# autobahn > WebSocket client & server library, WAMP real-time framework - **URL**: https://www.freshcrate.ai/projects/autobahn - **Author**: pypi - **Category**: Frameworks - **Latest version**: `25.12.2` (2026-04-21) - **License**: Unknown - **Source**: https://github.com/crossbario/autobahn-python - **Homepage**: https://pypi.org/project/autobahn/ - **Language**: Python - **GitHub**: 2,536 stars, 766 forks - **Registry**: pypi (`autobahn`) - **Tags**: `asyncio`, `autobahn`, `crossbar`, `pubsub`, `pypi`, `realtime`, `rfc6455`, `rpc`, `twisted` ## Description # Autobahn|Python WebSocket & WAMP for Python on Twisted and asyncio. [![PyPI](https://img.shields.io/pypi/v/autobahn.svg)](https://pypi.python.org/pypi/autobahn) [![Python](https://img.shields.io/pypi/pyversions/autobahn.svg)](https://pypi.python.org/pypi/autobahn) [![CI](https://github.com/crossbario/autobahn-python/workflows/main/badge.svg)](https://github.com/crossbario/autobahn-python/actions?query=workflow%3Amain) [![CI (wstest)](https://github.com/crossbario/autobahn-python/workflows/wstest/badge.svg)](https://github.com/crossbario/autobahn-python/actions?query=workflow%3Awstest) [![CD (wheels)](https://github.com/crossbario/autobahn-python/workflows/wheels/badge.svg)](https://github.com/crossbario/autobahn-python/actions?query=workflow%3Awheels) [![CD (wheels-arm64)](https://github.com/crossbario/autobahn-python/workflows/wheels-arm64/badge.svg)](https://github.com/crossbario/autobahn-python/actions?query=workflow%3Awheels-arm64) [![CD (wheels-docker)](https://github.com/crossbario/autobahn-python/workflows/wheels-docker/badge.svg)](https://github.com/crossbario/autobahn-python/actions?query=workflow%3Awheels-docker) [![Docs](https://readthedocs.org/projects/autobahn/badge/?version=latest)](https://autobahn.readthedocs.io/en/latest/) [![License](https://img.shields.io/pypi/l/autobahn.svg)](https://github.com/crossbario/autobahn-python/blob/master/LICENSE) [![Downloads](https://img.shields.io/pypi/dm/autobahn.svg)](https://pypi.python.org/pypi/autobahn) --- **Quick Links**: [Source Code](https://github.com/crossbario/autobahn-python) - [Documentation](https://autobahn.readthedocs.io/en/latest/) - [WebSocket Examples](https://autobahn.readthedocs.io/en/latest/websocket/examples.html) - [WAMP Examples](https://autobahn.readthedocs.io/en/latest/wamp/examples.html) **Community**: [Forum](https://crossbar.discourse.group/) - [StackOverflow](https://stackoverflow.com/questions/tagged/autobahn) - [Twitter](https://twitter.com/autobahnws) - [IRC \#autobahn/chat.freenode.net](https://webchat.freenode.net/) **Companion Projects**: [Autobahn|JS](https://github.com/crossbario/autobahn-js/) - [Autobahn|Cpp](https://github.com/crossbario/autobahn-cpp) - [Autobahn|Testsuite](https://github.com/crossbario/autobahn-testsuite) - [Crossbar.io](https://crossbar.io) - [WAMP](https://wamp-proto.org) ## Introduction **Autobahn|Python** is a subproject of [Autobahn](https://crossbar.io/autobahn) and provides open-source implementations of - [The WebSocket Protocol](https://tools.ietf.org/html/rfc6455) - [The Web Application Messaging Protocol (WAMP)](https://wamp-proto.org/) for Python 3.7+ and running on [Twisted](https://twistedmatrix.com/) and [asyncio](https://docs.python.org/3/library/asyncio.html). You can use **Autobahn|Python** to create clients and servers in Python speaking just plain WebSocket or WAMP. **WebSocket** allows [bidirectional real-time messaging on the Web](https://crossbario.com/blog/post/websocket-why-what-can-i-use-it/) and beyond, while [WAMP](https://wamp-proto.org/) adds