How to integrate Toggl MCP with Claude Agent SDK

This guide walks you through connecting Toggl to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Toggl agent that can start a new time entry for coding, list all clients in your workspace, get details of your current running timer through natural language commands. This guide will help you understand how to give your Claude Agent SDK agent real control over a Toggl account through Composio's Toggl MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Toggl is a time tracking platform for managing work hours and productivity. It helps individuals and teams monitor tasks, analyze time usage, and optimize workflows.

56 Tools

Introduction

This guide walks you through connecting Toggl to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Toggl agent that can start a new time entry for coding, list all clients in your workspace, get details of your current running timer through natural language commands.

This guide will help you understand how to give your Claude Agent SDK agent real control over a Toggl account through Composio's Toggl MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

Also integrate Toggl with

OpenAI Agents SDKClaude CodeClaude CoworkCodexOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

TL;DR

Here's what you'll learn:
  • Get and set up your Claude/Anthropic and Composio API keys
  • Install the necessary dependencies
  • Initialize Composio and create a Tool Router session for Toggl
  • Configure an AI agent that can use Toggl as a tool
  • Run a live chat session where you can ask the agent to perform Toggl operations

What is Claude Agent SDK?

The Claude Agent SDK is Anthropic's official framework for building AI agents powered by Claude. It provides a streamlined interface for creating agents with MCP tool support and conversation management.

Key features include:

  • Native MCP Support: Built-in support for Model Context Protocol servers
  • Permission Modes: Control tool execution permissions
  • Streaming Responses: Real-time response streaming for interactive applications
  • Context Manager: Clean async context management for sessions

What is the Toggl MCP server, and what's possible with it?

The Toggl MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Toggl account. It provides structured and secure access to your time tracking data, so your agent can perform actions like logging time entries, managing clients and projects, handling tags, and retrieving detailed activity reports on your behalf.

  • Automated time entry management: Let your agent start, stop, and create new time entries with precise details, making it easy to track your work hours hands-free.
  • Client and project organization: Easily add new clients or projects, fetch client details, or remove outdated clients to keep your workspace up to date and well-structured.
  • Real-time activity tracking: Ask your agent to retrieve the currently running time entry or list recent activities, so you always know where your time is going.
  • Tag management and organization: Automatically create or delete tags to categorize your time entries, helping you analyze how your time is spent across different tasks.
  • Comprehensive workspace administration: Have your agent create organizations, set up workspaces, and ensure all your time tracking infrastructure is ready to go without manual setup.

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Step by step09 STEPS
1

Prerequisites

Before starting, make sure you have:
  • Composio API Key and Claude/Anthropic API Key
  • Primary know-how of Claude Agents SDK
  • A Toggl account
  • Some knowledge of Python
2

Getting API Keys for Claude/Anthropic and Composio

Claude/Anthropic API Key
  • Go to the Anthropic Console and create an API key. You'll need credits to use the models.
  • Keep the API key safe.
Composio API Key
  • Log in to the Composio dashboard.
  • Navigate to your API settings and generate a new API key.
  • Store this key securely as you'll need it for authentication.
3

Install dependencies

npm install @anthropic-ai/claude-agent-sdk @composio/core dotenv

Install the Composio SDK and the Claude Agents SDK.

What's happening:

  • @composio/core provides Composio integration for Anthropic
  • @anthropic-ai/claude-agent-sdk is the core agent framework
  • dotenv/config loads environment variables
4

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
ANTHROPIC_API_KEY=your_anthropic_api_key_here

Create a .env file in your project root.

