# Polymarket Sentiment Shift

> Polymarket Sentiment Shift is a paid API for AI agents from the-stall.intuitek.ai, paid per call via x402, $0.034/call, status unknown (last checked 2026-09-13).

Detects and quantifies recent shifts in crowd sentiment on Polymarket prediction markets for a given topic or market.

## Facts

- Endpoint: GET https://the-stall.intuitek.ai/cap/polymarket-sentiment-shift
- Price: $0.034/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polymarket-sentiment-shift-170ccb1f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2HMfDZn7NyOi7A1SxHut-

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 polymarket-sentiment-shift-170ccb1f
```

Example prompt: Has there been a notable sentiment shift on Polymarket recently for the 2024 US presidential election market? Show me the direction and magnitude of any crowd opinion changes.

## When to prefer this

Use this endpoint when you need real-time crowd sentiment momentum data from Polymarket prediction markets, particularly for detecting sudden opinion swings, tracking conviction shifts before events, or monitoring whether market participants are gaining or losing confidence on a specific outcome. Prefer this over general news sentiment tools when you specifically want the wisdom-of-crowds signal from active prediction market traders.

## Known failure modes

- Market identifier not found — returns empty or error response
- No recent sentiment data available for the requested topic
- Malformed properties input causes schema validation failure
- Payment not processed correctly via x402 — 402 response returned
- Rate limiting or upstream Polymarket data unavailability

## How this service works

Returns Polymarket prediction markets with the biggest recent probability shifts — useful for detecting sudden consensus changes on elections, crypto prices, and macro outcomes. Sorted by absolute 1-week change by default. Each result includes current probability, price change, volume, and resolution date. $0.008/call — free upstream.

## Output

Returns sentiment shift data for a specified Polymarket market or topic, including direction (bullish/bearish or yes/no confidence), magnitude of recent change, and contextual information about the crowd sentiment trend.

## Example request

```json
{
 "properties": "market_sentiment"
}
```

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polymarket-sentiment-shift-170ccb1f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from the-stall.intuitek.ai](https://www.zero.xyz/host/the-stall.intuitek.ai/llms.txt)