# PolyPulse: Polymarket Biggest Movers

> PolyPulse: Polymarket Biggest Movers is a paid API for AI agents from api.polypulse-x402.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-14).

Returns Polymarket prediction markets with the largest price movements over a given time window, filtered by direction and minimum volume

## Facts

- Endpoint: GET https://api.polypulse-x402.workers.dev/v1/markets/movers?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polypulse-polymarket-biggest-movers-c29acb70
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kUJDcUwftpDHudocljjeP

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 polypulse-polymarket-biggest-movers-c29acb70
```

Example prompt: Show me the top 20 biggest movers on Polymarket over the last 24 hours, only markets moving upward with at least $10,000 in daily volume.

## When to prefer this

Use this endpoint when you need to identify which Polymarket prediction markets are experiencing the most significant price movement over a short time horizon (1h or 24h). It is ideal for momentum tracking, anomaly detection, arbitrage signal discovery, or building a live briefing on fast-moving events. Prefer this over the volume or closing-soon endpoints when your primary interest is price velocity rather than market size or urgency.

## Known failure modes

- No markets match the specified filters (e.g. very high min_volume with narrow direction) — returns empty markets array with count 0
- Polymarket Gamma API temporarily unavailable — may return stale cached data (up to 60 seconds old) or upstream error
- Invalid query parameter values (e.g. window not in enum) — likely returns 400 or ignores unknown values
- Payment failure via x402/USDC — request not processed if payment not received
- Rate limiting if many rapid calls are made without successful payment

## How this service works

Live Polymarket prediction-market data for AI agents: markets closing soon, biggest movers, top by volume ($0.01 each) and a one-call cross-market digest ($0.02). USDC via x402 on Base.

## Output

A JSON array of prediction market objects sorted by price movement magnitude, each including the market question, event name, current yes price, best bid/ask, spread, 1h and 24h price change, liquidity in USD, 24h volume in USD, outcome probabilities, Polymarket URL, and end date. Also includes a count, data source label, and generation timestamp.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "integer",
       "default": 15,
       "maximum": 50,
       "minimum": 1
      },
      "window": {
       "enum": [
        "1h",
        "24h"
       ],
       "type": "string",
       "default": "24h"
      },
      "direction": {
       "enum": [
        "any",
        "up",
        "down"
       ],
       "type": "string",
       "default": "any"
      },
      "min_volume": {
       "type": "number",
       "default": 10000,
       "minimum": 0,
       "description": "minimum 24h volume (USD)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 1,
  "source": "Polymarket Gamma API (live, cached <=60s)",
  "markets": [
   {
    "url": "https://polymarket.com/event/nfl-pit-cle-2026-10-02",
    "event": "Steelers vs. Browns",
    "spread": 0.01,
    "best_ask": 0.58,
    "best_bid": 0.57,
    "end_date": "2026-10-02T00:15:00Z",
    "outcomes": {
     "Browns": 0.425,
     "Steelers": 0.575
    },
    "question": "Steelers vs. Browns",
    "change_1h": 0,
    "yes_price": 0.575,
    "change_24h": 0.02,
    "liquidity_usd": 3447209,
    "volume_24h_usd": 516719
   }
  ],
  "generated_at": "2026-10-01T15:00:00Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polypulse-polymarket-biggest-movers-c29acb70/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.polypulse-x402.workers.dev](https://www.zero.xyz/host/api.polypulse-x402.workers.dev/llms.txt)