What's happening:

  • COMPOSIO_API_KEY authenticates with Composio
  • USER_ID identifies the user for session management
  • ANTHROPIC_API_KEY authenticates with Anthropic/Claude
5

Import dependencies

import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

dotenv.config();
What's happening:
  • We're importing all necessary libraries including the Claude Agent SDK and Composio
  • The dotenv.config() function loads environment variables from your .env file
  • This setup prepares the foundation for connecting Claude with Toggl functionality
6

Create a Composio instance and Tool Router session

async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });

  // Create Tool Router session for Toggl
  const session = await composio.create(USER_ID, {
    toolkits: ['toggl'],
  });
  const mcpUrl = session?.mcp.url;
What's happening:
  • The function checks for the required COMPOSIO_API_KEY environment variable
  • We're creating a Composio instance using our API key
  • The create method creates a Tool Router session for Toggl
  • The returned url is the MCP server URL that your agent will use
7

Configure Claude Agent with MCP

const options: Options = {
  permissionMode: 'bypassPermissions',
  mcpServers: {
    composio: {
      type: 'http',
      url: mcpUrl,
      headers: { 'x-api-key': COMPOSIO_API_KEY }
    }
  },
  systemPrompt: 'You are a helpful assistant with access to Toggl tools via Composio.',
  maxTurns: 10,
};
What's happening:
  • We're configuring the Claude Agent options with the MCP server URL
  • permissionMode: 'bypassPermissions' allows the agent to execute operations without asking for permission each time
  • The system prompt instructs the agent that it has access to Toggl
  • maxTurns: 10 limits the conversation length to prevent excessive API usage
8

Create client and start chat loop

const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: '
  });

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}
What's happening:
  • The readline interface is created to handle user input and output
  • The query function is used to send the user's input to the agent
  • The chat loop continues until the user types 'exit' or 'quit'
9

Run the application

try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}
What's happening:
  • The chat function is the entry point for the application
  • The try-catch block is used to handle any errors that occur

Complete Code

Here's the complete code to get you started with Toggl and Claude Agent SDK:

import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });
  const session = await composio.create(USER_ID, {
    toolkits: ['toggl']
  });
  const mcp_url = session?.mcp.url;

  const options: Options = {
    permissionMode: 'bypassPermissions',
    mcpServers: {
      composio: {
        type: 'http',
        url: mcp_url,
        headers: { 'x-api-key': COMPOSIO_API_KEY }
      }
    },
    systemPrompt: 'You are a helpful assistant with access to Toggl tools via Composio.',
    maxTurns: 10,
  };

  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: '
  });

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}

try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}

Conclusion

You've successfully built a Claude Agent SDK agent that can interact with Toggl through Composio's Tool Router.

Key features:

  • Native MCP support through Claude's agent framework
  • Streaming responses for real-time interaction
  • Permission bypass for smooth automated workflows
You can extend this by adding more toolkits, implementing custom business logic, or building a web interface around the agent.
TOOLS

Supported Tools

Every Toggl action and event your agent gets out of the box.

Create Client

Tool to create a new client in a workspace.

Create Group

Tool to create a new group in a Toggl organization.

Create Invitation

Tool to send invitations to join a Toggl organization.

Create Organization

Tool to create a new organization with a default workspace in Toggl Track.

Create Project

Creates a new project in a Toggl workspace.

Create Tag

Tool to create a new tag in a workspace.

Create Time Entry

Tool to create a new time entry in the specified workspace.

Add User to Workspace Project

Tool to add a user to workspace project users.

Delete Toggl Client

Tool to delete a client in Toggl.

Delete Group

Tool to delete a group from a Toggl organization.

Delete Project Group

Tool to delete a project group from a Toggl workspace.

Delete Subscription

Tool to delete a webhook subscription in Toggl.

Delete Tag

Deletes a tag from a Toggl workspace.

Disable Weekly Report

Tool to disable weekly report email notifications.

Bulk Edit Time Entries

Tool to bulk edit multiple time entries in a workspace using JSON Patch operations.

Get All Plans

Tool to retrieve all available Toggl subscription plans and their features.

Get Client Details

Retrieves detailed information about a specific client in Toggl Track by its client ID and workspace ID.

Get Countries

Tool to retrieve all countries supported by Toggl.

Get Country Subdivisions

Tool to retrieve all subdivisions (states, provinces, regions) for a specific country in Toggl Track.

