MCP server

Connect Claude, ChatGPT, or any other MCP client to Missive and work with your conversations, contacts, and calendar from outside Missive.

Missive runs an MCP server at https://mcp.missiveapp.com. Connect an AI app to it, and that app can search your conversations, look up contacts, check your calendar, draft replies, and send them, without you opening Missive.

This is the opposite of MCP integrations, which bring outside tools into Missive's own assistant.

The MCP server is off by default. An organization admin has to turn it on before anyone in the organization can connect.

What you can do with it

Ask your AI app things like:

What did the customer in the Acme thread ask for, and has anyone replied yet?

Find every unanswered conversation labeled Billing from this week and summarize them.

Draft a reply to the last message in this thread, then put it in my drafts so I can review it.

Am I free Thursday afternoon? Book a 30 minute call with Sam if I am.

The app sees exactly what you see in Missive, across every organization and account you belong to. It cannot reach anything you couldn't already open yourself.

What it does not do

It doesn't use Missive AI. The model doing the thinking is the one in the app you connected, so you pay that vendor, not Missive. You don't need an AI provider connected, and MCP use doesn't draw down Missive AI credits.

It doesn't act on its own. Nothing happens unless you ask for it in a chat.

It isn't the REST API. For building an integration, use the REST API instead. MCP is for chatting with your data.

Requirements

Plan	Current Productive or Business plan. Legacy plans need an upgrade.
Organization	An admin must enable MCP access in every organization you belong to.
AI app	Any MCP client that supports remote servers with OAuth, such as Claude or ChatGPT.

If you belong to more than one organization, every one of them has to have MCP enabled. A single organization with it turned off blocks you entirely. See Admin controls.

How it works

1

You add Missive in your AI app

Paste https://mcp.missiveapp.com as a custom connector. See Connecting an AI app.

2

Missive asks you to approve

A browser window opens on Missive's authorization screen listing the permissions the app asked for. You choose which to grant, confirm the address you're being sent back to, and click Approve.

3

The app gets its own limited access

The app only receives the permissions you checked. Anything you left unchecked is invisible to it, down to the individual tools it can call.

4

You stay in control

Every connected app is listed in Settings > Login & Security > Connected apps, with the permissions it holds and when it last used them. Revoke any of them at any time.

Next steps

• Connect an AI app
• Permissions and scopes
• Manage connected apps
• Admin controls
• MCP server FAQ