MarleyFetch DocsYour SMTP. Our email API.

Send email through the Gmail, Microsoft 365, SES or custom SMTP account you already have, with one HTTPS call from any runtime.

Send your first email in 5 minutes

Connect an SMTP account, create an API key, make one request.

Quickstart

/send waits for delivery, /enqueue returns straight away, /send/batch fans out to a list or audience.

Sending email

Zero dependencies, about 1 kB. Works in Node.js, Cloudflare Workers, Vercel, Deno and Bun.

SDK

llms.txt, llms-full.txt, a Markdown copy of every page and the OpenAPI spec — point your coding assistant at them.

LLM resources