Retrieve Polymarket event probabilities and format Yes/No outcome prices.
npx skills add https://github.com/JamesFincher/gengar --skill polymarket-jamesfincher
Please help me install this Agent Skill. Skill: polymarket Source: https://github.com/JamesFincher/gengar/tree/main/skills/research/polymarket Command: npx skills add https://github.com/JamesFincher/gengar --skill polymarket-jamesfincher
Polymarket users need fast, reliable access to prediction market odds and supporting market context without setting up authenticated trading integrations.
Ask for “Polymarket odds for bitcoin ETF approval” to retrieve the most relevant matching event and its current Yes/No probabilities.
High-intent search queries and answers about installing and using this skill.
To get prediction market odds, you search and retrieve Polymarket events and markets, then format outcome probability prices for interpretation. The skill presents Yes/No outcome prices as percentages along with available volume.
The best way to retrieve orderbook details and price history is by using CLOB tokens for orderbooks and condition IDs for price history feeds. You query public REST GET calls to the Gamma, CLOB, and Data APIs.
Parsing double-encoded JSON fields works by decoding nested JSON strings within fields like outcomePrices and clobTokenIds returned by Polymarket REST APIs. This extraction is required to access underlying market pricing data.
Yes, you can check prediction market odds without authenticated trading integrations. The skill provides read-only market discovery and lookup using public REST GET calls, requiring no authentication setup.
No API key is needed to retrieve market data and event probabilities. The skill relies exclusively on public REST GET calls to the Gamma, CLOB, and Data APIs to fetch active or newly listed market data.
Limitations include read-only access restricted to active or newly listed markets, dependency on parsing double-encoded JSON fields, and no trading execution. It applies to market odds, orderbook details, and historical price movements.
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