AI-native automation
Automate work across
Expensify and 
Slackby teaching Caddi like a new hire.
Pick any number of tools and Caddi automates them end-to-end. No workflow builder. You teach it the job once, the way you'd train someone new.
Help me automate client Document in Expensify and Slack. Caddi builds the loop and runs it.
See it on your stack
See Caddi run Expensify and Slack together.
What Caddi is and how it works
An AI teammate that runs your back-office loops.
- Doesn't break. Caddi reads intent, so when fields move or UIs change, your loop keeps running.
- Taught like a new hire. Walk Caddi through the work once. Tweak it later by chat, with no workflow builder to re-architect.
SOC 2 attested · Human-in-the-loop · Full audit trail · 70+ tools across legal, finance, and operations
One continuous loop.
- 01Measure
Caddi watches how the work gets done today.
- 02Create
You teach it the job once. The loop ships.
- 03Improve
Caddi flags upgrades to existing loops and new automations to deploy.
Practical ways to use Expensify and Slack together
- 01
Send channel message in Slack when new expense report in Expensify.
Caddi watches Expensify for new expense report and send channel message in Slack — no copy-paste, no missed records.
- 02
Create expense in Expensify when new message in channel in Slack.
Caddi watches Slack for new message in channel and create expense in Expensify so the two systems stay in lockstep.
- 03
Send direct message in Slack from Expensify events.
When report approved happens in Expensify, Caddi send direct message in Slack with the right context attached.
Actions Caddi can take across Expensify and Slack
- Expensify
New expense report
Triggers when an expense report is submitted.
- Expensify
Report approved
Triggers when a report is approved for reimbursement.
- Expensify
Create expense
Add an expense with amount, category, and receipt.
- Expensify
Create report
Open a new expense report for an employee.
- Expensify
Submit report
Submit an expense report for approval.
- Slack
New message in channel
Triggers when a new message is posted to a channel.
- Slack
New mention
Triggers when the bot or a user is @-mentioned.
- Slack
New reaction added
Triggers when a reaction is added to a message.
- Slack
Send channel message
Post a message to a Slack channel.
- Slack
Send direct message
Send a DM to a user.
- Slack
Upload file
Upload a file to a channel or DM.
- Slack
Set channel topic
Update a channel's topic.
Common questions
How does Caddi connect Expensify and Slack?
Expensify and Slack just run together. You teach Caddi the way you'd teach a new hire: walk it through how you use them today, with no workflow builder to wire up. Caddi turns that walkthrough into a verified loop and runs it against Expensify and Slack end-to-end.
Do I need engineering help?
No. Whoever does the work today walks Caddi through it on a call, the same way they'd train a new hire. Caddi builds the loop. No code, no IT ticket.
Is my data safe?
Yes. Caddi is SOC 2 attested. The AI watches and builds the automation, and once the loop ships it runs as deterministic code, repeatable and logged, with any model step scoped and reviewable.
Can Caddi connect Expensify and Slack to other tools too?
Yes. Most Caddi loops span 3–6 tools. Once the first Expensify + Slack loop is live, Caddi suggests other tools and other workflows to fold in.
How fast can it go live?
Typical first loops ship within a week of that first walkthrough. The Caddi team reviews every loop before it runs in production.
Ready to automate Expensify and Slack?
Drop your work email and we'll show you Caddi running end-to-end against Expensify, Slack, and the rest of your stack.
Or skip the demo: sign up free and build it yourself.