Connect Mailchimp and PostHog 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 Mailchimp with PostHog - 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 "New Campaign" from Mailchimp.

Add your action

An action happens after the trigger—such as "Capture Event" in PostHog.

You’re connected!

Zapier seamlessly connects Mailchimp and PostHog, 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.

- Audience
- Status
Trigger
Polling
Try It
- Audience
- Link
  Required
- Track all links clicks
Trigger
Polling
Try It
- Store
  Required
Trigger
Polling
Try It
- Store
Trigger
Polling
Try It
New SMS Campaign
Triggers when a new SMS campaign is created.
Trigger
Polling
Try It

- Audience
  Required
- Note_about_samples
Trigger
Instant
Try It
- Campaign Name
- Audience
  Required
- Segment
- Tags
- Email Subject
  Required
- Preview_text
- From_name
  Required
- From Email Address
  Required
- To_name
- Content Type
Action
Write

- Campaign
  Required
Action
Write
- Audience
  Required
- Email Address
  Required
- Custom Event Name
  Required
- Properties
Action
Write
- Audience
  Required
- Subscriber Email
  Required
- New Email
- Status
  Required
- Double Opt-In
- Update Existing
- Replace Groups
- Groups
- Language Code
- Tag(s)
Action
Write
- Audience
  Required
- Email Address
  Required
- Delete Contact
Action
Write
- Campaign
  Required
Action
Write
- Audience
  Required
- Email Address
  Required
- Note
  Required
Action
Write
- Stop on error
  Required
- HTTP Method
  Required
- URL
  Required
- Query string parameters
- Additional request headers
- Body
Action
Write
- Store
  Required
- Email Address
  Required
Action
Search
- Search
  Required
- Audience
Action
Search
- Audience
  Required
- Tag name
  Required
Action
Search or write
- Organization
  Required
- Project
  Required
- Action
  Required
Trigger
Instant
Try It

- Audience
- Trigger each time a subscriber opens an email
Trigger
Polling
Try It
New Audience
Triggers when a new audience is added to your MailChimp accounts.
Trigger
Polling
Try It
- Audience
  Required
- Note_about_samples
Trigger
Instant
Try It
- Audience
  Required
Trigger
Instant
Try It
- Audience
  Required
- Segment or Tag
  Required
Trigger
Polling
Try It
- Audience
  Required
- Email Address
  Required
Action
Write
- Campaign
  Required
Action
Write
- Audience
  Required
- Tag name
  Required
Action
Write
- Name
  Required
- Company
  Required
- Address1
  Required
- Address2
- City
  Required
- State
  Required
- Zip
  Required
- Country
  Required
- Phone
- Permission_reminder
  Required
- Email_type_option
  Required
- From_name
  Required
- From_email
  Required
- Subject
  Required
- Language
  Required
- Notify_on_subscribe
- Notify_on_unsubscribe
- Double_optin
- Marketing_permissions
- Use_archive_bar
Action
Write
- Audience
  Required
- Email Address
  Required
- Deletion_info
Action
Write
- Audience
  Required
- Tag
  Required
- Email Address
  Required
Action
Write
- SMS Campaign
  Required
Action
Write
- Audience
  Required
- Tag
  Required
- Email Address
  Required
Action
Write
- Name
  Required
Action
Search
- Audience
  Required
- Tag name
  Required
Action
Search
- Name
  Required
- Campaign Name
- Audience
  Required
- Segment
- Tags
- Email Subject
  Required
- Preview_text
- From_name
  Required
- From Email Address
  Required
- To_name
- Content Type
Action
Search or write
- Search
  Required
- Audience
- Audience
  Required
- Subscriber Email
  Required
- New Email
- Status
  Required
- Double Opt-In
- Update Existing
- Replace Groups
- Groups
- Language Code
- Tag(s)
Action
Search or write
- Organization
  Required
- Project
  Required
- Event Name
  Required
- User PostHog Distinct ID
  Required
- Event Properties
- Timestamp
Action
Write

For AI agents & developers

Use Mailchimp and PostHog with AI agents and code

Beyond Zap workflows. Call Mailchimp and PostHog 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 Mailchimp and PostHog actions as tools in any MCP client. Authenticate once, then call them in natural language.

Example actions on this page

Archive Subscriber
Capture Event

Works with

Claude · ChatGPT · Cursor · any MCP-compatible client

Connect Zapier MCP

Typescript

Call from code with the Zapier SDK

Trigger Mailchimp and PostHog 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({ /* mailchimp / posthog 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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93%

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

Practical ways you can use Mailchimp and PostHog

Send PostHog events to Mailchimp subscribers.

