Urlbox API Authentication

How to authenticate Urlbox API requests: one Bearer API key plus a connectionId. MindCloud stores your Urlbox API key securely — set it once, never resend it.

Every Urlbox API request through MindCloud needs two things: a MindCloud API Key and a connectionId for your Urlbox 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 Urlbox connection in Connections. Urlbox uses an API key. You generate the key in your Urlbox account, then paste it in when you create the connection — MindCloud stores it securely and never returns it in a response.
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 Urlbox account that should run the action. MindCloud stores and refreshes the Urlbox 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 Check Render Status with an Urlbox connection looks like this:

curl --request POST \
  --url "https://connect.mindcloud.co/v2/universal/apps/urlbox/actions/check-render-status/run" \
  --header "Authorization: Bearer $MINDCLOUD_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
  "connectionId": "$CONNECTION_ID",
  "arguments": {}
}'

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

Connect Urlbox with a project secret key

You need a Urlbox account, access to a project secret key, and a confirmed email address.

Sign in to Urlbox
Open the Urlbox dashboard and sign in with your Urlbox account.
Confirm your email if prompted
If API requests fail with a NotConfirmed error, open the Urlbox confirmation email and verify the account before continuing.
Copy a project secret key
Use the default project created at signup or create a new project, then copy that project's secret key. This is the value you will paste into MindCloud.
Paste the secret into MindCloud
In the MindCloud Urlbox connection form, paste the project secret key into the API key field and save the connection.

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.