# Buttondown (https://devrel.directory/directory/buttondown)

Markdown-first newsletter tool with an API, popular for developer-audience newsletters.

Newsletter infrastructure that behaves like a developer tool: write in Markdown, automate everything through a REST API, and keep your subscriber list portable. It handles paid subscriptions, RSS-to-email automation, and public archives without marketing-suite bloat. A common choice for personal DevRel newsletters and product digests.

- Category: Tools
- Website: https://buttondown.com
- Docs: https://docs.buttondown.com
- llms.txt: https://buttondown.com/llms.txt
- Agent-readiness grade: C (46/100, machine-checked signals: serves an llms.txt; documentation entry point; pricing stated and dated; link verified recently)
- Pricing model (read 2026-07-26): freemium
- Tags: newsletter, content
- Added: 2026-07-12
- Last verified: 2026-08-01