Build on tinysend with the REST API, SDK, GitHub action, webhooks, and MCP.

Reference

API reference — REST API for newsletters, subscribers, posts, contacts, and senders
Transactional email — POST /v1/emails; replies come back to a real inbox with webhooks
TypeScript SDK — npm install tinysend, works in Node, Bun, Deno, Workers, browsers
better-auth — @tinysend/better-auth, sync sign-ups into a consented audience and route auth emails through tinysend
GitHub action — tiny-send/send@v1, email your audience from any workflow
Webhooks — receive real-time event notifications via HTTP
Limits and DNS records — sizes, rate limits, and DNS record types

For agents

Agent quickstart — register, get a token, send — no human needed
Agent authentication — auth.md, bearer tokens, scopes, claiming an identity
Agent skills — the skill files that teach agents the platform
MCP server — https://mcp.tinysend.com over the Model Context Protocol, OAuth or sk_ key