Polymarket MCP Server

Instructions

Implementation Reference

• src/api/clob.ts:58-64 (handler)

  The actual implementation of the getSamplingMarkets method in the ClobApi class.

  async getSamplingMarkets(): Promise<ClobMarket[]> {
    return this.client.clob<ClobMarket[]>(
      "/sampling-markets",
      undefined,
      CACHE_TTLS.samplingMarkets,
    );
  }

• src/tools/clob/markets.ts:25-40 (registration)

  Registration and tool handler wrapper for get_sampling_markets in the MCP server.

  server.tool(
    "get_sampling_markets",
    "Get currently sampled Polymarket markets that are eligible for liquidity rewards.",
    {},
    async () => {
      try {
        const data = await clob.getSamplingMarkets();
        return { content: [{ type: "text", text: JSON.stringify(data, null, 2) }] };
      } catch (error) {
        return {
          content: [{ type: "text", text: `Error: ${(error as Error).message}` }],
          isError: true,
        };
      }
    },
  );