Zappa

Deploy WSGI applications on AWS Lambda and API Gateway with ease.

EstablishedOpen SourceLow lock-in
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Pricing

Free tier

Flat rate

Adoption

→Stable

License

Open Source

Data freshness

Aging · Jun 8, 2026

Overview

What is Zappa?

Zappa is a tool for deploying Python-based web applications written in the WSGI framework to AWS Lambda and API Gateway, enabling serverless execution. It simplifies the process of setting up and managing cloud deployments without requiring deep knowledge of AWS services.

Key differentiator

“Zappa stands out by simplifying the deployment of Python WSGI applications on AWS Lambda and API Gateway, making serverless architecture accessible to developers familiar with Python web frameworks like Flask and Django.”

Capability profile

Capability Radar

Ease of StartEcosystemValueMaturityFlexibilityScale Ready

Honest assessment

Strengths & Weaknesses

↑ Strengths

Serverless deployment of Python WSGI applications on AWS Lambda and API Gateway.medium

Automatic configuration and management of AWS resources.medium

Support for continuous integration and deployment workflows.medium

Integration with popular Python web frameworks like Flask and Django.medium

↓ Weaknesses

Steep learning curve for non-Python developershigh

API requires Python-specific patterns, TypeScript SDK is community-maintained

Frequent breaking changes between versionsmedium

v0.1 to v0.2 migration required rewriting chain definitions

Limited language support beyond Pythonhigh

Primary focus on Python, limited official support for other languages

Performance overhead due to cold start issues in AWS Lambdamedium

Cold starts can introduce latency in serverless applications

Fit analysis

Who is it for?

✓ Best for

Developers looking for a simple way to deploy Flask or Django apps on AWS Lambda without deep knowledge of AWS services.

Teams that want to leverage serverless architecture but prefer using Python and familiar web frameworks.

✕ Not a fit for

Projects requiring real-time processing or low-latency responses, as cold start times can be significant with AWS Lambda.

Applications needing complex orchestration across multiple services beyond what Zappa provides out-of-the-box.

Cost structure

Pricing

Free Tier

Available

Open source — free to use

Starts at

$0

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Works well with

S3

Next step

Get Started with Zappa

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →