Calendly API Authentication

How to authenticate Calendly API requests: one Bearer API key plus a connectionId. MindCloud runs the OAuth flow and refreshes Calendly tokens for you.

Every Calendly API request through MindCloud needs two things: a MindCloud API Key and a connectionId for your Calendly account. This page covers both, plus exactly how to send them, so you do not need to visit any other page to get authenticated.

Steps to authenticate

Create a MindCloud account at app.mindcloud.co if you do not already have one.
Generate a MindCloud API Key in API Keys. This is the Bearer token you send on every request. Keep it on your server.
Create a Calendly connection in Connections. Calendly uses OAuth. When you create the connection, you are redirected to sign in to Calendly and approve access — MindCloud stores the resulting tokens and refreshes them automatically, so your integration never has to.
Copy the connection’s connectionId — you will send it on every request alongside your MindCloud API Key.

How requests are authenticated

Authentication has two layers. Your MindCloud API Key authenticates the request to MindCloud, sent as a Bearer token in the Authorization header. The connectionId selects the connected Calendly account that should run the action. MindCloud stores and refreshes the Calendly credentials behind that connection, so you never send provider tokens with your requests.

Pass connectionId in the query string for GET and DELETE actions, and in the JSON body for POST, PUT, and PATCH actions.

For example, calling Get Current User with an Calendly connection looks like this:

curl --request GET \
  --url "https://connect.mindcloud.co/v1/universal/calendly/latest/actions/get-current-user" \
  --header "Authorization: Bearer $MINDCLOUD_API_KEY" \
  --get \
  --data-urlencode "connectionId=$CONNECTION_ID"

The Authorization: Bearer <your MindCloud API Key> header authenticates you to MindCloud; the connectionId tells MindCloud which Calendly account to run the action against. Missing or invalid Authorization returns 401, and a missing or mismatched connectionId returns 400.

Authorize Calendly with OAuth

Start the Calendly connection from MindCloud. Calendly will open an authorization page where you sign in and review the access request.

Sign in to Calendly if prompted
When Calendly redirects you to its authorization page, sign in with the Calendly account you want MindCloud to use.
Review the requested access
Check the requested access on the Calendly authorization page and make sure it matches the Calendly account you want to connect.
Approve the connection
Click the authorization button in Calendly to grant access and finish the OAuth flow.

Keep your key safe

Keep your MindCloud API Key on your server; do not ship it in browser code, mobile apps, public repositories, or logs. Anyone with the key can call the Universal API as your MindCloud account, across every connection you have created.