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Top 23 Python API Projects
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Project mention: A Survey of Public APIs for Building a Football Live Score Site in 2026 — Part 1: News API Review | dev.to | 2026-09-05
Candidate source: Every API considered comes from the public-apis repository on GitHub. I chose it because it has more than 400,000 GitHub stars and offers a broad, well-organized set of categories and API options.
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AppSignal
Monitoring that respects your time & budget. APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.
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Project mention: QueuePool Limit Reached - When FastAPI Runs Out of Database Connections | dev.to | 2026-10-05
If your FastAPI app talks to a database through SQLAlchemy, chances are high you will meet it sooner or later. Not on your machine, of course. It shows up in production, after a few quiet hours, under load. And the reflex is always the same: the pool is too small, so let us make it bigger. pool_size=20, a bit more max_overflow on top, deploy, done.
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ccxt
A unified trading API with more than 100 crypto exchanges and prediction markets in JavaScript / TypeScript / Python / C# / PHP / Go / Java / Rust
Project mention: My WebSocket was open the whole time. It just stopped sending anything. | dev.to | 2026-08-31#22662 — watch_order_book hangs indefinitely: socket open, pings and pongs succeeding, no data, no exception raised.
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quivr
Opiniated RAG for integrating GenAI in your apps 🧠 Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Llama. Any Vectorstore: PGVector, Faiss. Any Files. Anyway you want.
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httpie
🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more. (by httpie)
There is already a popular project called httpie, so httpy would be really confusing in non written form. Beside that, i completely agree, the name could be better.
https://httpie.io/
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Project mention: CVE-2026-73228: Request Parsing Size-Limit Bypass in Django REST Framework | dev.to | 2026-08-22
Official GitHub Security Advisory: https://github.com/encode/django-rest-framework/security/advisories/GHSA-2m8g-3cmr-wg3w
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Project mention: Browser Use vs Skyvern Self-Hosted: Setup, Trade-offs, and Completion Verification | dev.to | 2026-10-03
git clone https://github.com/Skyvern-AI/skyvern.git cd skyvern cp .env.example .env # Configure the selected LLM provider or local Ollama endpoint in .env. docker compose up
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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LibreTranslate
Free and Open Source Machine Translation API. Self-hosted, offline capable and easy to setup.
Project mention: We stopped AI bot spam in our GitHub repo using Git's –author flag | news.ycombinator.com | 2026-05-18 -
public-api-lists
A curated list of free public APIs — searchable, community-maintained, with a free JSON API.
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Project mention: API Testing in Practice: Automating Postman Collections with Newman | dev.to | 2026-07-09
# .github/workflows/api-tests.yml name: API Tests on: push: branches: [main] pull_request: branches: [main] jobs: newman: runs-on: ubuntu-latest steps: - name: Checkout repository uses: actions/checkout@v4 - name: Set up Node.js uses: actions/setup-node@v4 with: node-version: '20' - name: Install Newman run: npm install -g newman newman-reporter-html - name: Run API tests run: | newman run api-tests.postman_collection.json \ --env-var baseUrl="https://httpbin.org" \ --reporters cli,html,junit \ --reporter-html-export reports/report.html \ --reporter-junit-export reports/report.xml - name: Upload test report if: always() uses: actions/upload-artifact@v4 with: name: newman-report path: reports/
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Project mention: Gorilla: Large Language Model Connected with APIs | news.ycombinator.com | 2026-06-22
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Gymnasium
A standard API for single-agent reinforcement learning environments, with popular reference environments and related utilities (formerly Gym)
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falcon
The no-magic web API and microservices framework for Python developers, with a focus on reliability and performance at scale.
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HTTP Prompt
An interactive command-line HTTP and API testing client built on top of HTTPie featuring autocomplete, syntax highlighting, and more. https://twitter.com/httpie
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Project mention: Hyperflask – Full stack Flask and Htmx framework | news.ycombinator.com | 2025-10-16
A lot of people in this thread mentioning the limitations of Flask and “why not FastAPI” etc - but I’ve found Litestar to be the best alternative and it has htmx support out of the box.
https://litestar.dev/
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Try https://www.klavis.ai, which is a open source MCP integration platform.
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CKAN
CKAN is an open-source DMS (data management system) for powering data hubs and data portals. CKAN makes it easy to publish, share and use data. It powers catalog.data.gov, open.canada.ca/data, data.humdata.org among many other sites.
Project mention: CKAN – an open-source DMS (data management system) | news.ycombinator.com | 2026-03-02 -
Cirq
Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.
2. Full SDK installations. Qiskit, Cirq, PennyLane. These are serious tools for serious work. They're also 200MB+ installs with Python dependency chains, Jupyter notebooks, and a learning curve that assumes you already understand what you're trying to learn. That's backwards.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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 API discussion
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Django-Modern-Rest 0.16.0: Typed REST APIs as Agent Tool Boundaries
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I tested 500 emails against HIBP. My validator found a major flaw.
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Django-moder-rest 0.16.0 release
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A note from our sponsor - AppSignal
www.appsignal.com | 10 Oct 2026
Index
What are some of the best open-source API projects in Python? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | public-apis | 485,863 |
| 2 | fastapi | 102,886 |
| 3 | ccxt | 44,251 |
| 4 | quivr | 39,578 |
| 5 | httpie | 38,500 |
| 6 | django-rest-framework | 30,201 |
| 7 | skyvern | 23,131 |
| 8 | LibreTranslate | 17,003 |
| 9 | public-api-lists | 16,029 |
| 10 | FlareSolverr | 15,811 |
| 11 | httpbin | 13,607 |
| 12 | gorilla | 13,042 |
| 13 | Gymnasium | 12,646 |
| 14 | falcon | 9,806 |
| 15 | HTTP Prompt | 9,107 |
| 16 | TikTokDownload | 8,865 |
| 17 | litestar | 8,501 |
| 18 | python-binance | 7,208 |
| 19 | TikTok-Api | 6,674 |
| 20 | klavis | 5,808 |
| 21 | pokeapi | 5,395 |
| 22 | CKAN | 5,127 |
| 23 | Cirq | 5,077 |
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