predict-memoryapi-org-206cf248/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from predict.memoryapi.org](https://www.zero.xyz/host/predict.memoryapi.org/llms.txt)