Automatically connect product analytics to marketing efforts. When an action is performed in PostHog, Zapier adds a detailed custom event to a Mailchimp subscriber profile. This workflow creates a clearer picture of user engagement for better-targeted marketing.

Business Owner

Try it

Log unsubscribes in PostHog.

Track audience churn and spot trends to improve retention strategies. When someone unsubscribes from your Mailchimp audience, Zapier captures this event in PostHog. By analyzing this data, support teams can identify triggers for dissatisfaction and take proactive measures.

Customer Support Ops

Try it

Track Mailchimp campaign interactions in PostHog.

Feed marketing campaign data into product analytics. For instance, whenever a Mailchimp campaign link is clicked, Zapier triggers an event in PostHog. This helps you correlate campaign effectiveness with user behavior on your product dashboard.

Data Science

Try it

Learn how to automate Mailchimp on the Zapier blog

Make work flow with AI

Level up your Mailchimp to PostHog integration with AI. Extract, summarize, and transform your integration data with leading AI models like OpenAI, Anthropic, and more.

Learn about AI automation

Frequently Asked Questions about Mailchimp + PostHog integrations

New to automation with Zapier? You're not alone. Here are some answers to common questions about how Zapier works with Mailchimp and PostHog

What is required to set up the integration between Mailchimp and PostHog?

To set up the integration between Mailchimp and PostHog, you'll need access to both platforms. Ensure you have admin permissions on your PostHog account and an API key from Mailchimp. Our integration uses triggers in PostHog to start flows in Mailchimp, so setting up event tracking on important user interactions in PostHog is crucial.

How do I trigger a campaign in Mailchimp based on a PostHog event?

You can trigger a Mailchimp campaign using specific events that occur in PostHog by setting them as triggers. For instance, if a user completes a purchase, this event can be tracked in PostHog and set to trigger an email campaign through Mailchimp.

Can I segment my audience in Mailchimp using data from PostHog?

Yes, you can segment your audience in Mailchimp using data tracked by PostHog. By using specific properties or events captured by our platform, you can create segmented lists for more targeted email campaigns within your Mailchimp account.

Are there any limitations when synchronizing data between Mailchimp and PostHog?

While our integration allows seamless syncing of event-based triggers, limitations may arise based on API call limits or plan restrictions within either platform. It's important to review both platforms' current usage policies to ensure compliance.

How often does the data sync between PostHog and Mailchimp occur?

Data sync frequency between PostHog and Mailchimp depends on the specifics of the integration settings you choose. Typically, triggers are processed as soon as events are ingested by our system; however, for batch actions like contact updates, it may follow periodic schedules.

Can I customize what triggers or actions are available with this integration?

Yes, our integration allows customization of available triggers or actions. You can tailor specific events from your user journey in PostHog as triggers for various automated actions within your Mailchimp workflows.

What kind of troubleshooting options are available if my integration between PostHog and MailChimp isn't working as expected?

If you're encountering issues with the integration, first ensure all API keys are correctly inserted and have valid permissions. Check both services’ status pages for outages or maintenance notifications. Our support team is also available to assist with more complex troubleshooting needs.

About Mailchimp

Mailchimp is an email and marketing automation platform built for growing businesses. Turn email and SMS into revenue.

Learn moreLearn moreHelpHelp

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About PostHog

PostHog is the single platform for building successful products. Open-source product analytics, web analytics, session replay, feature flags, surveys, and more.

Learn moreLearn moreHelpHelp

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Connect Mailchimp and PostHog to power AI-driven automation

Top companies trust Zapier to automate work that solves their unique business problems—no coding required.

How Zapier works

Choose a trigger

Add your action

You’re connected!

Supported triggers and actions

Use Mailchimp and PostHog with AI agents and code

Connect via Zapier MCP

Call from code with the Zapier SDK

Zapier is the automation platform of choice for 87% of Forbes Cloud 100 companies in 2023

Practical ways you can use Mailchimp and PostHog

Send PostHog events to Mailchimp subscribers.

Log unsubscribes in PostHog.

Track Mailchimp campaign interactions in PostHog.

Learn how to automate Mailchimp on the Zapier blog

How to add Mailchimp subscribers from ClickFunnels

How to add Mailchimp subscribers from a webhook

How to integrate Mailchimp with WordPress

Make work flow with AI

Frequently Asked Questions about Mailchimp + PostHog integrations

Connect Mailchimp to PostHog on the world's largest no-code automation platform