Buttondown

Automate your Buttondown newsletter workflows.
Connect it
In Keystile Automations → Connections → New connection, choose Buttondown and sign in. Your AI tools and workflows then use it through Keystile; they never see the password or key.How connecting works.
Try it from your AI tool
Using Keystile, in Buttondown: list subscribers (Retrieve subscribers from Buttondown).What it can do (4 actions)
| Action | What it does | Changes data |
|---|---|---|
| Create Subscriber | Create a new subscriber in Buttondown. | Yes |
| Custom API Call | Make a custom API call to a specific endpoint | Yes |
| List Subscribers | Retrieve subscribers from Buttondown. | |
| Send Email | Send an email to your Buttondown subscribers. | Yes |
Start a workflow when… (3 triggers)
- New Subscriber — Triggers when a new subscriber is created.
- Subscriber Confirmed — Triggers when a subscriber confirms their email.
- Email Sent — Triggers when an email is sent from Buttondown.
How Keystile protects it
Every Buttondown action is checked before it runs, whether it comes from an AI tool or a workflow. 3 of its actions change data; your rules, limits and budgets decide whether each is allowed, held for a person or stopped, and it all goes into the signed record.
Use Buttondown with your AI assistant — safelyClaude, Cursor or ChatGPT do the work; Keystile checks every action first.
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