Get Currencies

Tool to retrieve the list of all currencies supported by Toggl Track.

Get Current Time Entry

Retrieves the currently running time entry for the authenticated user.

Get Event Filters

Retrieve the list of supported event filters for Toggl webhooks.

Get JWKS Keys

Retrieves the current JWKS (JSON Web Key Set) keyset used to sign JWT tokens.

List Clients

Retrieve a list of clients from a Toggl Track workspace with optional filtering by status and name.

Get My Location

Retrieves the authenticated user's last known location information including city, state, country, and coordinates.

Get My Quota

Tool to retrieve API rate limit quota for the authenticated user.

Get Organization Details

Retrieves detailed information about a specific Toggl organization including subscription plan, trial status, user count, and workspace settings.

Get Organization Groups

Retrieves all groups within a Toggl organization, including group members and workspace assignments.

Get Organization Users

Retrieves a list of users belonging to a Toggl organization.

Get Project Details

Tool to retrieve details of a specific project.

Get Projects

Tool to retrieve a list of projects from a Toggl workspace.

Get Public Subscription Plans

Tool to retrieve all publicly available subscription plans from Toggl.

Get Webhooks Status

Tool to retrieve the Toggl Webhooks server status.

Get Tags

Retrieve all tags in a Toggl workspace.

List Tasks

Tool to list tasks in a workspace or within a specific project.

Get Time Entries

Retrieve time entries for the authenticated user with flexible filtering options.

Get Time Entry

Tool to retrieve a specific time entry by its ID.

Get Timezone Offsets

Tool to retrieve all available timezone offsets from Toggl.

Get Timezones

Tool to retrieve all available timezones supported by Toggl Track.

Get User Clients

Retrieves all clients accessible to the authenticated user across all their workspaces.

Get User Preferences

Retrieves the authenticated user's preferences including timezone, date/time formats, notification settings, and enabled alpha/experimental features.

Get User Projects

Tool to retrieve all projects for the authenticated user.

Get User Tags

Tool to retrieve tags associated with the current user.

Get User Tasks

Retrieve all tasks across all workspaces accessible to the authenticated user.

Get User Workspaces

Tool to retrieve all workspaces the authenticated user belongs to.

Get Workspace Details

Retrieves comprehensive details and settings for a specific Toggl workspace by ID.

Get Workspace Logo

Tool to get workspace logo.

Get Workspace Preferences

Retrieves workspace preferences including the initial pricing plan and whether start/end times are hidden.

Get Workspace Users

Retrieves all users who belong to a specific Toggl workspace.

Stop Time Entry

Tool to stop a running time entry in a workspace.

Disable Product Emails

Tool to disable product emails for the authenticated user using a disable code.

Update Tag

Tool to update an existing tag in a specified workspace.

Send Demo Email

Tool to send a demo request email through Toggl's system.

Send Email to Contact

Tool to send an email to a contact via Toggl's smail service.

Send Smail Meet

Tool to send an email for meet.

Update Client

Updates an existing client in a Toggl workspace.

FRAMEWORKS

How to build Toggl MCP Agent with another framework

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Codex

Use Toggl MCP with Codex

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OpenClaw

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Hermes logo

Hermes

Use Toggl MCP with Hermes

CLI logo

CLI

Use Toggl MCP with CLI

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Google ADK

Use Toggl MCP with Google ADK

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LangChain

Use Toggl MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Toggl MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Toggl MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Toggl MCP with LlamaIndex

CrewAI logo

CrewAI

Use Toggl MCP with CrewAI

FAQ

Frequently asked questions

With a standalone Toggl MCP server, the agents and LLMs can only access a fixed set of Toggl tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Toggl and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Agent SDK fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Toggl tools.

Yes, absolutely. You can configure which Toggl scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Toggl data and credentials are handled as safely as possible.

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Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

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Abhi Arya
Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

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CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

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Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

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Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

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