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When every action is an API call, an AI agent can do all the work: write, target, send, measure, repeat. Here’s what that looks like in practice.

POST /api/v1/lists, then a bulk contact import, up to 500
per call.POST /api/v1/templates, with the email's HTML.PATCH /api/v1/campaigns/{id}.POST /api/v1/campaigns/{id}/send.GET /api/v1/campaigns/{id} returns progress, sends, bounces.# 1. Create the list
curl -X POST https://emails.example.com/api/v1/lists \
-H "x-api-key: $MK_API_KEY" \
-d '{"name":"Active customers"}'
# 2. Import contacts in bulk
curl -X POST https://emails.example.com/api/v1/lists/$LIST_ID/contacts/bulk \
-H "x-api-key: $MK_API_KEY" \
-d '{"contacts":[{"email":"ada@example.com","firstName":"Ada"}]}'
# 3. Launch the campaign
curl -X POST https://emails.example.com/api/v1/campaigns/$CAMPAIGN_ID/send \
-H "x-api-key: $MK_API_KEY"
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