Lightdash MCP Server

Instructions

Implementation Reference

• src/mcp.ts:204-231 (handler)

  Handler function for the 'lightdash_list_charts' tool. Parses input using ListChartsRequestSchema, calls the Lightdash API to fetch charts for a given projectUuid, and returns the results as JSON text.

  case 'lightdash_list_charts': {
    const args = ListChartsRequestSchema.parse(request.params.arguments);
    const { data, error } = await lightdashClient.GET(
      '/api/v1/projects/{projectUuid}/charts',
      {
        params: {
          path: {
            projectUuid: args.projectUuid,
          },
        },
      }
    );
    if (error) {
      throw new Error(
        `Lightdash API error: ${error.error.name}, ${
          error.error.message ?? 'no message'
        }`
      );
    }
    return {
      content: [
        {
          type: 'text',
          text: JSON.stringify(data.results, null, 2),
        },
      ],
    };
  }

• src/schemas.ts:23-30 (schema)

  Zod schema for input validation of lightdash_list_charts tool, requiring a projectUuid.

  export const ListChartsRequestSchema = z.object({
    projectUuid: z
      .string()
      .uuid()
      .describe(
        'The UUID of the project. You can obtain it from the project list.'
      ),
  });

• src/mcp.ts:64-68 (registration)

  Registration of the 'lightdash_list_charts' tool in the MCP server's listTools handler, including name, description, and input schema.

  {
    name: 'lightdash_list_charts',
    description: 'List all charts in a project',
    inputSchema: zodToJsonSchema(ListChartsRequestSchema),
  },