DexPaprika MCP Server

Instructions

Implementation Reference

• src/index.js:250-258 (registration)

  Registration of the 'getStats' MCP tool using server.tool(). Defines empty input schema (no parameters), description, and inline handler function.

  server.tool(
    'getStats',
    'Get high-level statistics about the DexPaprika ecosystem: total networks, DEXes, pools, and tokens available.',
    {},
    async () => {
      const data = await fetchFromAPI('/stats');
      return formatMcpResponse(data);
    }
  );

• src/index.js:254-257 (handler)

  Handler function for the getStats tool. Fetches stats data from the DexPaprika '/stats' API endpoint and formats it for MCP response.

  async () => {
    const data = await fetchFromAPI('/stats');
    return formatMcpResponse(data);
  }

• src/index.js:10-34 (helper)

  Shared helper function used by getStats (and other tools) to make API requests to DexPaprika, with custom error handling for deprecated endpoints (410) and rate limits (429).

  async function fetchFromAPI(endpoint) {
    try {
      const response = await fetch(`${API_BASE_URL}${endpoint}`);
      if (!response.ok) {
        if (response.status === 410) {
          throw new Error(
            'This endpoint has been permanently removed. Please use network-specific endpoints instead. ' +
            'For example, use /networks/{network}/pools instead of /pools. ' +
            'Get available networks first using the getNetworks function.'
          );
        }
        if (response.status === 429) {
          throw new Error(
            'Rate limit exceeded. You have reached the maximum number of requests allowed for the free tier. ' +
            'To increase your rate limits and access additional features, please consider upgrading to a paid plan at https://docs.dexpaprika.com/'
          );
        }
        throw new Error(`API request failed with status ${response.status}`);
      }
      return await response.json();
    } catch (error) {
      console.error(`Error fetching from API: ${error.message}`);
      throw error;
    }
  }

• src/index.js:37-46 (helper)

  Shared helper function used by getStats (and other tools) to format raw API data into the standard MCP response format with JSON string in text content.

  function formatMcpResponse(data) {
    return {
      content: [
        {
          type: "text",
          text: JSON.stringify(data)
        }
      ]
    };
  }