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Tally API Authentication

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

Every Tally API request through MindCloud needs two things: a MindCloud API Key and a connectionId for your Tally 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

  1. Create a MindCloud account at app.mindcloud.co if you do not already have one.
  2. Generate a MindCloud API Key in API Keys. This is the Bearer token you send on every request. Keep it on your server.
  3. Create a Tally connection in Connections. Tally uses an API key. You generate the key in your Tally account, then paste it in when you create the connection — MindCloud stores it securely and never returns it in a response.
  4. 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 Tally account that should run the action. MindCloud stores and refreshes the Tally 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 User Info with an Tally connection looks like this:

curl --request GET \
  --url "https://connect.mindcloud.co/v1/universal/tally/latest/actions/get-user-info" \
  --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 Tally account to run the action against. Missing or invalid Authorization returns 401, and a missing or mismatched connectionId returns 400.

Set up your Tally API key

API keys in Tally are tied to the user who creates them and inherit that user's access to forms and workspaces.

  1. Open API keys in your Tally settings

    In Tally, go to Settings > API keys.

  2. Create a new API key

    Click Create API key.

  3. Store the key safely

    Copy the API key when Tally shows it and store it somewhere safe. Tally will not show the key again later.

  4. Paste the key into MindCloud

    Enter the copied value into the MindCloud Tally connection as the API Key credential.

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.