x402basequality 0.88

Grok-powered analysis of prediction market price movement catalysts with confidence scoring, paid per call in USDC on Base.

Price
0.05 USDC / call
Protocol
x402
Verified
no
Endpoint
https://polynews.news/api/v1/analyze-move

What it does

The `/api/v1/analyze-move` endpoint is part of the PolyNews Intelligence API, a suite of x402-payable endpoints providing real-time Polymarket and Kalshi prediction market intelligence for autonomous trading agents. This specific endpoint uses Grok AI to analyze a given price movement on a prediction market outcome, identifying the most likely catalyst (e.g., a news event or social media post), assigning a confidence score (0–1), and returning supporting evidence. It costs $0.05 USDC per call on Base, requires no API key or subscription, and settles payment automatically via the x402 micropayment protocol.

Callers supply a `move` object (direction, magnitude, start/end timestamps), the market question, the outcome name that moved, and an array of `nearbyNews` items (typically gathered first via the companion `/api/v1/move-context` endpoint). The response includes a `catalyst` string describing the identified cause, a numeric `confidence` score, and an `evidence` array with supporting references. This endpoint is tagged as "premium" tier within the PolyNews API.

The broader PolyNews API also offers free market discovery and live prices, standard-tier trade feeds and price history, premium Grok-powered market context and daily briefings, and alpha-tier smart money detection, wallet scoring, and cross-platform Polymarket × Kalshi arbitrage. All paid endpoints accept USDC on Base to address `0x6ee49a7872844397Fb52870Cc07b308fFADC9427`. The endpoint returned a valid 402 challenge during probing, confirming it is live.

Capabilities

price-movement-analysiscatalyst-identificationconfidence-scoringgrok-ai-analysisprediction-market-intelligencex402-micropaymentusdc-on-basepolymarket-datanews-evidence-retrieval

Use cases

  • —Autonomous trading agents investigating why a Polymarket outcome price spiked or dropped
  • —Post-trade analysis pipelines attributing prediction market movements to specific news events
  • —Alert systems that detect large price moves and automatically explain the catalyst
  • —Research workflows combining move-context news retrieval with AI-powered catalyst attribution
  • —Dashboard backends displaying human-readable explanations for prediction market volatility

Fit

Best for

  • —AI trading agents operating on Polymarket that need automated move explanations
  • —Developers building prediction market analytics dashboards
  • —Autonomous workflows that chain move-context → analyze-move for end-to-end catalyst detection
  • —Teams needing per-call pricing without API keys or subscriptions

Not for

  • —Real-time sub-second trading signals (Grok analysis has latency)
  • —Non-prediction-market price analysis (equities, forex, etc.)
  • —Users who cannot pay in USDC on Base

Quick start

curl -X POST https://polynews.news/api/v1/analyze-move \
  -H 'Content-Type: application/json' \
  -H 'X-Payment: <x402-payment-proof>' \
  -d '{
    "marketQuestion": "Democratic Presidential Nominee 2028",
    "outcomeName": "Gavin Newsom",
    "move": {"timestamp":1740003600000,"priceBefore":67,"priceAfter":72,"percentChange":5},
    "nearbyNews": []
  }'

Example

Request

{
  "move": {
    "timestamp": 1740003600000,
    "priceAfter": 72,
    "priceBefore": 67,
    "percentChange": 5
  },
  "nearbyNews": [
    {
      "url": "https://example.com/article",
      "title": "Newsom announces major policy initiative",
      "publishedAt": "2025-02-19T21:00:00Z"
    }
  ],
  "outcomeName": "Gavin Newsom",
  "marketQuestion": "Democratic Presidential Nominee 2028"
}

Response

{
  "data": {
    "analysis": "The 5-point price increase from 67¢ to 72¢ on the Gavin Newsom outcome coincides with widespread media coverage of his policy announcement. Multiple news outlets and X accounts amplified the story within the movement window, providing strong temporal correlation.",
    "catalyst": "Newsom's announcement of a major policy initiative aligned with Democratic primary voters, boosting his perceived viability.",
    "confidence": "0.82"
  }
}

Endpoint

URLhttps://polynews.news/api/v1/analyze-move
Transporthttp
Protocolx402
Pay to0x6ee49a7872844397Fb52870Cc07b308fFADC9427
CurrencyUSD COIN

Quality

0.88/ 1.00

Full OpenAPI 3.1 schema with detailed request/response definitions, live 402 challenge confirmed, clear pricing ($0.05 USDC), and comprehensive docs page. Slightly below 0.9 because no actual successful response example was captured (only the 402 challenge and schema), and the output schema in the challenge uses string type for confidence rather than number as in the OpenAPI spec.

Warnings

  • —The x402 challenge outputSchema defines confidence as type 'string' while the OpenAPI spec defines it as type 'number' — callers should handle both
  • —No actual successful (200) response was captured during probing; response shape is inferred from schema only
  • —The move object schema differs slightly between the OpenAPI spec (direction/magnitude/startTime/endTime) and the x402 challenge outputSchema (timestamp/priceBefore/priceAfter/percentChange) — both formats may be accepted

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-22 01:41:26Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/uNCSrW