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Loops is an email platform for contacts, events, and transactional email. The Loops connector lets your Lovable app create and update contacts, send events, and send transactional email through a shared connection. It’s designed for apps that already keep contacts and email automations in Loops. Loops is available as an app + chat connector: one shared connection that works in the project chat while you build and in your published apps.
For standard transactional emails (signup confirmations, password resets, receipts, internal notifications), use the built-in Lovable Emails. Use the Loops connector when you need Loops contacts, mailing lists, events, or transactional email you already manage in Loops.
With Loops, your app can:
  • Create or update a contact by email or user ID
  • Find a contact by email or user ID
  • Subscribe or unsubscribe a contact on a mailing list
  • Send an event that starts a Loops automation
  • Send a published transactional email
Loops subscribes a new contact to campaign and workflow email by default. Ask to mark them unsubscribed when a signup should not receive marketing email. Sending a transactional email adds the recipient as a marketing contact only when you ask for that. The event name has to match the automation in Loops exactly. Most text fields on a contact, event, or transactional email accept up to 500 characters. It’s a good fit for waitlists, signup forms, and product notifications that should reach people from your Loops audience.

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Common use cases and example apps

These examples show what you can build with Loops, each with a prompt to start from.

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How to connect Loops

Who can create Loops connections depends on your plan and workspace settings. App + chat connectors are available by default on Free, Pro, and Business plans. On Enterprise plans, they are effectively disabled at first: Who can create connections and clients defaults to No one until an admin changes it in Connectors → Admin settings → App + chat connectors. You can create multiple Loops connections using different API keys, which is useful for separating environments (for example, development and production). When the connection is created, you can link it to the projects where you want to use it. Anyone building in a project can ask Lovable in chat to link their project to it.

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Prerequisites

Before connecting Loops, make sure you have:
API calls through this connector count toward your Loops team’s limit of 10 requests per second. Billing and rate limits are handled directly by Loops, not Lovable.

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Step 1: Get a Loops API key

A Loops API key lets your Lovable app authenticate with the Loops API. To create a Loops API key:
1

Open API settings

Sign in to Loops and open Settings → API.
2

Generate a key

Click Generate key. You can give the key a name, for example Lovable integration.
3

Copy the key

Copy the key and store it securely.
Your API key functions like a password. Keep it secure and never share it publicly. You’ll need it in the next step.
See Loops documentation for more: API introduction.

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Step 2: Connect Loops to Lovable

Paste the API key from Loops into the connection form.
1

Open Loops in Connectors

Open Connectors and select Loops. For the other places to open the catalog from, see Where to find connectors.
2

Add a connection

Click Add connection and select App + chat connector. The form is split into collapsible sections, Details, Configure connection, and Sharing.
3

Name the connection

Under Details, Lovable fills in a name for the connection, which you can change. The name is only used inside Lovable to identify the connection.
4

Configure the connection

Under Configure connection, paste your key into API key. The hint under the field reads “Your Loops API key”. Get API key next to the field opens Loops Settings → API.
5

Choose who can use this connection

Under Sharing, the connection is private to you by default and shows a Private label. To share it, click Share with others. Then add workspace members by email, or click Invite entire workspace to make the connection available to everyone in your Lovable workspace.See Who can use connections and clients for more information.
6

Connect

Click Connect. Lovable verifies the API key against the Loops API before saving the connection.
When connected, anyone building in a project can ask Lovable in chat to link their project to Loops (based on configured connection-level access). Your Lovable apps can then create and update contacts, send events, and send published transactional email.

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Limitations

The Loops connector cannot:
  • Receive Loops webhooks through the connector. Each Loops account supports one webhook endpoint, which you configure in Loops under Settings → Webhooks.
  • Support per-end-user Loops login. Each connection represents a single Loops account shared across all projects linked to it.
If a request fails because the API key was revoked in Loops, generate a new key under Settings → API and update the Lovable connection.

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Manage your Loops connection

Connections are managed from Connectors: select Loops, then open the connection.
  • Unlink projects to remove Loops access from specific projects while keeping the connection available for others. See Unlink projects from a connection for the steps.
  • Delete the connection to remove it from the workspace entirely. Deleting is permanent. It removes the credentials from all linked projects, and app features that use Loops stop working until a new connection is added. See Delete a connection for the steps and who can delete.