# How to integrate Circleback MCP with Atomic Agent ```json { "title": "How to integrate Circleback MCP with Atomic Agent", "toolkit": "Circleback MCP", "toolkit_slug": "circleback_mcp", "framework": "Atomic Agent", "framework_slug": "atomic-agent", "url": "https://composio.dev/toolkits/circleback_mcp/framework/atomic-agent", "markdown_url": "https://composio.dev/toolkits/circleback_mcp/framework/atomic-agent.md", "updated_at": "2026-09-01T05:34:22.881Z" } ``` ## 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 Circleback. 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 Circleback account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions. ## Also integrate Circleback MCP with - [ChatGPT](https://composio.dev/toolkits/circleback_mcp/framework/chatgpt) - [Claude Cowork](https://composio.dev/toolkits/circleback_mcp/framework/claude-cowork) - [Hermes](https://composio.dev/toolkits/circleback_mcp/framework/hermes-agent) ## TL;DR ### How Atomic Agent connects to Circleback 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 Circleback MCP to Atomic Agent ### Connect Circleback 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 Circleback. It searches Composio for the right tool. - On first use, open the sign-in link returned in the chat. Connect your Circleback 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 Circleback MCP server, and what's possible with it? The Circleback MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Circleback account. It provides structured and secure access so your agent can perform Circleback operations on your behalf. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `CIRCLEBACK_MCP_FIND_COMPANIES` | Findcompanies | Find companies matching the given search terms. Searches match company names and company domains. The data returned will be an array of objects with each company's domain and name when available. | | `CIRCLEBACK_MCP_FIND_PROFILES` | Findprofiles | Find profiles matching the given names. The data returned will be an array of objects representing each of the matching profiles. | | `CIRCLEBACK_MCP_GET_TRANSCRIPTS_FOR_MEETINGS` | Gettranscriptsformeetings | Get the full transcripts for given meeting IDs. Use string IDs like Vd6Pz_kWqLm3xY-c8RhTn. The data returned will be an array of objects, each representing a full transcript for a meeting. Each transcript object will contain the meetingId, meetingName, and an array of transcript segments. Each segment is formatted with timestamps like: {startTimestamp: 123.45, endTimestamp: 128.00, speaker: 'John Doe', words: 'This is a test.'} This should be used to get detailed transcript information for one or many meetings at once. | | `CIRCLEBACK_MCP_LIST_TAGS` | Listtags | List all tags available in the user's workspace. Returns an array of tag objects with their IDs and names. Use this to discover available tags before filtering meetings, transcripts, or action items by tag. | | `CIRCLEBACK_MCP_READ_MEETINGS` | Readmeetings | Given up to 50 meeting IDs, fetch detailed information for each meeting. Use string IDs like Vd6Pz_kWqLm3xY-c8RhTn. The data returned will be an array of objects, with each containing the meeting ID, name, notes, attendees, action items, AI-generated insights, creator, tags, status, duration, and creation date. | | `CIRCLEBACK_MCP_SEARCH_ACTION_ITEMS` | Searchactionitems | Find action items that match a given search term or filter. Returns action items with their title, description, status, assignee, and related meeting details. By default, only action items assigned to the user are returned. To find action items assigned to someone else, use FindProfiles to resolve their name to a profile ID and pass it as assigneeProfileId. Action items can be filtered by search terms, status (PENDING or DONE), tags, and meeting date range (startDate/endDate). Only 25 action items are returned per page, so this function may need to be called multiple times if there are more than that many results. If 25 action items are returned, call this function again with the next pageIndex to ensure you get all results. | | `CIRCLEBACK_MCP_SEARCH_CALENDAR_EVENTS` | Searchcalendarevents | Get calendar events from the user's connected calendars. When searching for calendar events, the tool will extract relevant excerpts based on the intent instead of returning the entire data. Each calendar event excerpt includes comprehensive details: event title, date (in the user's timezone), organizer email, attendees (with names, emails, and status), calendar description (if present), meeting platform (Zoom, Google Meet, Microsoft Teams, etc.), meeting platform link, whether it's a recurring event, Circleback join status, and any associated meeting data from the Circleback (meeting ID, status, tag IDs, user notes). You can filter events by providing a date range using startDate