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PolyNews Market Context
x402
PolyNews Market Context 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).
Delivers Grok-powered market analysis for a prediction market slug: breaking news, background context, forward-looking signals, and source citations from news and X (Twitter).
Price / call$0.05
Success—
StatusUnknown
How this service works
Grok-powered market analysis: ranked news + X citations with a structured summary (recent developments, background context, market interpretation, what to watch)
Output
Returns a structured Grok-generated analysis including: breaking news headlines relevant to the market, background context explaining the market's subject, forward-looking signals indicating likely price direction, and citations linking to the source news articles and X posts used in the analysis.
Example use cases
Example prompt
“Can you pull the Grok-powered market context for the Polymarket slug 'will-trump-sign-tariff-bill-by-june' — I want breaking news, background, forward signals, and source citations from news and X?”
Technical details
Endpoint
POSThttps://polynews.news/api/v1/market-contextWhen to prefer
Use this endpoint when you need a comprehensive, AI-synthesized narrative around a specific prediction market — combining news, X/Twitter signals, and forward-looking context in one call. Prefer this over the combined news+smart-money endpoint when you only need editorial/news intelligence without wallet-level data. Ideal for generating market briefings, explaining price moves, or helping a trader understand the narrative landscape before taking a position.
Side effects
- Invalid or non-existent market slug returns 404 or empty result
- Market has insufficient news coverage, resulting in sparse or low-confidence output
- Grok API timeout causes delayed or failed response
- Payment not processed (x402 flow failure) results in 402 Payment Required
- Rate limiting if too many calls in short succession
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"sources": [
{
"url": "https://politico.com/...",
"type": "news",
"title": "Newsom widens 2028 lead per latest internal",
"publishedAt": "2026-05-11T19:00:00Z"
},
{
"text": "Notable shift in California internals...",
"type": "x",
"author": "@nate_cohn",
"postedAt": "2026-05-11T20:14:00Z"
}
],
"analysis": "Recent polling shifts in California and New Hampshire favor Newsom, with Politico reporting a 6-point swing over the past week tied to his climate-policy address. Pete Buttigieg's support softened after the Iowa endorsement of a rival surrogate.",
"sentiment": "bullish-Newsom",
"confidence": "medium"
},
"meta": {
"tier": "premium",
"version": "v1",
"endpoint": "/api/v1/market-context",
"latencyMs": 18400,
"timestamp": "2026-05-12T04:30:00.000Z"
}
}
}Tags
x402
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