Missive MCP Server is a feature of 📝Missive that exposes a hosted 📝Model Context Protocol (MCP) enabling external AI apps such as 📝Claude or 📝ChatGPT can read and act on Missive conversations, contacts, and calendar through an OAuth grant the user approves inside Missive. It is the inbound half of Missive's MCP support: the outbound half, MCP integrations, gives Missive's own assistant access to tools like 📝Notion and Linear. Before it shipped, the only agent-facing surface was the 📝REST API, which is built for integrations and needs a token per script; the MCP server answers the shift toward chat apps reaching into tools directly, with the connected app's own model doing the reasoning. It is for teams on a current Productive or Business plan whose organization admin has enabled MCP access, using any MCP client that supports remote servers with OAuth, and it only ever sees the data the authorizing user can already see.
Key Capabilities
- Conversation lookup and reading — Search and open conversations and read their messages from the chat app, a capability the REST API does not offer since it cannot search.
- Labels, archive, and comments — Apply or remove labels, archive or close conversations, and read or post internal comments, the same actions a steward takes in the app.
- Drafts and sending — Compose and review drafts and send messages under the authorizing user's identity, gated by the permissions approved at connection time.
- Contacts and calendar — Look up contact records and check calendar availability, so a chat session can answer scheduling questions without leaving the conversation.
- Per-user OAuth scope — Access is granted per user, limited to their own visibility, and listed under Connected apps where it can be reviewed or revoked at any time.
Getting Started
- Confirm the org is on a current Productive or Business plan with MCP access enabled by an admin.
- In the AI app, add a custom connector pointing at https://mcp.missiveapp.com.
- Approve the requested permissions on the Missive authorization screen that opens.
- Manage or revoke the connection under Settings, Login & Security, Connected apps.
Related
- 📝Missive Integrations — the outbound direction, where Missive's assistant reaches into other tools.