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by Mailchimp
Send a campaign
Sends a campaign to its recipients right away; an RSS campaign sends on its schedule instead.
Updated Sep 27, 2026
send-campaign.md
Send a campaign
Sends a campaign to its recipients right away; an RSS campaign sends on its schedule instead.
Note: Sends to real people: confirm the campaign and its audience with the user first. Resolve what GET /campaigns/{campaign_id}/send-checklist lists before sending.
Set up
Use the first option your agent supports.
API (official)
- Base URL: https://{dc}.api.mailchimp.com/3.0
- Endpoint:
POST /campaigns/{campaign_id}/actions/send - 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 /campaigns/{campaign_id}/actions/send | API key in $MAILCHIMP_API_KEY | Docs |
Workflows using Send a campaign
No workflows yet
No published workflow uses Send a campaign yet.