Proofsource and Google Calendar: from answer to booked call

Connect Google Calendar for each agency member and Proofsource reads busy times, never event details, to offer slots that really are free. In the agency Inbox, the Send answer plus invite button replies to a prospect and puts a call on both calendars in one step, from the member's own calendar.

Connect Google Calendar See it in Proofsource

Live

Visit calendar.google.com ↗

app.proofsource.co/settings/email

Email and calendar, Calendar

ConnectedLive

MemberAsha, Northwind Agency

Calendarasha@northwindagency.example

PermissionsCreate events, read free or busy

Member	Calendar	Status
Asha	asha@northwindagency.example	Connected
Ben	ben@northwindagency.example	Connected
Chloe	chloe@northwindagency.example	Not connected

Disconnect

Sample data

A connected Google Calendar with the two permissions Proofsource uses. Sample data.

Proofsource and Google Calendar, in short

The facts, ready to quote.

Stage: Live for agency workspaces
Connects with: Google sign-in per member, in Settings, Email and calendar
Access it needs: Two narrow permissions: create events, and read free or busy times
Where it shows: Settings, Email and calendar, the agency calendar view and the agency Inbox

Live Live applies to agency workspaces. The calendar connection is per team member, not per client brand.

Why we love Google Calendar

In the makers' own words, from their own pages. Proofsource builds on it, never around it.

Scheduling that sees across your tools

Google Calendar works with Gmail, Meet and Tasks, so dated tasks appear on the calendar, and event details from email can be added in a click.

From workspace.google.com

Booking pages for clients and partners

You can set up a booking page so clients reserve time on their own, which takes the back and forth out of arranging a call.

From workspace.google.com

A calendar API that respects privacy

The free or busy query returns only busy time ranges for the calendars you ask about, so an app can find open slots without reading anyone's event titles.

From developers.google.com

How Proofsource uses Google Calendar

Reads a member's busy times and sends call invites from their own Google Calendar, for agency workspaces.

Connect
Link each member's calendar
A member signs in with Google and grants two narrow permissions. Proofsource asks for nothing broader.
Read
See when they are free
Proofsource reads only busy times, so a reply can offer real slots without opening anyone's diary.
Ship
Send the answer and the invite
In the agency Inbox, Send answer plus invite sends the reply and creates the call on the member's own Google Calendar.
Prove
Keep the pipeline current
A booked call moves the prospect forward in the pipeline, ready for the report you will walk through.

Set up Google Calendar in 4 steps

Open Settings, Email and calendar
Go to the Calendar section. Each agency member connects their own calendar.
Sign in with Google
Approve the two permissions: create calendar events and read free or busy times. Nothing else is requested.
Check the agency calendar view
Your busy times appear in the agency calendar view, so the team can see who is free before offering a slot.
Use Send answer plus invite
Open a prospect reply in the Inbox and send the answer with a call invite attached. Disconnect any time in the same screen.

app.proofsource.co/inbox

Inbox, Send answer + invite

Can we look at the report together this week?

Yes. Thursday 10:30 or Friday 14:00 both work, and I have sent an invite for the first.

Slot	Status
Thu 10:30	Free
Thu 11:30	Busy
Fri 14:00	Free

The invite is created on Asha's own calendar. Proofsource read only her busy times, not event titles or guests.

Send answer + inviteEdit reply

Sample data

A reply to a prospect with slots from real free time and the invite in one step.

What you unlock with Google Calendar

Real availability

Offer only slots that are free on the member's calendar.

Answer plus invite

Reply and book the call in one click from the agency Inbox.

Busy times only

Proofsource never reads event titles or guests.

Two narrow permissions

Create events and read free or busy, and nothing more.

Faster to a conversation

Less back and forth between a pitch and a booked call.

Respects your day

Invites are created on your own calendar, not a shared one.

Google AI Overviews

Google AI Mode

Questions about Proofsource and Google Calendar

What does Proofsource do with Google Calendar?

It reads a member's free or busy times and creates a call invite on that member's own calendar when they send an answer from the agency Inbox. It does not read event titles or guest lists.

What access does it ask for?

Two permissions only: creating calendar events and reading free or busy times. A member grants them with Google sign-in and no password reaches Proofsource.

Who can connect it?

Each member of an agency workspace connects their own calendar in Settings, Email and calendar. It is not offered to brand workspaces that are not agencies.

How do I disconnect?

Disconnect the calendar in Settings, Email and calendar. You can also remove Proofsource's access from your Google account permissions page.

What does Live mean?

It is open to agency workspaces, where each team member connects their own calendar.

How does this help AI visibility?

It shortens the path from showing a prospect where ChatGPT, Perplexity, Claude and the other engines leave them out to a booked call where you agree the fix.

Can I use a different calendar tool?

Yes. Cal.com is supported with an API key, in the same Calendar section of Settings.