ExpenseOS connects to Claude and ChatGPT over MCP, with Slack, Microsoft Teams and Google Chat coming soon. Expense a dinner, approve a report or plan a trip without leaving the conversation. The agent drafts; money moves only within the policy you set.
Your own agents can pay for what they need, under the same policy. ExpenseOS for Agents →
Real examples
Three things your team does every week, in the chat they already use: Claude and ChatGPT today, Slack and Teams soon. Tap Approve to see how money actually moves.
Client dinner · Tellers
The tools behind the chat
ExpenseOS exposes one set of MCP tools to every host. The line never moves: anything that reads is instant; anything that moves money drafts and waits for a human.
Answers return inline, no approval needed, they never touch a dollar.
ExpenseOS prepares the action and shows it to you. It only happens when you tap approve.
One rule, everywhere
Connecting ExpenseOS to a new surface never widens what it can do on its own, and your policy still decides every expense: in-policy spend reimburses automatically, everything else waits for a human, and every move is on the record.
Connect a host through standard OAuth with read and draft scopes only. Each app starts read-only, and letting it draft payments takes a second admin. No scope can release funds on its own.
Reads come back inline. Every write is shown to you first and waits, it can’t be automated away.
Who asked, what ExpenseOS drafted, and who approved, every action is logged the same way it is in the app.
Roll it out
Switch on Claude or ChatGPT in Admin and share your company’s MCP address. One sign-in, one OAuth. Slack, Teams and Google Chat are coming soon.
Send the setup guide and each teammate links their preferred surface. The trust boundary applies to everyone.
Pay, approve, file and ask in plain language. ExpenseOS drafts; you approve anything that moves money.
Not ready to roll it out company-wide? Your team can file expense reports free in ChatGPT and Claude today →
Travel & expense where your team already works
Book a demo and we’ll connect ExpenseOS to Claude or ChatGPT and walk your team through expensing, approving and planning trips, all with money moving only within your policy.
No spam. A short walkthrough mapped to your workspace.
Thanks, we’ll be in touch to schedule your walkthrough.