and endDate parameters. This is useful for finding upcoming meetings, scheduled calls, or calendar events that the user has. Note: This should be primarily used for searching calendar events happening in the future. Past calendar events have a meeting record if they were captured with Circleback. The only reason to use this to search past calendar events is if searching for the meeting with SearchMeetings yielded no relevant results. Only 50 calendar events are returned per page, so this function may need to be called multiple times if there are more than that many results. If 50 events are returned, call this function again with the next pageIndex to ensure you get all results. | | `CIRCLEBACK_MCP_SEARCH_EMAILS` | Searchemails | Search the user's connected email accounts for email threads matching a query. This should be used when the user asks questions about their emails or needs to find specific email conversations. This function queries across all connected email services and retrieves up to 20 matching email threads per service per page. The data returned will be an array of objects, with each containing the email thread ID, subject line, and relevant excerpts. Each email thread object includes metadata such as the sender email, received date, and the fromEmailAddress of the connected account the thread belongs to (if available). Only 20 email threads are returned per page, so this function may need to be called multiple times if there are more than that many results. | | `CIRCLEBACK_MCP_SEARCH_MEETINGS` | Searchmeetings | Find meetings that match a given search term or filter. Searches can be done by direct match on the meeting name or notes. Search term is a direct match ignoring case, prefer to search for a single word or phrase if provided. Searches can also be performed for tags or related profiles (attendees of the meetings). When searching for a meeting, the tool will find the appropriate meeting and extract the relevant source excerpt based on the intent instead of returning the entire data. NOTE: A search term is not explicitly required, for example if you want to find all meetings with a specific tag in a date range, only include those and don't pass a searchTerm. To restrict the search further, you can provide a start and end date. This will significantly improve performance. The data returned will be an an array of objects, with each containing meeting data. Only 20 meetings are returned per page, so this function may need to be called multiple times if there are more than that many results. If 20 meetings are returned, call this function again with the next pageIndex to ensure you get all results. IMPORTANT: The pageIndex is only valid for the exact same search parameters (aside from pageIndex). For example, if you provide a start / end date to fetch page 0, then you must provide the EXACT SAME start / end dates to fetch page 1. | | `CIRCLEBACK_MCP_SEARCH_SUPPORT_ARTICLES` | Searchsupportarticles | Search for support articles about Circleback to find relevant documentation and help content. | | `CIRCLEBACK_MCP_SEARCH_TRANSCRIPTS` | Searchtranscripts | Search meeting transcripts to find transcript chunks that match a given search term. If the user's question requires searching for multiple distinct search terms, you should call this function multiple times. The data returned will be an an array of objects, with each containing the meeting ID, name, creator user ID, when it was created, the chunk matching the search term, and the start and end timestamps of the matching chunk. Search results can be further filtered by including tags, profiles (attendees), or domains. This function is useful to find relevant meetings where a search term was mentioned. We can find more details about those meetings using the ReadMeetings tool. | ## 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 Circleback from Atomic Agent With your account connected, ask Atomic Agent to work with Circleback 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 Circleback MCP Agent with another framework - [ChatGPT](https://composio.dev/toolkits/circleback_mcp/framework/chatgpt) - [Claude Cowork](https://composio.dev/toolkits/circleback_mcp/framework/claude-cowork) - [Hermes](https://composio.dev/toolkits/circleback_mcp/framework/hermes-agent) ## Related Toolkits - [Google Sheets](https://composio.dev/toolkits/googlesheets) - Google Sheets is a cloud-based spreadsheet tool for real-time collaboration and data analysis. It lets teams work together from anywhere, updating information instantly. - [Notion](https://composio.dev/toolkits/notion) - Notion is a collaborative workspace for notes, docs, wikis, and tasks. It streamlines team knowledge, project tracking, and workflow customization in one place. - [Airtable](https://composio.dev/toolkits/airtable) - Airtable combines the