DexPaprika (CoinPaprika)

Instructions

Implementation Reference

• src/index.js:93-100 (handler)

  The async handler function that constructs the API endpoint for fetching DEXes on a specific network and calls the shared fetchFromAPI helper.

  async ({ network, page, limit, sort, orderBy }) => {
    let endpoint = `/networks/${network}/dexes?page=${page}&limit=${limit}&sort=${sort}`;
    if (orderBy) {
      endpoint += `&order_by=${orderBy}`;
    }
    const data = await fetchFromAPI(endpoint);
    return formatMcpResponse(data);
  }

• src/index.js:86-92 (schema)

  Zod input schema defining parameters for the getNetworkDexes tool: network (required), pagination and sorting options.

  {
    network: z.string().describe('Network ID from getNetworks (e.g., "ethereum", "solana")'),
    page: z.number().optional().default(0).describe('Page number for pagination'),
    limit: z.number().optional().default(10).describe('Number of items per page (max 100)'),
    sort: z.enum(['asc', 'desc']).optional().default('desc').describe('Sort order'),
    orderBy: z.enum(['pool']).optional().describe('How to order the returned data')
  },

• src/index.js:83-101 (registration)

  Full server.tool registration call that defines the getNetworkDexes tool, including name, description, input schema, and handler function.

  server.tool(
    'getNetworkDexes',
    'Get available DEXes on a specific network. First call getNetworks to see valid network IDs.',
    {
      network: z.string().describe('Network ID from getNetworks (e.g., "ethereum", "solana")'),
      page: z.number().optional().default(0).describe('Page number for pagination'),
      limit: z.number().optional().default(10).describe('Number of items per page (max 100)'),
      sort: z.enum(['asc', 'desc']).optional().default('desc').describe('Sort order'),
      orderBy: z.enum(['pool']).optional().describe('How to order the returned data')
    },
    async ({ network, page, limit, sort, orderBy }) => {
      let endpoint = `/networks/${network}/dexes?page=${page}&limit=${limit}&sort=${sort}`;
      if (orderBy) {
        endpoint += `&order_by=${orderBy}`;
      }
      const data = await fetchFromAPI(endpoint);
      return formatMcpResponse(data);
    }
  );

• src/index.js:10-34 (helper)

  Shared helper function to fetch data from DexPaprika API, handles errors like rate limits and deprecated endpoints, used by getNetworkDexes handler.

  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 to format API response data into MCP-compatible text content format, used by getNetworkDexes handler.

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