Use AssistCall with Calendly

AssistCall answers your business calls 24/7 and can send each call, message and booking to Calendly through Webhook, Live API actions, Zapier, Make, n8n.

Calendly: Online scheduling links that let clients pick an open time on your calendar, used by consultants, coaches, sales teams and service businesses.

Connects

Example call

A caller asks for a 30-minute consult next week. The receptionist checks Calendly's open times through the API, the caller picks Wednesday at 2pm, and the meeting is booked with POST /invitees. The owner sees it in Calendly and gets AssistCall's email summary.

During a call, the receptionist reads open times for an event type from Calendly's API with your personal access token and offers the caller real slots.
The caller is booked into the chosen slot through Calendly's Scheduling API (POST /invitees), which needs a paid Calendly plan.
When a caller would rather pick a time later, a Zapier or Make workflow creates a single-use Calendly scheduling link and emails it to the caller.

How it connects

Webhook: Signed JSON for every call, message and booking, sent to any HTTPS URL you choose.
Live API actions: During the call, the receptionist calls the app's API with your key to look up or create records.
Zapier: Send AssistCall events to a Zap (Webhooks by Zapier, Catch Hook), then use the app's Zapier actions. Needs a paid Zapier plan.
Make: Start a Make scenario with a custom webhook and use the app's Make modules.
n8n: Start an n8n workflow with a webhook node, then call the app with its node or an HTTP request.
Call forwarding: Forward your business line to AssistCall when busy, after hours or always. Works with any carrier.

About Calendly's API

Self-serve API: you can create a key in your account
Style: REST (API v2)
Authentication: Personal access token or OAuth 2.0
On Zapier: yes. On Make: yes.

Personal access tokens are created on Calendly's Integrations & apps page. Basic GET and POST calls work on any plan. Webhooks and the Scheduling API, which books meetings through POST /invitees, need a paid plan (Professional/Standard or higher). Open times come from GET /event_type_available_times, with at most 31 days per request.

Not included: no one-click Calendly app, no listing in Calendly's marketplace, no two-way sync, and no partnership with Calendly.

Researched by the AssistCall team and checked against Calendly's public pages on October 24, 2026. Calendly is a trademark of Calendly. AssistCall is an independent product of Starling Global LLC and is not affiliated with, endorsed by, sponsored by or approved by Calendly.

More Calendars and scheduling integrations

Google Calendar: Google's online calendar, included with Gmail and Google Workspace, which many small businesses use to track appointments, jobs and staff schedules.
Microsoft Outlook Calendar: The calendar in Outlook and Microsoft 365, used by offices that run their email, meetings and scheduling on Microsoft 365.
Square Appointments: Square's booking and payments app for appointment businesses such as salons, barbershops, spas and wellness studios.
Acuity Scheduling: Online appointment scheduling from Squarespace with intake forms, packages and payments, used by solo practitioners and small service teams.
Cal.com: Open-source scheduling links and booking pages, hosted or self-hosted, used by consultants, agencies and software teams.
Microsoft Bookings: Microsoft 365's booking pages and shared appointment calendar for teams, connected to Outlook and Teams.

All product and company names in this directory are trademarks or registered trademarks of their respective owners, used only to identify systems AssistCall can send call information to or receive information from. Their use does not imply any affiliation with or endorsement by their owners. AssistCall connects using signed webhooks, the business's own API keys, automation platforms (Zapier, Make, n8n) the business sets up in its own account, and call forwarding. AssistCall does not provide one-click connectors, marketplace apps, certifications or two-way record or calendar sync, and does not sign HIPAA business associate agreements. Vendor features, plans and API access can change; information last checked October 24, 2026.