Scheduling & Booking · Integration
Appointlet
Add Appointlet to your product for your customers, and give your AI agents governed access to it.
Embed an Appointlet integration so your customers can offer scheduling from inside your product, reading their own meeting types and availability and creating or rescheduling bookings under their account. Every team configures its own meeting types and hours, so that mapping is configuration per customer rather than code. fastn handles per-customer authentication and API upkeep.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let customers read their meeting types and available times and present them inside your product.
Create a booking from your product so users never leave to schedule a call.
Reschedule or cancel a booking when the underlying record in your product changes.
Trigger your product when a booking is made, rescheduled, or cancelled.
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
An agent reads availability before proposing times to a customer.
An agent books or reschedules a meeting within governed permissions.
An agent reacts to a new booking and prepares the record the host will need.
Example prompt
Show bookings for next week by meeting type and flag any host with no free time left.
Set up Appointlet in 4 steps
- 01Open the Appointlet connector from your fastn dashboard.
- 02Have each customer authenticate their own Appointlet account.
- 03Map the meeting types and booking fields your product uses, then enable actions and triggers.
- 04Call them from your product, or expose them to an agent through the MCP server.
Why teams use the Appointlet integration
What you get by embedding it with fastn instead of building it yourself.
- Ship an Appointlet integration without building it. Your customers connect their own Appointlet account inside your product and work their bookings, events and availability there, with no per-customer code on your side.
- Handle the part that actually costs time: availability is only true at the moment you read it, so a stale free/busy picture becomes a double booking somebody has to apologise for. fastn owns the auth, token refresh, rate limits, pagination and breaking-change fixes, so an Appointlet update is not your on-call problem.
- One integration serves your product and your agents. The same governed Appointlet connection powers in-product features and gives AI agents scoped, audited access, so you let people book and reschedule without leaving your product without wiring it twice.
Used by these teams
Works well with
AnyMeeting
HubSpot
SlackOften used alongside
Tools the same teams tend to run next to Appointlet, across other categories.
Microsoft Teams
Twilio
Aircall
GongAppointlet integration FAQ
How do I add an Appointlet integration to my product?
Enable the Appointlet connector in your fastn dashboard, then let each customer authenticate their own Appointlet account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no Appointlet client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own Appointlet account?
Yes. Every connection is scoped to the individual customer, so each authorises their own Appointlet account and only ever sees their own bookings, events and availability. That per-tenant isolation is the point of an embedded integration: you support the long tail of customer setups without maintaining an integration per customer.
Can AI agents use this Appointlet integration?
Yes. The same connection is exposed to your agents through the fastn MCP gateway, with permissions scoped per tenant and every call audited. An agent reads availability before proposing times to a customer.
Who maintains the Appointlet integration?
fastn does. When Appointlet changes an endpoint, deprecates a field or alters its auth, the fix lands in the connector rather than in your backlog, and your customers' connections keep working.
Can my product create, reschedule or cancel bookings in Appointlet automatically?
Yes, in each customer's own account. Your product reads live availability, places a booking, moves it or cancels it, and reacts when someone books or cancels on the other side.
Does it respect each team's own availability rules in Appointlet?
Yes. Working hours, buffers, lead times, resource capacity and routing rules are configured per customer and mapped rather than hard-coded, so an unusual setup works without code from you.
What can I build with the Appointlet integration?
A common starting point: read their meeting types and available times and present them inside your product. Teams also use it for the other use cases listed above, and expose it to agents for governed reads and writes.
How much does the Appointlet integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding Appointlet does not change your per-connector cost. You can start free with 3 connected accounts.
Add Appointlet to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.