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4 agent-payable APIs across data. Every listing carries a tested call recipe - endpoint, auth shape, pricing, and known gotchas - on its detail page. polynews.news ↗

API	Category	Price / call	Uptime 30d	Status	Docs
Prediction Market Arbitrage API Paid x402 endpoint for arbitrage opportunities between prediction-market platforms.	data	$0.01	-	listed	call recipe →
Election Forecast API Grok-synthesized consensus forecast for candidate/party WINNER election markets (US and international). Blends live Polymarket odds (ground truth) with a polling average Grok synthesizes from multiple sources via web_search; returns per-candidate composites (equal-weight market+poll), the individual polls averaged into each candidate (verifiable), and cited sources. Target a market with a registered 'race' key or any Polymarket election event 'slug'.	-	$0.06	-	listed	call recipe →
Feed API Real-time trade stream with market summaries (2hr rolling window, $500+ trades)	-	$0.001	-	listed	call recipe →
Historical price data with configurable timeframes (1H/6H/1D/1W/1M/ALL) Historical price data with configurable timeframes (1H/6H/1D/1W/1M/ALL)	data	$0.005	-	listed	call recipe →

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