real-time application communication on top of WebSocket. **WAMP** provides asynchronous **Remote Procedure Calls** and **Publish & Subscribe** for applications in _one_ protocol running over [WebSocket](https://tools.ietf.org/html/rfc6455). WAMP is a _routed_ protocol, so you need a **WAMP Router** to connect your **Autobahn|Python** based clients. We provide [Crossbar.io](https://crossbar.io), but there are [other options](https://wamp-proto.org/implementations.html#routers) as well. Note **Autobahn|Python** up to version v19.11.2 supported Python 2 and 3.4+, and up to version v20.7.1 supported Python 3.5+, and up to version v21.2.1 supported Python 3.6+. ## Features - framework for [WebSocket](https://tools.ietf.org/html/rfc6455) and [WAMP](https://wamp-proto.org/) clients and servers - runs on [CPython](https://python.org/) and PyPy <https://pypy.org/> - runs under [Twisted](https://twistedmatrix.com/) and [asyncio](https://docs.python.org/3/library/asyncio.html) - implements WebSocket [RFC6455](https://tools.ietf.org/html/rfc6455) and Draft Hybi-10+ - implements [WebSocket compression](https://tools.ietf.org/html/draft-ietf-hybi-permessage-compression) - implements [WAMP](https://wamp-proto.org/), the Web Application Messaging Protocol - high-performance, fully asynchronous implementation - best-in-class standards conformance (100% strict passes with [Autobahn Testsuite](https://crossbar.io/autobahn#testsuite): [Client](https://autobahn.ws/testsuite/reports/clients/index.html) [Server](https://autobahn.ws/testsuite/reports/servers/index.html)) - message-, frame- and streaming-APIs for WebSocket - supports TLS (secure WebSocket) and proxies - Open-source ([MIT license](https://github.com/crossbario/autobahn-python/blob/master/LICENSE)) --- ## AI Policy > **IMPORTANT: A Note on Upcoming Policy Changes Regarding AI-Assisted Content** > > Up to and in ## Recent releases | Version | Date | Urgency | Changes | | --- | --- | --- | --- | | `25.12.2` | 2026-04-21 | Low | Imported from PyPI (25.12.2) | | `fork-68427734-oberstet_autobahn_python-strict_typing_test-202601141357` | 2026-01-14 | Low | # Development Build fork-68427734-oberstet_autobahn_python-strict_typing_test-202601141357 Development build from pull request ## Build Information - **Commit**: 1c7d45cd - **Build Date**: 2026-01-14 14:02:37 UTC - **Release Type**: development ## Included Platforms - **Linux**: x86_64, ARM64 (manylinux wheels + pure Python fallbacks) - **macOS**: Apple Silicon ARM64 - **Windows**: x86_64 ## Python Versions - **CPython**: 3.11, 3.12, 3.13, 3.14 - **PyPy**: 3.11 ## Installation Download | | `master-202601101042` | 2026-01-10 | Low | # Nightly Build master-202601101042 Automated nightly build from master branch ## Build Information - **Commit**: 1c7d45cd - **Build Date**: 2026-01-10 10:46:25 UTC - **Release Type**: nightly ## Included Platforms - **Linux**: x86_64, ARM64 (manylinux wheels + pure Python fallbacks) - **macOS**: Apple Silicon ARM64 - **Windows**: x86_64 ## Python Versions - **CPython**: 3.11, 3.12, 3.13, 3.14 - **PyPy**: 3.11 ## Installation Download the appropriate wheel for your platform: ```bash pi | | `master-202601101042` | 2026-01-10 | Low | # Nightly Build master-202601101042 Automated nightly build from master branch ## Build Information - **Commit**: 1c7d45cd - **Build Date**: 2026-01-10 10:46:25 UTC - **Release Type**: nightly ## Included Platforms - **Linux**: x86_64, ARM64 (manylinux wheels + pure Python fallbacks) - **macOS**: Apple Silicon ARM64 - **Windows**: x86_64 ## Python Versions - **CPython**: 3.11, 3.12, 3.13, 3.14 - **PyPy**: 3.11 ## Installation Download the appropriate wheel for your platform: ```bash pi | | `master-202601101042` | 2026-01-10 | Low | # Nightly Build master-202601101042 Automated nightly build from master branch ## Build Information - **Commit**: 1c7d45cd - **Build Date**: 2026-01-10 10:46:25 UTC - **Release Type**: nightly ## Included Platforms - **Linux**: x86_64, ARM64 (manylinux wheels + pure Python fallbacks) - **macOS**: Apple Silicon ARM64 - **Windows**: x86_64 ## Python Versions - **CPython**: 3.11, 3.12, 3.13, 3.14 - **PyPy**: 3.11 ## Installation Download the appropriate wheel for your platform: ```bash pi | | `master-202601101042` | 2026-01-10 | Low | # Nightly Build master-202601101042 Automated nightly build from master branch ## Build Information - **Commit**: 1c7d45cd - **Build Date**: 2026-01-10 10:46:25 UTC - **Release Type**: nightly ## Included Platforms - **Linux**: x86_64, ARM64 (manylinux wheels + pure Python fallbacks) - **macOS**: Apple Silicon ARM64 - **Windows**: x86_64 ## Python Versions - **CPython**: 3.11, 3.12, 3.13, 3.14 - **PyPy**: 3.11 ## Installation Download the appropriate wheel for your platform: ```bash pi | | `master-202601101042` | 2026-01-10 | Low | # Nightly Build master-202601101042 Automated nightly build from master branch ## Build Information - **Commit**: 1c7d45cd - **Build Date**: 2026-01-10 10:46:25 UTC - **Release Type**: nightly ## Included Platforms - **Linux**: x86_64, ARM64 (manylinux wheels + pure Python fallbacks) - **macOS**: Apple Silicon ARM64 - **Windows**: x86_64 ## Python Versions - **CPython**: 3.11, 3.12, 3.13, 3.14 - **PyPy**: 3.11 ## Installation Download the appropriate wheel for your platform: ```bash pi | | `master-202601101042` | 2026-01-10 | Low | # Nightly Build master-202601101042 Automated nightly build from master branch ## Build Information - **Commit**: 1c7d45cd - **Build Date**: 2026-01-10 10:46:25 UTC - **Release Type**: nightly ## Included Platforms - **Linux**: x86_64, ARM64 (manylinux wheels + pure Python fallbacks) - **macOS**: Apple Silicon ARM64 - **Windows**: x86_64 ## Python Versions - **CPython**: 3.11, 3.12, 3.13, 3.14 - **PyPy**: 3.11 ## Installation Download the appropriate wheel for your platform: ```bash pi | | `master-202601101042` | 2026-01-10 | Low | # Nightly Build master-202601101042 Automated nightly build from master branch ## Build Information - **Commit**: 1c7d45cd - **Build Date**: 2026-01-10 10:46:25 UTC - **Release Type**: nightly ## Included Platforms - **Linux**: x86_64, ARM64 (manylinux wheels + pure Python fallbacks) - **macOS**: Apple Silicon ARM64 - **Windows**: x86_64 ## Python Versions - **CPython**: 3.11, 3.12, 3.13, 3.14 - **PyPy**: 3.11 ## Installation Download the appropriate wheel for your platform: ```bash pi | | `master-202601101042` | 2026-01-10 | Low | # Nightly Build master-202601101042 Automated nightly build from master branch ## Build Information - **Commit**: 1c7d45cd - **Build Date**: 2026-01-10 10:46:25 UTC - **Release Type**: nightly ## Included Platforms - **Linux**: x86_64, ARM64 (manylinux wheels + pure Python fallbacks) - **macOS**: Apple Silicon ARM64 - **Windows**: x86_64 ## Python Versions - **CPython**: 3.11, 3.12, 3.13, 3.14 - **PyPy**: 3.11 ## Installation Download the appropriate wheel for your platform: ```bash pi | ## Citation - HTML: https://www.freshcrate.ai/projects/autobahn - Markdown: https://www.freshcrate.ai/projects/autobahn.md - Dependencies JSON: https://www.freshcrate.ai/api/projects/autobahn/deps _Generated by freshcrate.ai. Indexes pypi releases for AI-agent ecosystem packages._