MongoDB MCP Server

Instructions

Implementation Reference

• src/tools/mongodb/create/createCollection.ts:13-25 (handler)

  The execute method implements the core logic of the 'create-collection' tool, connecting to MongoDB if necessary and calling createCollection on the provider.

  protected async execute({ collection, database }: ToolArgs<typeof this.argsShape>): Promise<CallToolResult> {
      const provider = await this.ensureConnected();
      await provider.createCollection(database, collection);
  
      return {
          content: [
              {
                  type: "text",
                  text: `Collection "${collection}" created in database "${database}".`,
              },
          ],
      };
  }

• src/tools/mongodb/mongodbTool.ts:8-11 (schema)

  Zod schema defining the required input parameters (database and collection) for the create-collection tool, referenced via argsShape.

  export const DbOperationArgs = {
      database: z.string().describe("Database name"),
      collection: z.string().describe("Collection name"),
  };

• src/tools/mongodb/tools.ts:41-41 (registration)

  Includes CreateCollectionTool in the MongoDbTools export array, enabling its instantiation and registration in the MCP server via server.ts.

  CreateCollectionTool,

• src/server.ts:142-144 (registration)

  Instantiates each tool from MongoDbTools (including create-collection) and calls its register method on the MCP server.

  for (const tool of [...AtlasTools, ...MongoDbTools]) {
      new tool(this.session, this.userConfig, this.telemetry).register(this.mcpServer);
  }

• src/tools/mongodb/create/createCollection.ts:6-6 (helper)

  Declares the tool name as 'create-collection', used during registration for MCP tool listing.

  protected name = "create-collection";