# Neuroterminal Market Movers

> Neuroterminal Market Movers is a paid API for AI agents from api.neuroterminal.xyz, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-15).

Returns the most uncertain and highest-volume prediction markets across Kalshi and Polymarket, highlighting biggest cross-venue probability gaps.

## Facts

- Endpoint: GET https://api.neuroterminal.xyz/v1/market-movers
- Price: $0.015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/neuroterminal-market-movers-634f20fd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c7SSMlfTvmsGgI7DHQ2xb

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 neuroterminal-market-movers-634f20fd
```

Example prompt: Show me the top 10 most uncertain liquid prediction markets across Kalshi and Polymarket right now — I want to see the ones closest to 50/50 with at least $10,000 in volume, plus any big cross-venue probability gaps.

## When to prefer this

Use this endpoint when you need a real-time cross-venue snapshot of uncertain or contested prediction markets, especially for identifying arbitrage gaps between Kalshi and Polymarket, or for surfacing the most liquid near-50% markets without maintaining your own market data pipeline. Prefer this over building direct Kalshi/Polymarket integrations when you need normalized, ranked, cross-venue data in a single pay-per-call call with no API key setup.

## Known failure modes

- Payment not included or insufficient USDC — returns HTTP 402 requiring x402 payment
- Invalid query parameter types (e.g. non-integer 'top') — returns 400 validation error
- Venues temporarily unavailable — venuesAvailable flags may show false, reducing coverage
- No markets meet minVolume threshold — returns empty mostUncertainLiquidMarkets array
- Network timeout if market data sources are slow to respond

## How this service works

Paid HTTP endpoints for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — pay per call.

## Output

A JSON object with the number of markets scanned per venue, venue availability status, a list of the most uncertain liquid markets (with question text, venue, USD volume, and probability), and the biggest cross-venue probability gaps between Kalshi and Polymarket for equivalent questions.

## 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"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "top": {
       "type": "integer"
      },
      "minVolume": {
       "type": "number"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "scanned": {
   "kalshi": 1496,
   "polymarket": 100,
   "liquidAfterFilter": 256
  },
  "venuesAvailable": {
   "kalshi": true,
   "polymarket": true
  },
  "biggestCrossVenueGaps": [],
  "mostUncertainLiquidMarkets": [
   {
    "venue": "polymarket",
    "question": "...",
    "volumeUsd": 51200,
    "probability": 0.46
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/neuroterminal-market-movers-634f20fd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.neuroterminal.xyz](https://www.zero.xyz/host/api.neuroterminal.xyz/llms.txt)