Official MCP Connector for Missive (Read & Write Access for AI Agents)
Alex Leever
Please build an official MCP (Model Context Protocol) connector for Missive so that external AI agents and tools (Claude, ChatGPT, Cursor, etc.) can interact with Missive data in a secure, structured way.
What we're asking for:
An official, supported MCP server that exposes Missive resources — conversations, messages, contacts, labels, assignments, and drafts — to any MCP-compatible AI client.
Why this matters:
MCP is quickly becoming the standard protocol for connecting AI assistants to external tools and data sources. Without an official Missive MCP connector, users are forced to build their own unofficial integrations (some community members have already done this), which are unsupported, fragile, and lack proper auth scoping.
With an official MCP connector, Missive users could:
- Ask an AI agent to summarize open conversations or flag urgent threads
- Create and send draft replies via an AI agent that has context from multiple tools (CRM, calendar, notes, etc.)
- Build automations that read Missive data alongside other MCP sources (e.g., Pipedrive, Notion, meeting transcripts)
- Use Missive as a full participant in multi-agent workflows
Suggested capabilities (read + write):
- Read: list/search conversations, fetch message threads, get contact details, retrieve labels and assignments
- Write: create drafts, send messages, apply labels, assign conversations, update contact fields
Why now:
MCP adoption is accelerating rapidly across AI clients (Claude Desktop, Cursor, Windsurf, etc.). Teams that rely on Missive as their communication hub deserve a first-class integration, rather than having to work around the gap with screenshots or DIY solutions.
This would be one of the highest-leverage integrations Missive could ship — it opens Missive up to the entire AI agent ecosystem at once.
Phil Langlois
Merged in a post:
Model Context Protocol (MCP) for Missive
Daniel Mochnal
Request to add support for the Model Context Protocol (MCP) for Missive.
The goal is to enable integration of Missive with agents and tools that use MCP, allowing secure and standardized communication between Missive and AI models.
This would simplify the creation of AI-driven automations and advanced workflows without the need for custom integrations.
Phil Langlois
FYI: If you need a Missive MCP server today, our friends at Relay made a great guide on building one with their platform: https://docs.relay.app/app-specific-faqs/missive
David Simões
This is taking so long that i am using my own for some time already locally: https://github.com/davidsimoes/missive-mcp
Ernest Koe
David Simões - yeah, how are you getting around the lack of 'archive' support?
David Simões
Ernest Koe Short answer: we're not, cleanly. Our MCP has a mark_as_read tool that uses a label-triggered Org Rule workaround (add _api-read label → rule fires → marks as read → cleanup). It works for the authenticated user, but each step creates/deletes posts which bumps last_activity_at — so in shared mailboxes, old conversations resurface for teammates.
We just submitted a detailed comment on the "Mark Conversations As Read" feature request asking for a proper PATCH /v1/conversations/:id with a read boolean. That would solve it for all of us building MCP servers.
For now we've scoped our workaround to only touch single-user conversations and leave shared ones for manual handling in the UI.
Ernest Koe
David Simões it doesn't look like Org rules sees API events? Are you able to get that org rule to run when the labeled is applied via API?
Ernest Koe
ah, nevermind. Stupid typo. Always the typo. That works. Thanks for the tip.
Danilo Gonella
David Simões grazie
Gareth Bissland
Agreed, this is nice but around the wrong way to what I was expecting.
Or Luis Shemtov
Gareth Bissland exactly this
Eva Tang
Gareth Bissland: Could you share the exact workflow you'd use this in?
Specifics are helpful.
Dan Morin
Eva Tang I think the original goal of this thread was to have a Missive MCP so that OTHER tools could connect to Missive and retrieve data.
What was just released appears to be the opposite. It allows Missive's AI to connect to external tools. While that's valuable, I don't think that was the original goal of this post.
Eva Tang
Dan Morin: Ah okay, I'll put this back on the board!
There is a workaround to make this happen. You can create a MCP using Relay which can wrap around Missive's API: https://docs.relay.app/ai/mcp
Or Luis Shemtov
Eva Tangyhaaa done that but that requires maintaining your own local server that occasionally breaks... also there are some basic operations which don't work well in the api -- ;like archiving a conversation from gmail :)
Charles Hudson
This is great! How can we recommend MCPs to add?
Eva Tang
Charles Hudson: No need! You can create a custom one: https://missiveapp.com/docs/ai/using-ai/mcp-integrations#custom-mcp-server
S
Sean McCormack
have there been any updates here? Missive is a critical part of our CX workflows and without the ability to get context from emails and their threads we have a massive blindspot in our Claude workflows
Sandro Leopold
Great Point! Imagine being able to access Missive from Notion AI ..