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by Mailchimp
Tag a contact
Adds or removes tags on one audience contact, creating any active tag that doesn't exist yet.
Updated Sep 27, 2026
tag-list-member.md
Tag a contact
Adds or removes tags on one audience contact, creating any active tag that doesn't exist yet.
Note: Set is_syncing to true to keep automations based on these tags from firing.
Set up
Use the first option your agent supports.
API (official)
- Base URL: https://{dc}.api.mailchimp.com/3.0
- Endpoint:
POST /lists/{list_id}/members/{subscriber_hash}/tags - Auth: send the header
Authorization: Bearer $MAILCHIMP_API_KEY - Get a key: https://us1.admin.mailchimp.com/account/api/
- Docs: https://mailchimp.com/developer/marketing/api/
Note: {dc} is your data center, the part of the API key after the dash, such as us6.
Before anything else, confirm access with the cheapest read-only call, like a list or a search. Never send or change anything to test access.
Rules
- Ask the user before anything that sends messages, costs money, or changes data, and say how many records it touches. One approval covers a batch the user has seen.
- Never print API keys.
Ways in
| Route | Source | Call | Required | Docs |
|---|---|---|---|---|
| Official | POST /lists/{list_id}/members/{subscriber_hash}/tags | API key in $MAILCHIMP_API_KEY | Docs |
Workflows using Tag a contact
No workflows yet
No published workflow uses Tag a contact yet.