---
id: appier
version: "1.46.0"
license: Apache License, Version 2.0
license_treatment: permissive
maintenance: active
---

# appier — Appier Framework

License: permissive · Maintenance: active · Downloads: 4.4M/mo

## What it is and what it does

Appier is a web framework that lets you build HTTP applications by defining handler methods as class members and decorating them with route specifications. It sits between minimal frameworks and full-featured ones—you get request routing, HTTP method handling, and basic app lifecycle management without the overhead of larger frameworks.

The framework uses a simple decorator pattern (@appier.route) to bind URLs and HTTP methods to handler functions, then serves them via a built-in WSGI server. It has no external runtime dependencies, making it quick to install and deploy. The trade-off is that you're responsible for most application logic—templating, database integration, and middleware are not built in.

Use it for:

- Build simple REST APIs or microservices that need HTTP routing without a heavy framework
- Prototype web applications quickly when you want decorator-based routing without framework complexity
- Create WSGI-compatible applications for deployment in standard Python hosting environments

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Appier is a lightweight Python web framework for building HTTP applications with minimal boilerplate, using decorators and class-based routing.

Yes, if you need a minimal web framework with zero dependencies and straightforward routing. The permissive license and active maintenance make it safe to use. Not recommended if you need built-in templating, ORM, or middleware—reach for a larger framework instead.

## Install

pip install appier
uv add appier
poetry add appier

## Installing appier

Before you install: Installation is straightforward with no runtime dependencies. The package is marked active with a recent release.

License in practice: Licensed under Apache License, Version 2.0 (permissive), allowing commercial and private use with minimal restrictions.

Quickstart:

pip install appier

import appier

class HelloApp(appier.App):
    @appier.route("/", "GET")
    def hello(self):
        return "Hello World"

HelloApp().serve()

Verify before relying:

- Current state of repository maintenance and community activity beyond release date
- Whether Python 2.6–3.0 support claims are actively maintained or legacy classifiers

## Package facts

- License: Apache License, Version 2.0 (permissive)
- Python support: unspecified
- Install friction: low
- Maintenance: active
- Downloads: 4.4M/month (top 5,000 on PyPI)
- Known vulnerabilities: none known

## Tags

python web framework, lightweight http server, decorator-based routing, wsgi application framework, fast web app development, web-framework, wsgi, lightweight

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