Connect Loops and Sub-Zap by Zapier to power AI-driven automation

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Choose a Trigger

Choose an Action

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Zapier makes it easy to integrate Loops with Sub-Zap by Zapier - no code necessary. See how you can get setup in minutes.

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1. Choose trigger event

2. Choose action

1. Select the event

Setup

Test

App

Trigger event

Choose a trigger event

Choose a trigger

A trigger is the event that starts your Zap—like a "Campaign Email Sent" from Loops.

Add your action

An action happens after the trigger—such as "Call a Sub-Zap" in Sub-Zap by Zapier.

You’re connected!

Zapier seamlessly connects Loops and Sub-Zap by Zapier, automating your workflow.

Supported triggers and actions

Zapier helps you create workflows that connect your apps to automate repetitive tasks. A trigger is an event that starts a workflow, and an action is an event a Zap performs.

Campaign Email Sent
Triggers when a campaign email is sent to a recipient (warning: will trigger for every recipient of your campaign).
Trigger
Instant
Try It
Contact Unsubscribed From Mailing List
Triggers when a contact is unsubscribed from a mailing list.
Trigger
Instant
Try It
Contact Created
Triggers when a contact is created in Loops.
Trigger
Instant
Try It
Loop Email Sent
Triggers when a loop email is sent to a recipient (warning: will trigger for every recipient of your loop's emails).
Trigger
Instant
Try It
- Email
  Required
- First Name
- Last Name
- Source
- Subscribed
- User Group
- User ID
- Mailing Lists
Action
Write

- Email
- User ID
- Event Name
  Required
- Event Properties
- Mailing Lists
Action
Write
- Email
  Required
- First Name
- Last Name
- Source
- Subscribed
- User Group
- User ID
- Mailing lists
Action
Write

- Email
  Required
- First Name
- Last Name
- Source
- Subscribed
- User Group
- User ID
- Mailing Lists
Action
Search or write
- Select Your Account
  Required
- Select Your Sub-Zap
  Required
- Parent_zap_directions
- Live_testing_info
- Blank_sample_notice
- Zap_path_run_id
Action
Write

Contact Subscribed to Mailing List
Triggers when a contact is subscribed to a mailing list.
Trigger
Instant
Try It
Contact Unsubscribed
Triggers when a contact is unsubscribed from your audience in Loops.
Trigger
Instant
Try It
Contact Deleted
Triggers when a contact is deleted in Loops.
Trigger
Instant
Try It
Transactional Email Sent
Triggers when a transactional email is sent to a recipient.
Trigger
Instant
Try It
- Email
  Required
Action
Write
- Transactional Id
  Required
- Email
  Required
- Add contact to your audience
- Data Variables
Action
Write
- Contact Email
  Required
Action
Search
- Input / Argument List
- Zap_id
- Blank_sample_notice
Trigger
Instant
Try It
- Output / Return Values
- Zap_path_run_id
- Zap_run_id
Action
Write

For AI agents & developers

Use Loops and Sub-Zap by Zapier with AI agents and code

Beyond Zap workflows. Call Loops and Sub-Zap by Zapier actions directly from your AI client or your codebase, using the same 9,000+ app integrations Zapier already runs.

No code

Connect via Zapier MCP

Expose Loops and Sub-Zap by Zapier actions as tools in any MCP client. Authenticate once, then call them in natural language.

Example actions on this page

Add Contact
Call a Sub-Zap

Works with

Claude · ChatGPT · Cursor · any MCP-compatible client

Connect Zapier MCP

Typescript

Call from code with the Zapier SDK

Trigger Loops and Sub-Zap by Zapier actions from backend services, scripts, or agent code.

Install

# TypeScript / Node
npm install @zapier/zapier-sdk

Run an action

import { createZapierSdk } from '@zapier/zapier-sdk';

const zapier = createZapierSdk();
await zapier.runAction({ /* loops / sub-zap-by-zapier action */ });

Run the SDK docs

There is no Python package yet. SDK is TypeScript-only (@zapier/zapier-sdk). The MCP server URL is personal to your account; get it at zapier.com/mcp.

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Customers who say using Zapier has made them better at their job

25m

Customers have created over 25 million Zaps on the platform

6 mins

The average user takes less than 6 minutes to set up a Zap

Connect Loops and Sub-Zap by Zapier to integrate crucial parts of your business

With Zapier, you can integrate everything from basic data entry to end-to-end processes. Here are some of the business-critical workflows that people automate with Zapier.

Automate your lead management and improve conversions

With Zapier, you can automate every part of your lead funnel and give yourself the best chance at converting leads. Automate everything from lead capture to outreach to reporting—and close more deals as a result.

Create more impactful campaigns with automation

Measuring campaign performance across platforms can get chaotic. Plus, digging up the right metrics costs you precious time and effort. With Zapier, you can create a centralized view of your performance, skillfully manage your lists, and ensure your campaigns drive ROI across the business.

Provide world-class support with a little help from automation

Support reps can't be productive when they have to track down crucial information for every incident or ticket. With Zapier, you can automatically send your reps the context they need to resolve tickets quickly and create a seamless customer experience.

Automate your way to actionable, up-to-date data

The days of manually exporting and importing data are over. With Zapier, you can send data where it needs to go, in the format you need it—so you can centralize your data and unlock more insights.

Resolve incidents faster with automation

Your technical support team wants to focus on tech tickets rather than admin work. With Zapier, you can automate everything from ticket creation to routing to inter-team communication—eliminating friction from incident management and increasing speed to resolution.

Learn how to automate Sub-Zap by Zapier on the Zapier blog

Make work flow with AI

Level up your Loops to Sub-Zap by Zapier integration with AI. Extract, summarize, and transform your integration data with leading AI models like OpenAI, Anthropic, and more.

Learn about AI automation

About Loops

Loops is a platform for SaaS companies to send marketing and transactional email.

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Related categories

Email Newsletters

About Sub-Zap by Zapier

Build reusable Zap components and systems by building and calling "Sub-Zaps".

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