# Prediction Market Sentiment Scorer

> Prediction Market Sentiment Scorer is a paid API for AI agents from prediction-bot-iggf.onrender.com, paid per call via x402, $0.35/call, status unknown (last checked 2026-10-19).

Returns a sentiment score derived from X (Twitter) activity for a given Polymarket or Kalshi prediction market question

## Facts

- Endpoint: GET https://prediction-bot-iggf.onrender.com/sentiment?utm_source=zero.xyz
- Price: $0.35/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/prediction-market-sentiment-scorer-75324446
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TXpMDA2BkHN5wfMrz2Rk9

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 prediction-market-sentiment-scorer-75324446
```

Example prompt: What's the current X sentiment score for the Polymarket question 'Will the Fed cut rates before July 2025?'

## When to prefer this

Use this endpoint when you need a quantified sentiment signal from X (Twitter) specifically tied to Polymarket or Kalshi prediction market questions. Prefer this over generic sentiment APIs when the user is making or evaluating a prediction market position and wants social signal data from X rather than general news sentiment.

## Known failure modes

- Missing required 'q' query parameter returns an error
- Question string not recognized as a valid Polymarket or Kalshi market may return low-confidence or null score
- Service cold-start on Render may cause elevated latency or timeout
- Payment of 0.01 USDC not completed results in 402 Payment Required response
- Cached sentiment data may be stale if the market is low-activity

## How this service works

Live X (Twitter) sentiment for any Polymarket or Kalshi prediction market. Pass the market question as q; Grok reads the last 3 days of X posts and returns a score from -100 (very bearish on the question) to +100 (very bullish), the one-line catalyst driving the chatter, and whether discussion volume is rising, flat or falling. $0.35 per call.

## Output

A sentiment score reflecting current X (Twitter) public opinion about the specified prediction market question, indicating whether social sentiment is bullish, bearish, or neutral on the market outcome

## 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",
     "required": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string",
       "maxLength": 200,
       "description": "Polymarket or Kalshi market question in plain words, e.g. 'Will the Fed cut rates in October 2026'"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/prediction-market-sentiment-scorer-75324446/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from prediction-bot-iggf.onrender.com](https://www.zero.xyz/host/prediction-bot-iggf.onrender.com/llms.txt)