---
title: Runtimes
description: sently supports Node.js, Bun, Deno, and Cloudflare Workers through focused integrations.
icon: Monitor
source: "README.md"
---

HTTP transports use `fetch` and suit the supported runtimes. SMTP requires an adapter when automatic detection is unavailable.

| Runtime | SMTP adapter subpath |
| --- | --- |
| Node.js | `sently/adapters/node` |
| Bun | `sently/adapters/bun` |
| Deno | `sently/adapters/deno` |
| Cloudflare Workers | `sently/adapters/cf` |

<Cards><Card title="Adapters" href="/docs/guides/adapters" /></Cards>