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Top 23 Python Serverless Projects
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awesome-aws
A curated list of awesome Amazon Web Services (AWS) libraries, open source repos, guides, blogs, and other resources. Featuring the Fiery Meter of AWSome.
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Project mention: Launch Your First Serverless API: Hands-On with AWS Chalice on AWS Lambda | dev.to | 2025-08-19
If you're new to serverless, Chalice's minimal setup gets you deploying faster. Check the official GitHub for the latest updates: aws/chalice.
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serverless-application-model
The AWS Serverless Application Model (AWS SAM) transform is a AWS CloudFormation macro that transforms SAM templates into CloudFormation templates.
AWS SAM CLI, the command-line tool for building and deploying serverless applications, now supports AWS CloudFormation Language Extensions. The one I am most excited about is Fn::ForEach, which brings dynamic looping to your YAML templates, but it's close. If you, like me, have been copy-pasting resource definitions to infinity, that stops today.
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agent-squad
Flexible and powerful framework for managing multiple AI agents and handling complex conversations
Project mention: Orchestrating Multi-Agents: Unifying Fragmented Tools into Coordinated Workflows | dev.to | 2025-06-29AWS Agent Squad (GitHub)
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This has been one of the most requested features in SAM CLI history (#5647 had years of community upvotes), and the implementation covers the full command surface. Dynamic looping in YAML, supported end-to-end. Define your resources once, generate as many as you need, and deploy with the same workflow you already know.
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cloud-custodian
Rules engine for cloud security, cost optimization, and governance, DSL in yaml for policies to query, filter, and take actions on resources
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OpenMeter is an open-source metering engine maintained by Kong. It's built on the CloudEvents standard (a CNCF specification) and handles real-time event ingestion, deduplication, and aggregation at scale. The source code is on GitHub, and you can self-host it if you want full control.
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powertools-lambda-python
A developer toolkit to implement Serverless best practices and increase developer velocity.
The Lambda handler uses Powertools for AWS Lambda (Python) — a developer toolkit that gives you structured JSON logging, tracing, and metrics out of the box. I'm only using the Logger here, which gives me structured logs with correlation IDs and cold start tracking with a single decorator:
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opyrator
🪄 Turns your machine learning code into microservices with web API, interactive GUI, and more.
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streamalert
StreamAlert is a serverless, realtime data analysis framework which empowers you to ingest, analyze, and alert on data from any environment, using datasources and alerting logic you define.
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You add Lambda Web Adapter as a Lambda Layer, and your FastAPI app deploys to AWS Lambda with sam build && sam deploy. The same code you run locally with uvicorn goes straight to production without any modifications. No handler wrapper, no Mangum, no Dockerfile.
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serverless-patterns
Serverless patterns. Learn more at the website: https://serverlessland.com/patterns.
Want to keep learning? Check out Serverless Land — the go-to hub for all things Lambda and serverless with patterns, tutorials, and best practices. Or dive into the Sessions with SAM YouTube playlist that goes deeper into everything AWS SAM can do.
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kubetorch
Distribute and run AI workloads on Kubernetes magically in Python, like PyTorch for ML infra.
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terracotta
A light-weight, versatile XYZ tile server, built with Flask and Rasterio :earth_africa: (by DHI)
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Python Serverless discussion
Python Serverless related posts
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Usage-Based Billing for AI Agents with FastAPI and Kong
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NPM packages compromised, 271 antv, echarts-for-react, size-sensor, timeago
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Dynamic Looping Comes to AWS SAM
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Audit Logging Looked Like a Weekend Project. It Took Us 3 Months.
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Generating GitHub Actions Workflows with Kiro
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CloudFront Signed Cookies Authorization: A Powerful Session-Based Pattern for Private Content on AWS
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Building an Automated AWS Billing Report System with SAM and Microsoft Teams
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A note from our sponsor - SaaSHub
www.saashub.com | 16 Jun 2026
Index
What are some of the best open-source Serverless projects in Python? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | awesome-aws | 14,060 |
| 2 | Zappa | 11,849 |
| 3 | chalice | 11,058 |
| 4 | serverless-application-model | 9,559 |
| 5 | agent-squad | 7,652 |
| 6 | aws-sam-cli | 6,717 |
| 7 | cloud-custodian | 6,003 |
| 8 | spec | 5,786 |
| 9 | Zappa | 3,690 |
| 10 | powertools-lambda-python | 3,264 |
| 11 | opyrator | 3,136 |
| 12 | streamalert | 2,887 |
| 13 | bless | 2,760 |
| 14 | best-of-web-python | 2,726 |
| 15 | mangum | 2,122 |
| 16 | serverless-patterns | 1,804 |
| 17 | modal-examples | 1,217 |
| 18 | kubetorch | 1,210 |
| 19 | quillman | 1,205 |
| 20 | lambda-packs | 1,119 |
| 21 | invest-alchemy | 764 |
| 22 | terracotta | 757 |
| 23 | worker-comfyui | 703 |
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