How to integrate Missive MCP with OpenClaw

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Introduction

OpenClaw is the fastest growing agent harness out there, which can work 24/7 to automate almost any kind of tasks. However, its capabilities are limited to the tools it has access to. Composio allows your OpenClaw to access Missive with authentication management handled for you. You can execute actions on Missive via your favorite OpenClaw interface (Telegram, WhatsApp, TUI, etc), whichever you prefer.

Also integrate Missive with

Why use Composio?

Apart from a managed and hosted MCP server, you will get:

  • Programmatic tool calling allows LLMs to write its code in a remote workbench to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
  • Handling Large tool responses out of LLM context to minimize context rot.
  • Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so LLMs aren't overwhelmed by tools you don't need.

How to install Missive with OpenClaw

Using Composio API Key and Setup Prompt

Copy the setup prompt from the OpenClaw dashboard
  • Run it in your OpenClaw chat interface.
  • Authenticate Missive from the dashboard
  • Go back to your OpenClaw interface and start asking questions.

Using OpenClaw/Composio Plugin

1. Install OpenClaw Composio plugin

bash
openclaw plugins install @composio/openclaw-plugin

2. Copy the API Key from dashboard.composio.dev

3. Setup OpenClaw Config

bash
openclaw config set plugins.entries.composio.config.consumerKey "ck_your_key_here"

4. Restart OpenClaw

bash
openclaw gateway restart

5. Go to your chat interface and start asking questions.

6. When prompted, authenticate the app and you're all set.

How It Works

The plugin connects to Composio's MCP server at https://connect.composio.dev/mcp and registers all available tools directly into the OpenClaw agent. Tools are called by name — no extra search or execute steps needed.

If a tool returns an auth error, the agent will prompt you to connect that toolkit at dashboard.composio.dev.

Configuration

bash
{
  "plugins": {
    "entries": {
      "composio": {
        "enabled": true,
        "config": {
          "consumerKey": "ck_your_key_here"
        }
      }
    }
  }
}
OptionDescriptionDefault
enabledEnable or disable the plugintrue
consumerKeyYour Composio consumer key (ck_...)—
mcpUrlMCP server URL (advanced)https://connect.composio.dev/mcp

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

The Missive MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Missive account. It provides structured and secure access to your team's shared inboxes and chat threads, so your agent can perform actions like drafting emails, sending messages, generating reports, and managing team communication on your behalf.

  • Automated message drafting and scheduling: Let your agent create and save email, SMS, WhatsApp, or live chat drafts for later editing or scheduled sending.
  • Instant message sending in conversations: Have your agent send new messages directly to any Missive conversation, keeping your team in the loop in real time.
  • Team and user management: Effortlessly list all teams and their members, or pull a full directory of users in your Missive organization for easy coordination and task assignment.
  • Analytics report generation: Direct your agent to create detailed analytics reports across time ranges and filters, helping your team track productivity and engagement.
  • Webhook automation setup: Enable your agent to create or delete webhook subscriptions, so you can automate notifications and integrations with other tools as needed.

Supported Tools & Triggers

Tools
Create Analytics ReportTool to create an analytics report.
Create Missive ContactsTool to create one or more contacts in a Missive contact book.
Create DraftTool to create a new draft in Missive.
Create Missive PostTool to create a post in a Missive conversation.
Create Canned ResponseTool to create one or more canned responses (templates) in Missive.
Create Shared LabelTool to create one or more shared labels at the organization level.
Create Missive TaskTool to create a task in Missive.
Create TeamTool to create a new team in an organization.
Create WebhookTool to create a webhook subscription.
Delete DraftTool to delete a draft from a conversation by draft ID.
Delete PostTool to delete a post from a conversation by post ID.
Delete Saved ResponsesTool to delete one or more saved responses by ID.
Delete WebhookTool to delete a webhook subscription by webhook ID.
Get Analytics ReportTool to fetch a completed analytics report using its ID.
Get Missive ContactTool to fetch a specific contact using the contact ID.
Get Missive ConversationTool to fetch full conversation metadata (assignees/users/labels/team/org) for a specific conversation ID.
List Conversation MessagesTool to list messages belonging to a Missive conversation (newest first).
Get Missive MessageTool to fetch full message details including headers, HTML body, and attachments.
Get Missive ResponseTool to fetch a specific saved response using the response ID.
Get Missive TaskTool to get a single task by ID with full details including assignees, team, and conversation info.
List Missive Contact BooksTool to list contact books the authenticated user has access to.
List Missive Contact GroupsTool to list contact groups or organizations linked to a contact book.
List Missive ContactsTool to list contacts from a contact book.
List Conversation CommentsTool to list comments in a Missive conversation ordered from newest to oldest.
List Conversation DraftsTool to list draft messages in a Missive conversation (newest first).
List Conversation PostsTool to list posts in a Missive conversation ordered by newest first.
List Missive ConversationsTool to list conversations visible to the authenticated user ordered by newest activity first.
List Messages by Message-IDTool to fetch messages matching an email Message-ID header.
List Missive OrganizationsTool to list organizations the authenticated user is part of.
List Missive Saved ResponsesTool to list saved responses (canned responses/templates) for the authenticated user.
List Missive Shared LabelsTool to list shared labels (organization-level labels) available to the authenticated user.
List Missive TasksTool to list tasks accessible to the authenticated user.
List Missive TeamsTool to list all teams.
List Missive UsersTool to list all users.
Merge Missive ConversationsTool to merge multiple conversations into one.
Update Missive ContactTool to update one or more contacts in Missive.
Update Saved ResponseTool to update one or more saved responses in Missive.
Update Shared LabelsTool to update one or more shared labels in Missive.
Update Missive TaskTool to update an existing task's attributes in Missive.
Update Missive TeamTool to update one or more teams in Missive.

Conclusion

You've successfully integrated Missive with OpenClaw using Composio plugin. Now interact with Missive directly from your terminal, Web UI, or any messenger app using natural language commands.

Key benefits of this setup:

  • Seamless integration across TUI, Web UIs, and Messenger apps like Telegram, WhatsApp, Slack, etc.
  • Natural language commands for Missive operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 1000+ apps for cross-app workflows
  • Programmatic tool calling for complex tool chaining

Next steps:

  • Try asking OpenClaw to perform various Missive operations
  • Explore cross-app workflows by connecting more toolkits like Calendar, Slack, Notion, etc.
  • Build complex automation scripts that leverage OpenClaw's 24/7 running capabilities

How to build Missive MCP Agent with another framework

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FAQ

What are the differences in Tool Router MCP and Missive MCP?

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

Can I use Tool Router MCP with OpenClaw?

Yes, you can. OpenClaw 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 Missive tools.

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

Yes, absolutely. You can configure which Missive 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 Missive data and credentials are handled as safely as possible.

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