For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
Postman
PricingEnterprise
Contact SalesSign InSign Up for Free
HomeDocs
HomeDocs
      • Overview
        • Mailchimp Setup
Postman API Platform

Product

  • Postman Overview
  • Enterprise
  • Spec Hub
  • Flows
  • Agent Mode
  • API Catalog
  • Fern
  • Postman CLI
  • Integrations
  • Workspaces
  • Plans and pricing

API Network

  • App Security
  • Artificial Intelligence
  • Communication
  • Data Analytics
  • Database
  • Developer Productivity
  • DevOps
  • Ecommerce
  • eSignature
  • Financial Services
  • Payments
  • Travel

Resources

  • Postman Docs
  • Academy
  • Community
  • Templates
  • Intergalactic
  • Videos
  • MCP Servers

Legal and Security

  • Legal Terms Hub
  • Terms of Service
  • Postman Product Terms
  • Security
  • Website Terms of Use

Company

  • About
  • Careers and culture
  • Contact us
  • Partner program
  • Customer stories
  • Student programs
  • Press and media
Twitter iconLinkedIn iconGithub iconYouTube iconInstagram iconDiscord icon
Download Postman
Privacy Policy

© 2026 Postman, Inc.

On this page
  • Create a Mailchimp API key
  • Create an audience ID variable
  • Next steps
Postman FlowsTemplates

Set up Mailchimp authorization for Postman Flows

||View as Markdown|
Was this page helpful?
Previous

Explore ready-to-use Flows in the Postman Flows Catalog

Next

Build flows overview

Built with

To run Postman Flows templates that use Mailchimp, you need to set up authorization between Mailchimp and Postman. You can do this by creating an API key in Mailchimp and saving the ID of your subscriber list as an environment variable in Postman.

Before you get started, you need:

  • A Mailchimp account
  • A Postman environment to run the flow

Create a Mailchimp API key

To create a Mailchimp API key to use with Postman Flows, do the following:

  1. Log in to Mailchimp.

  2. From your account settings, navigate to Account & billing.

  3. Select Extras > API keys.

  4. Select Create A Key. Enter a name for the key, and then select Generate Key.

  5. Copy the key you generated, excluding the suffix that contains the data center identifier. For example, if the key value is YOUR_API_KEY-us00, don’t include -us00.

  6. Save the key value as a variable in your Postman environment named Mailchimp_Api_Key.

  7. Save the data center identifier as a variable in your Postman environment named Mailchimp_DC.

Create an audience ID variable

To create a variable that enables the flow to access your subscriber list, do the following:

  1. In the Mailchimp sidebar, select Audience > All contacts.

  2. Select Settings > Audience name & defaults.

  3. Copy the value for Audience ID.

  4. Save the audience ID as a variable in your Postman environment named Mailchimp_List_ID.

Next steps

After you’ve completed your Mailchimp configuration, you can return to the flow template or set up authorization for another integration in Postman.

  • Set up HubSpot authorization for Postman Flows
  • Set up Notion authorization for Postman Flows
  • Set up Slack authorization for Postman Flows
  • Set up Stripe authorization for Postman Flows