Missive API Authentication

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

Every Missive API request through MindCloud needs two things: a MindCloud API Key and a connectionId for your Missive 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 Missive connection in Connections. Missive uses an API key. You generate the key in your Missive 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 Missive account that should run the action. MindCloud stores and refreshes the Missive 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 Conversation with an Missive connection looks like this:

curl --request POST \
  --url "https://connect.mindcloud.co/v2/universal/apps/missive/actions/get-conversation/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 Missive account to run the action against. Missing or invalid Authorization returns 401, and a missing or mismatched connectionId returns 400.

Connect Missive with an API token

You need access to a Missive organization on the Productive plan.

Sign in to Missive
Sign in with the Missive account you want MindCloud to use.
Sign in
Open the API settings
In Missive preferences, open the API tab.
Preferences → API
Create a new API token
Click "Create a new token" and copy the generated token.
Paste the token into MindCloud
In the Missive connection form, paste the token 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.