# How to integrate Freshbooks MCP with Atomic Agent

```json
{
  "title": "How to integrate Freshbooks MCP with Atomic Agent",
  "toolkit": "Freshbooks",
  "toolkit_slug": "freshbooks",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/freshbooks/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/freshbooks/framework/atomic-agent.md",
  "updated_at": "2026-08-11T13:09:53.197Z"
}
```

## Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Freshbooks.
This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Freshbooks account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate Freshbooks with

- [OpenAI Agents SDK](https://composio.dev/toolkits/freshbooks/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/freshbooks/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/freshbooks/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/freshbooks/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/freshbooks/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/freshbooks/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/freshbooks/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/freshbooks/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/freshbooks/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/freshbooks/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/freshbooks/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/freshbooks/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/freshbooks/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/freshbooks/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/freshbooks/framework/autogen)

## TL;DR

### How Atomic Agent connects to Freshbooks
Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.
Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

## Connect Freshbooks to Atomic Agent

### Connect Freshbooks to Atomic Agent
- Sign up or sign in to the [Composio dashboard](https://dashboard.composio.dev/?cta_placement=atomic-agent-api-key). Copy your API key.
- In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
- Ask Atomic Agent to do something in Freshbooks. It searches Composio for the right tool.
- On first use, open the sign-in link returned in the chat. Connect your Freshbooks account, then return to Atomic Agent to continue.
### Headless setup
Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

```bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY
```

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

The Freshbooks MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Freshbooks account. It provides structured and secure access to your Freshbooks businesses and projects, so your agent can perform actions like listing your companies, exploring business details, and managing project information on your behalf.
- Business overview and management: Instantly list all businesses associated with your Freshbooks account to get a clear view of your company structures.
- Project discovery across businesses: Ask your agent to retrieve all projects linked to a selected business, streamlining your workflow management.
- Seamless business context switching: Effortlessly switch between multiple businesses to access relevant project data without manual navigation.
- Centralized project insights: Quickly gather and summarize project lists for any business, making it easy to track ongoing work.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `FRESHBOOKS_CREATE_WEBHOOK` | Create Webhook | Register a new webhook callback for a FreshBooks account. Webhooks notify your application when specified events occur (e.g., when invoices are created, clients are updated, or payments are received). **Prerequisites:** Obtain a valid account_id using the List Businesses action first. **Important Notes:** - FreshBooks implements a verification mechanism to ensure you own the callback URI. The 'verified' field will initially be false. - Your webhook endpoint must respond with a 2xx HTTP status code. Any other status code (including 3xx redirects) is treated as a failure. - Webhook requests have a 10-second timeout. - Requires 'user:webhooks:write' OAuth scope. **Common Event Types:** client.create, client.update, client.delete, invoice.create, invoice.update, invoice.delete, payment.create, payment.update, payment.delete, expense.create, expense.update, expense.delete. |
| `FRESHBOOKS_DELETE_WEBHOOK` | Delete Webhook | Delete a webhook callback from a FreshBooks account. Use when you need to remove an existing webhook subscription that is no longer needed. |
| `FRESHBOOKS_GET_BUSINESS_USERS` | Get Business Users | Retrieves staff identities and members for a specific FreshBooks business. This action returns detailed information about all staff members (owners, admins, employees) in a business group, including their roles, email addresses, and active status. Use this to discover team members before assigning time entries or tasks. |
| `FRESHBOOKS_LIST_BUSINESSES` | List Businesses | List all businesses associated with the authenticated user. This action retrieves business membership information from the FreshBooks Identity endpoint, showing all businesses the user has access to along with their role in each business. The business_id from this response is required for many other FreshBooks API calls. |
| `FRESHBOOKS_LIST_CLIENTS` | List Clients | Retrieves all clients for a FreshBooks account. Clients are entities you send invoices to. Supports pagination, filtering by email/user ID/visibility state, sorting, and includes optional balance data (outstanding, credit, draft, overdue). |
| `FRESHBOOKS_LIST_JOURNAL_ENTRIES2` | List Journal Entries | Retrieves all journal entries for a FreshBooks business account. Journal entries are the building blocks of financial accounting, recording all business transactions including invoices, payments, credits, and expenses. Use this action to get a comprehensive view of your accounting records. |
| `FRESHBOOKS_LIST_PROJECTS` | List Projects | Retrieves all projects associated with a FreshBooks business account. This action returns a paginated list of projects with comprehensive details including client information, billing rates, budget, completion status, team members, and associated services. Use this to discover available projects before performing project-specific operations. **Prerequisites:** Obtain a valid business_id using the List Businesses action first. **Use Cases:** - Get all projects for time tracking or invoicing - Find projects by client, status, or date range - Monitor project completion and budget tracking - Retrieve team assignments and project groups **Response:** Returns an empty list if no projects exist or match the filters. |
| `FRESHBOOKS_LIST_WEBHOOKS` | List Webhooks | List all webhook callbacks registered for a FreshBooks account. Webhooks notify your application when events occur (e.g., invoice creation, payment received). Use this to discover what webhook callbacks are currently active for an account before creating or managing webhook subscriptions. |
| `FRESHBOOKS_REGISTER_AS_A_NEW_USER` | Register as a New User | Register a new user account in FreshBooks. Returns an access token upon successful registration. Use this action when you need to create a new FreshBooks user account programmatically with their business information. |
| `FRESHBOOKS_UPDATE_WEBHOOK` | Update Webhook | Update or verify a FreshBooks webhook callback. Use this to verify a newly created webhook by providing the verification code, or to request a new verification code be sent to the callback URI. **Prerequisites:** You need the account_id (from List Businesses as business_uuid) and callback_id (from webhook creation). **Use Cases:** - Verify a webhook after creation by providing the verifier code received at your callback URI - Request a new verification code if the original was lost or expired (set resend=true) **Important:** The verifier and resend parameters are mutually exclusive - provide only one per request. |

## Supported Triggers

None listed.

## Troubleshooting

### Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

### Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

### Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See [Composio pricing](/pricing) for the current limits that apply to your connection.

## Complete Code

None listed.

## Conclusion

### Use Freshbooks from Atomic Agent
With your account connected, ask Atomic Agent to work with Freshbooks in natural language. You can connect more apps through the same Composio integration as you need them.
Visit the [Atomic Agent website](https://atomicagent.io/?cta_placement=atomic-agent-site) or inspect the [Atomic Agent source code](https://github.com/AtomicBot-ai/atomic-agent?cta_placement=atomic-agent-repo).

## How to build Freshbooks MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/freshbooks/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/freshbooks/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/freshbooks/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/freshbooks/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/freshbooks/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/freshbooks/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/freshbooks/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/freshbooks/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/freshbooks/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/freshbooks/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/freshbooks/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/freshbooks/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/freshbooks/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/freshbooks/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/freshbooks/framework/autogen)

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## Frequently Asked Questions

### What are the differences in Tool Router MCP and Freshbooks MCP?

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

### Can I use Tool Router MCP with Atomic Agent?

Yes, you can. Atomic Agent 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 Freshbooks tools.

### Can I manage the permissions and scopes for Freshbooks while using Tool Router?

Yes, absolutely. You can configure which Freshbooks 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.

### How safe is my data with Composio Tool Router?

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 Freshbooks data and credentials are handled as safely as possible.

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