# KiteEndpoints.ai - Polymarket Markets

> KiteEndpoints.ai - Polymarket Markets is a paid API for AI agents from kite-endpoints.vercel.app, paid per call via x402, $0.19/call, status unknown (last checked 2026-09-15).

Fetches active prediction market listings from Polymarket via the KiteEndpoints API hub

## Facts

- Endpoint: POST https://kite-endpoints.vercel.app/api/polymarket-markets
- Price: $0.19/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kiteendpoints-ai-polymarket-markets-ff26a477
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4jt1FAgJt9dylOuNxtBzL

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 kiteendpoints-ai-polymarket-markets-ff26a477 -d '<json body>'
```

Example prompt: Pull a list of the currently active Polymarket prediction markets — I want to see what events are open for trading right now.

## When to prefer this

Use this endpoint when you need Polymarket-specific market listings with pay-per-request pricing via USDC on Base chain, without managing a direct Polymarket API integration. Ideal for agents that occasionally need prediction market data and want to avoid API key management.

## Known failure modes

- Polymarket API unavailable or rate-limited — returns error from upstream
- No markets matching the requested filters — empty result set
- Payment failure or insufficient USDC balance — 402 response before processing
- Malformed request body — 400-level error
- Stale or cached data if Polymarket data is temporarily delayed

## How this service works

400+ paid API endpoints. Social media, AI, crypto, finance, weather, ecommerce, tools. Pay per request with USDC on Base chain.

## Output

Returns a list of Polymarket prediction market objects including market IDs, question text, outcome options, current odds/prices, liquidity, volume, and expiration dates for active markets.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kiteendpoints-ai-polymarket-markets-ff26a477/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kite-endpoints.vercel.app](https://www.zero.xyz/host/kite-endpoints.vercel.app/llms.txt)