Outlook

curl -X POST "https://api.sb/leaseline.app/meetings/book?mode=try" \
  -H "Authorization: Bearer $SB_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"contact":"contacts/rosa-northgate","at":"next free 30 minutes, weekdays 10:00 to 16:00 America/Chicago"}'

npx startup-builder do Meeting.book --try --data '{"contact":"contacts/rosa-northgate","at":"next free 30 minutes, weekdays 10:00 to 16:00 America/Chicago"}'

{
  "name": "do",
  "arguments": {
    "mode": "try",
    "code": "return await $.Meeting.book({ contact: 'contacts/rosa-northgate', at: 'next free 30 minutes, weekdays 10:00 to 16:00 America/Chicago' })"
  }
}

import { $ } from 'startup-builder'

const result = await $.try.Meeting.book({ contact: 'contacts/rosa-northgate', at: 'next free 30 minutes, weekdays 10:00 to 16:00 America/Chicago' })

 1{
 2  "$type": "Meeting",
 3  "mode": "try",
 4  "stored": false,
 5  "contact": "rosa@northgate-rentals.com",
 6  "at": "2026-10-29T15:30:00Z",
 7  "calendar": "outlook",
 8  "invite": {
 9    "subject": "Leaseline and the Northgate rent spreadsheet, 30 minutes",
10    "from": "dana@leaseline.app"
11  },
12  "agenda": "How Northgate tracks rent and renewals today"
13}

Connect onceCopy Anchor Link

1. Call Integration.connect with system: 'mailboxes' and venue: 'outlook', then open the connectUrl it returns and sign in as the Microsoft work or personal account you send from.
2. Approve the four grants Microsoft lists. A work account whose admin restricts apps asks the admin once; the connectUrl waits an hour for it.
3. Authenticate the sending Domain once with Domain.authenticate, which writes SPF, DKIM and DMARC and checks them before the first send.

What your agents doCopy Anchor Link

Calls on your own account are free.

What it holdsCopy Anchor Link

Events and webhooksCopy Anchor Link

Any Event can wake a Workflow, and a Watch delivers it to your endpoint, signed (Events and webhooks).

LimitsCopy Anchor Link

Field mapCopy Anchor Link

What try does hereCopy Anchor Link

Renders the exact email or invite and returns it with the time it would go; nothing reaches Outlook and no draft or event is saved.

How long a connection lastsCopy Anchor Link

A connection lasts 90 days from its last use: Microsoft replaces the refresh token on every use, and your agents use it daily.

The platform asks you to reconnect 7 days before it runs out; until you do, a call that needs it refuses with needs-reauth.

Plays and strategiesCopy Anchor Link

Used byCopy Anchor Link

• Agent tasks: Launch day · Link pitches · Answer every inbound · Personal first touch
• Services: Booked first calls · Demand generation

ReferenceCopy Anchor Link

6 calls, each with its path and price

Call	Path	Price
Contact.enroll	POST /contacts/enroll	Free
Message.schedule	POST /messages/schedule	Free
Message.broadcast	POST /messages/broadcast	Free
Meeting.book	POST /meetings/book	Free
Conversation.answer	POST /conversations/answer	Free
Contact.unsubscribe	POST /contacts/unsubscribe	Free