---
title: Elysia
description: Elysia is an ergonomic TypeScript framework with end-to-end type safety, built for Bun.
url: "https://vercel.com/kb/elysia"
published: 2026-06-11
last_updated: 2026-08-05
install_vercel_plugin: npx plugins add vercel/vercel-plugin
---

# Elysia

Elysia is an ergonomic TypeScript framework with end-to-end type safety, built for Bun.

## All Elysia guides

- [How to ship an Elysia app on Vercel](/kb/guide/ship-a-elysia-app-on-vercel): Deploy a Elysia app to Vercel with zero configuration. Learn how to ship from a template, the Vercel CLI, or Git, and configure response streaming, middleware, cron jobs, the Bun runtime, and Observability.

## Explore other topics in the Vercel Knowledge Base

- [Jev from TypeSafe AI](/kb/jev-from-typesafe-ai): Jev is TypeSafe AI's System One model for fast, typed decisions. It evaluates supplied context and returns choices, scores, and probabilities that applications can use to classify requests, route tasks, and assess proposed actions without generating prose.
- [Vercel Sandbox](/kb/vercel-sandbox): The compute primitive designed to safely run untrusted or user-generated code on Vercel.
- [FDE Field Notes](/kb/fde): Insights from our work with customers. Explore the patterns, diagnostics, and recommendations Vercel’s Forward Deployed Engineers use in production.
- [Software Factory](/kb/software-factory): Software factories put an agent on every stage of your development loop: triage, planning against a live repo checkout, implementation verified with your own checks, and independent review. Work items become draft PRs while you keep the judgment calls.