# Liquid Agent: Polymarket XRP 15m Price to Beat

> Liquid Agent: Polymarket XRP 15m Price to Beat is a paid API for AI agents from api.liquidagent.ai, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-10).

Returns the official Chainlink TWAP price to beat, live XRP price, distance from target, seconds remaining, and Polymarket Up/Down token prices for the current or a past 15-minute XRP price window.

## Facts

- Endpoint: GET https://api.liquidagent.ai/v1/polymarket/xrp-15m?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/liquid-agent-polymarket-xrp-15m-price-to-beat-97133dbd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xIqPnmtYYbGOMURh2uDX-

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 liquid-agent-polymarket-xrp-15m-price-to-beat-97133dbd
```

Example prompt: What's the official XRP price to beat right now on Polymarket's 15-minute up/down market, and how far is the live Chainlink price from it?

## When to prefer this

Use this endpoint when you need the authoritative Chainlink TWAP reference price for Polymarket's XRP 15-minute Up/Down market, especially when you need the official price to beat (not just a spot price) along with live distance, time remaining, and token prices in a single call. Prefer this over generic price feeds when your goal is Polymarket settlement context for XRP 15m windows.

## Known failure modes

- Invalid or missing unix timestamp returns an error or falls back to current window
- Market not yet initialized for the current window may return null or empty data
- Chainlink feed delay could cause stale price data
- Payment failure (x402) if USDC not provided correctly blocks the response
- Out-of-range historical timestamp may return no data

## How this service works

Polymarket XRP 15m Up/Down in one call: the OFFICIAL price to beat (the 60 s Chainlink TWAP before the window, matched to the cent against Polymarket's results), the live Chainlink price and its distance from the price to beat, seconds left, token ids and the market's own prices. ?start=<unix> returns a past window's official settle and outcome. $0.002 USDC. Data, not financial advice.

## Output

A JSON object containing: the market slug, asset (XRP), timeframe (15m), seconds remaining in the window, market status (live/settled), the official price to beat (60-second Chainlink TWAP before the window), the live Chainlink XRP price, the distance (in price units) between the live price and the price to beat, and the current Polymarket Up/Down token prices.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "market": {
   "slug": "xrp-updown-15m-1790652300",
   "asset": "XRP",
   "timeframe": "15m",
   "secondsLeft": 120
  },
  "status": "live",
  "distance": 55.93,
  "chainlink": {
   "price": 83140.29
  },
  "priceToBeat": 83084.36,
  "marketPrices": {
   "up": 0.925,
   "down": 0.075
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/liquid-agent-polymarket-xrp-15m-price-to-beat-97133dbd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.liquidagent.ai](https://www.zero.xyz/host/api.liquidagent.ai/llms.txt)