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Back to Integrations

Loops

Manage contacts and send emails with Loops

Loops is a Emailintegration for Sim, the AI workspace where teams build and deploy AI agents. Sim's Loops integration provides 10 Loops tools that AI agents can use inside Sim's visual workflow builder. Loops connects with an API key. Free to start at sim.ai.

View docs

Last updated June 12, 2026

Overview

Integrate Loops into the workflow. Create and manage contacts, send transactional emails, and trigger event-based automations.

How to automate Loops with Sim

  1. 01

    Create a free account

    Sign up at sim.ai in seconds. No credit card required. Your workspace is ready immediately.

  2. 02

    Add a Loops block

    Open your workspace, drag a Loops block onto the workflow builder, and paste in your Loops API key.

  3. 03

    Configure, connect, and run

    Pick the tool you need, wire in an AI agent for reasoning or data transformation, and run. Your Loops automation is live.

Agent templates

Ready-to-use templates featuring Loops. Click any to build it instantly.

Supported tools

10 Loops tools available in Sim

Create Contact

Create a new contact in your Loops audience with an email address and optional properties like name, user group, and mailing list subscriptions.

Update Contact

Update an existing contact in Loops by email or userId. Creates a new contact if no match is found (upsert). Can update name, subscription status, user group, mailing lists, and custom properties.

Find Contact

Find a contact in Loops by email address or userId. Returns an array of matching contacts with all their properties including name, subscription status, user group, and mailing lists.

Delete Contact

Delete a contact from Loops by email address or userId. At least one identifier must be provided.

Send Transactional Email

Send a transactional email to a recipient using a Loops template. Supports dynamic data variables for personalization and optionally adds the recipient to your audience.

Send Event

Send an event to Loops to trigger automated email sequences for a contact. Identify the contact by email or userId and include optional event properties and mailing list changes.

List Mailing Lists

Retrieve all mailing lists from your Loops account. Returns each list with its ID, name, description, and public/private status.

List Transactional Emails

Retrieve a list of published transactional email templates from your Loops account. Returns each template with its ID, name, last updated timestamp, and data variables.

Create Contact Property

Create a new custom contact property in your Loops account. The property name must be in camelCase format.

List Contact Properties

Retrieve a list of contact properties from your Loops account. Returns each property with its key, label, and data type. Can filter to show all properties or only custom ones.

Frequently asked questions

Sim's Loops integration adds 10 Loops tools to the AI agents you build in Sim's visual workflow builder — no code required. Manage contacts and send emails with Loops. Teams often pair Loops with Rippling and Linear in the same agent.

You can create Contact, update Contact, find Contact, delete Contact, and send Transactional Email with Loops in Sim, plus 5 more Loops tools listed on this page. Each runs as a tool inside an AI agent block, so an agent can chain Loops with services like Rippling and Linear and apply LLM reasoning between steps.

Connecting Loops takes about five minutes: (1) Create a free account at sim.ai. (2) Create an agent in your workspace. (3) Drag a Loops block onto the workflow builder. (4) Paste your Loops API key to authenticate — you can find it in your Loops account settings. (5) Pick a tool such as "Create Contact", wire up its inputs, and click Run — your agent is live.

Add a Loops block to your agent and select "Create Contact" as the tool. Create a new contact in your Loops audience with an email address and optional properties like name, user group, and mailing list subscriptions. Fill in the required fields — inputs can reference outputs from earlier steps, such as text generated by an AI block or data fetched from another integration. No code is required.

Rippling

Manage workers, departments, custom objects, and company data in Rippling

Linear

Interact with Linear issues, projects, and more

SAP Concur

Manage expense reports, travel requests, cash advances, and more in SAP Concur

GitHub

Interact with GitHub or trigger workflows from GitHub events

Sim

Start automating Loops today

Build your first AI agent with Loops in minutes. Connect to every tool your team uses. Free to start, no credit card required.