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Exa · Prediction-market odds, price history, order books, holders

Polymarket

Polymarket data through the Exa Agent: current prediction markets and events with implied-probability prices, volume and liquidity; price history of an outcome; live order books; top holders and a trader's positions and recent activity. Ask in natural language and, for structured output, pass output_schema naming the fields you want from Polymarket. Examples: "Market-implied probability of a Fed rate cut at the next meeting, and how it moved over the past month." "Top five position holders of the most liquid market about the next US election." Price: Exa effort (minimal $0.012, low $0.025, medium $0.10, high $0.50 per run) plus Polymarket calls are free: only the Exa effort is charged; the cost Exa reports is billed, up to max_cost_usd (default $0.025). Usually answers inline within a minute; otherwise returns a run id to read with exa/agent-run-get.

Usage based ExaFinanceexa/polymarketListed

Activation pending; your agent will see it as unavailable until then.

Use this tool with your agent

Give this to your agent
Use my connected Agentik MCP server. I want to use the tool exa/polymarket (Polymarket via Exa: prediction-market odds, price history, order books, holders). Call inspect_tool with {"tool_id": "exa/polymarket"} first and tell me the price before anything runs. Ask me for the inputs it needs; never invent values, IDs or file URLs. When I confirm, call run_tool with tool_id "exa/polymarket" and my inputs, follow it with get_run if it is still running, and give me the result and the price Agentik reports. If the tool is unavailable, say so and use discover_tools to propose an alternative.
Show the prompt

Paste it into Claude, ChatGPT or Codex: your agent takes it from there, and shows the price before it runs.

Parameters

NameTypeRequiredDescription
querystringYesWhat you want from Polymarket, in natural language. Be explicit about the entities (domains, tickers, company names, routes, dates) and the fields you expect.
output_schemaobjectNoOptional JSON Schema for the structured answer (returned in output.structured). Name each field after the Polymarket data you want, e.g. {"type":"object","required":["domain","monthlyVisits"],"properties":{"domain":{"type":"string"},"monthlyVisits":{"type":"number","description":"from Polymarket"}}}.
effortstringNoExa Agent effort: minimal $0.012 (one quick lookup), low $0.025 (default), medium $0.10, high $0.50, plus partner calls. Options: minimal, low, medium, high.
max_cost_usdnumberNoCeiling reserved for this run, effort plus Polymarket calls (default $0.025, at most $2). The real cost Exa reports is billed, never more than this.

How your agent calls it

First inspect_tool for the current schema and price, then run_tool with the published example after confirming your inputs:

{
  "tool_id": "exa/polymarket",
  "input": {
    "query": "The current Polymarket market-implied probability of a US recession this year, from the most liquid matching market.",
    "effort": "minimal"
  }
}

Price and billing

Price
Usage based
Model
Usage based
Detail
Billed at the cost the provider reports for the call, never above $2. Your agent sees the maximum before running.
  • The provider’s price, 0% markup.
  • One prepaid balance for every provider; your agent sees the price before it runs.
  • Pay for measured usage; unused reservations are released.