# polynews.news Price Movement Catalyst Analyzer

> polynews.news Price Movement Catalyst Analyzer is a paid API for AI agents from polynews.news, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Uses Grok AI to analyze the root cause of a specific price movement on a prediction market, returning catalyst identification with confidence scoring

## Facts

- Endpoint: POST https://polynews.news/api/v1/analyze-move
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polynews-news-390f1d7a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zfacib0-RmccP6iJtCTEU

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 polynews-news-390f1d7a -d '<json body>'
```

Example prompt: Can you run a Grok-powered catalyst analysis on why the YES price for the 'Fed rate cut by June' Polymarket market jumped from 42% to 67% yesterday afternoon, and give me a confidence score on the explanation?

## When to prefer this

Use this endpoint when you need to understand *why* a specific price movement occurred on a prediction market — not just what happened, but the causal catalyst with a confidence score. Prefer over generic news search when you need AI-synthesized cause-and-effect reasoning with evidence scoring rather than raw articles.

## Known failure modes

- Invalid or unrecognized market identifier returns 400 error
- Price movement timestamp outside available data range returns no results
- Grok API downstream failure returns 503 or timeout
- Insufficient recent news/X data for low-volume markets results in low-confidence or null analysis
- Payment failure or insufficient USDC balance returns 402 error

## How this service works

Grok-powered price movement catalyst analysis with confidence scoring. Simplest usage: pass just { marketId } and we resolve the market, pull price history, and analyze its most significant recent move. Advanced callers may instead supply a full { move, marketQuestion, outcomeName } payload.

## Output

Returns a structured analysis identifying the most likely catalyst(s) behind the observed price movement, with a confidence score indicating how strongly the evidence supports each explanation, plus source citations from news and X posts

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "data": {
       "type": "object",
       "properties": {
        "summary": {
         "type": "string"
        },
        "catalysts": {
         "type": "array",
         "items": {
          "type": "object",
          "properties": {
           "newsUrl": {
            "type": "string"
           },
           "newsTitle": {
            "type": "string"
           },
           "reasoning": {
            "type": "string"
           },
           "likelihood": {
            "type": "number"
           }
          }
         }
        },
        "confidence": {
         "type": "number"
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "analysis": "The price moved from 67% to 72% within 18 minutes of the Reuters wire. Volume spiked 4.2x during the window, and the move correlated with 1,400+ mentions of Newsom on X within the same hour. No countervailing news flow.",
   "catalyst": "Reuters report at 14:23 EST confirming a senior Newsom advisor will join the 2028 exploratory committee, triggering a sharp +5pt rally over the next 15 minutes",
   "confidence": "high",
   "relatedSources": 7
  },
  "meta": {
   "tier": "premium",
   "version": "v1",
   "endpoint": "/api/v1/analyze-move",
   "latencyMs": 22100,
   "timestamp": "2026-05-12T04:30:00.000Z"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polynews-news-390f1d7a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from polynews.news](https://www.zero.xyz/host/polynews.news/llms.txt)