Mailchimp
Email and SMS marketing platform, with audiences, campaigns and automation flows.
Updated Sep 27, 2026
Overview
Mailchimp is an email and SMS marketing platform. Its Marketing API manages audiences of contacts, organized with tags, segments and events, and creates and sends campaigns.
{dc} in the API URL is your account's data center, such as us6: the part
of the API key after the dash. The key works as a Bearer token (HTTP Basic
auth with any username also works), and an account gets 10 simultaneous
connections. Transactional email (formerly Mandrill) is a separate API at
https://mandrillapp.com/api/1.0 with its own key; its MCP server at
https://mandrillapp.com/mcp takes that key as a Bearer token.
Workflows
Workflows that use Mailchimp's tools.
Tools
What agents can reach at Mailchimp.
Add an event for a contactRecords a named event, with optional properties and time, for one audience contact.
- Create a campaign
Creates an unsent campaign for one audience, or a segment of it, with its subject line, sender and settings.
- Send a campaign
Sends a campaign to its recipients right away; an RSS campaign sends on its schedule instead.
- Tag a contact
Adds or removes tags on one audience contact, creating any active tag that doesn't exist yet.
- Create or update a contact
Adds a contact to an audience or updates the contact with that email address, with its subscription status and merge fields.