# Prediction Markets API

One implementation from Exa, paid per call at the provider's price.

## Implementations

- [Polymarket prediction-market odds](/providers/exa/polymarket.md): `exa/polymarket`, usage based, the maximum is shown before a run. Polymarket data through the Exa Agent: current prediction markets and events with implied-probability prices, volume and liquidity; price history. Needs query. Served by Exa.

## Other capabilities

- [Stocks & markets](/tools/finance/stocks.md): 5 tools.
- [Crypto prices & DeFi](/tools/finance/crypto.md): 2 tools, from $0.0002 per call, some tools free.
- [Exchange rates](/tools/finance/fx.md): 1 tool, with no charge per call.
- [SEC filings & macro data](/tools/finance/filings.md): 2 tools, with no charge per call.

## Providers

- [Exa](/providers/exa.md): 16 tools.

## Questions

### Which tool should my agent use?

Your agent compares the implementation by price and inputs with inspect_tool and proposes one before it runs.

### How is it billed?

At the cost the provider reports for each call, with no markup. Your agent sees the maximum before it runs a tool.

[Finance](/tools/finance.md) · [Connection guide](/connect.md) · [Billing](/docs/billing.md)

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[HTML page](/tools/finance/prediction-markets) · [Agent index](/llms.txt)