flexibility of spreadsheets with the power of a database for easy project and data management. Teams use Airtable to organize, track, and collaborate with custom views and automations. - [Asana](https://composio.dev/toolkits/asana) - Asana is a collaborative work management platform for teams to organize and track projects. It streamlines teamwork, boosts productivity, and keeps everyone aligned on goals. - [Google Tasks](https://composio.dev/toolkits/googletasks) - Google Tasks is a to-do list and task management tool integrated into Gmail and Google Calendar. It helps you organize, track, and complete tasks across your Google ecosystem. - [Linear](https://composio.dev/toolkits/linear) - Linear is a modern issue tracking and project planning tool for fast-moving teams. It helps streamline workflows, organize projects, and boost productivity. - [Jira](https://composio.dev/toolkits/jira) - Jira is Atlassian’s platform for bug tracking, issue tracking, and agile project management. It helps teams organize work, prioritize tasks, and deliver projects efficiently. - [Clickup](https://composio.dev/toolkits/clickup) - ClickUp is an all-in-one productivity platform for managing tasks, docs, goals, and team collaboration. It streamlines project workflows so teams can work smarter and stay organized in one place. - [Monday](https://composio.dev/toolkits/monday) - Monday.com is a customizable work management platform for project planning and collaboration. It helps teams organize tasks, automate workflows, and track progress in real time. - [Addressfinder](https://composio.dev/toolkits/addressfinder) - Addressfinder is a data quality platform for verifying addresses, emails, and phone numbers. It helps you ensure accurate customer and contact data every time. - [Agiled](https://composio.dev/toolkits/agiled) - Agiled is an all-in-one business management platform for CRM, projects, and finance. It helps you streamline workflows, consolidate client data, and manage business processes in one place. - [AirOps MCP](https://composio.dev/toolkits/airops_mcp) - AirOps MCP is AirOps' managed content platform exposing brand context, knowledge bases, and workflows. Use it to give agents brand-aware content, automate content workflows, and track Brand Kit edits. - [Amazing Marvin](https://composio.dev/toolkits/amazing_marvin) - Amazing Marvin is a personal productivity app for tasks, projects, habits, planning, time tracking, and rewards. It helps you build a flexible workflow that matches how you actually work. - [AnyDB](https://composio.dev/toolkits/any_db) - AnyDB is a flexible collaborative database platform for organizing records, files, and automated workflows. It helps teams centralize data, collaborate on records, and automate routine tasks. - [ApptiveGrid](https://composio.dev/toolkits/apptivegrid) - ApptiveGrid is a collaborative no-code database and app platform for spaces, grids, forms, and structured records. It helps teams organize operational data, collect inputs, and build lightweight business apps without custom backend work. - [Ascora](https://composio.dev/toolkits/ascora) - Ascora is a cloud-based field service management platform for service businesses. It streamlines scheduling, invoicing, and customer operations in one place. - [Atlassian MCP](https://composio.dev/toolkits/atlassian_mcp) - Atlassian Rovo MCP connects agents to Jira, Jira Service Management, Confluence, Bitbucket, Compass, and Teamwork Graph workflows. It lets teams surface and act on Atlassian data while respecting existing user permissions. - [Basecamp](https://composio.dev/toolkits/basecamp) - Basecamp is a project management and team collaboration tool by 37signals. It helps teams organize tasks, share files, and communicate efficiently in one place. - [Beeminder](https://composio.dev/toolkits/beeminder) - Beeminder is an online goal-tracking platform that uses monetary pledges to keep you motivated. Stay accountable and hit your targets with real financial incentives. - [Boxhero](https://composio.dev/toolkits/boxhero) - Boxhero is a cloud-based inventory management platform for SMBs, offering real-time updates, barcode scanning, and team collaboration. It helps businesses streamline stock tracking and analytics for smarter inventory decisions. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Circleback MCP? With a standalone Circleback MCP server, the agents and LLMs can only access a fixed set of Circleback tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Circleback 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 Circleback tools. ### Can I manage the permissions and scopes for Circleback while using Tool Router? Yes, absolutely. You can configure which Circleback 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 Circleback data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)