MatterOS
Agent integrations

Your practice, inside ChatGPT and Claude

MatterOS speaks the Model Context Protocol. Paste one URL into ChatGPT, Claude, or any MCP-capable assistant, and it can read and act across all six pillars of your practice - scoped precisely to what you can see in the app.

Setup guide
https://thematteros.com/mcp
14 toolsPer-user OAuthRow-level scoped
MatterOS Connected
What’s overdue across my matters?
get_agenda
File reply to motion to dismissBrennan · 2 days over
Draft mediation statementWynn · 1 day over
Reconcile royalty statementsHelix · due today
Log 45 minutes on the Wynn call, billable.
log_time
Logged 45m · billable · Wynn v. Marlow Group

Ask, don't click

Query your caseload in plain English. No dashboard hunting, no filter menus.

Capture on the fly

A thought in chat becomes a real task, a logged hour, or a finding on the right matter.

Your permissions travel with you

Every request runs as you. If you can't see a matter in the app, your assistant can't either.

What your assistant can do

14 tools, across all six pillars

These are the exact tools a connected assistant is given - nothing hidden. Every call runs under your account and respects your permissions. Reads are safe by default; the few writes are clearly marked.

Matters

3 tools
list_mattersRead

Browse the caseload, filter by status.

get_matterRead

Open one matter's full record.

get_matter_briefRead

A whole matter in one call - parties, tasks, deadlines, findings.

Actions

4 tools
get_agendaRead

What's overdue, due soon, and coming up - across every matter.

list_tasksRead

See tasks, filter by matter or status.

create_taskWrite

Capture a task with urgency and a due date.

update_taskWrite

Mark done, reprioritize, or reschedule.

Team

2 tools
list_peopleRead

Clients, opposing parties, witnesses, counsel.

add_personWrite

Add a party or contact to a matter.

Evidence

1 tool
list_documentsRead

Find documents by matter, title, or tag.

Research

2 tools
list_findingsRead

Facts, issues, risks, and strategy, ranked.

add_findingWrite

Record a conclusion or flag on a matter.

Time

2 tools
list_chronologyRead

The timeline, with logged and billable minutes.

log_timeWrite

Log billable time straight onto a matter.

Prompt library

Ask, and it happens

Copy any prompt and paste it into ChatGPT or Claude with MatterOS connected. Every one of these maps to a tool shipping today.

Matters

Actions

Team

Evidence

Research

Time

Setup

Connected in under a minute

Your MatterOS connection URL
https://thematteros.com/mcp

You'll approve the connection in a browser tab using your MatterOS login. Each teammate connects with their own account - tokens are per person, never shared.

ChatGPT

  1. 1Open Settings → Connectors → Advanced and turn on Developer mode.
  2. 2In a chat, click + in the composer and enable Developer mode.
  3. 3Click Add sources → Connect more.
  4. 4Name the connector MatterOS and paste the URL above.
  5. 5Ask: “List my open matters in MatterOS.”

Claude

  1. 1Open Claude → Connectors → Add custom connector.
  2. 2Name it MatterOS and paste the URL above.
  3. 3Enable the connector from the composer, then ask Claude to use MatterOS - for example, “What tasks are open on my active matters?”

How authorization works

  1. 1You paste the URL into ChatGPT or Claude and click Connect.
  2. 2A browser tab opens. Sign in to MatterOS with your own email or Google - the same login you use here.
  3. 3A consent screen asks if you want to let that assistant act on your account. Approve or deny.
  4. 4Your assistant receives a token scoped to you. Every call runs as you - it can only see and change what you can.

Safety & scope

  • Per-user OAuth. Each teammate signs in with their own account. No shared API keys, no service tokens.
  • Row-level scoped. The assistant inherits your row-level security - it can never see another user's matters, tasks, or clients.
  • Reads by default. Most tools only read. The handful that write (create/update task, log time, add finding or person) are clearly marked.
  • Revoke any time. Disconnect MatterOS from your assistant's connector settings and the token dies immediately.