BACpypes3 - Python library for BACnet applications

BACpypes provides a BACnet application layer and network layer written in Python for daemons, scripting, and graphical interfaces. This version is the next generation for Python3.8+, completely overhauled from the Python2.5+ version using async/await methods and asyncio for communications.

MCP (Model Context Protocol) integration

The bacpypes3.mcp module exposes the BACpypes3 CLI commands (whois, read, write, rpm, wirtn, BBMD ops, …) as MCP tools with natural names (who_is, read_property, write_property, read_property_multiple, who_is_router_to_network, …). It has three personalities:

Importable library. Each tool is a plain async function returning JSON-serializable Python values. Inject an Application and call the tools directly.
Stand-alone MCP server. python -m bacpypes3.mcp <BACpypes flags> builds an Application via SimpleArgumentParser and serves the tools over stdio using FastMCP.
Embedded server. A long-running BACnet server can inject its own Application and start mcp.serve_http(...) as a concurrent asyncio task, so an LLM agent can drive it over HTTP without fighting the host application's stdout. See samples/mini-device-with-mcp.py for the reference pattern.

The mcp and pydantic packages are declared as an optional extra and are only imported when a server is actually built; the tool functions are usable without them:

pip install -e ".[mcp]"      # to run the server

Release files for bacpypes3 0.0.107

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for bacpypes3 0.0.107
File	Size	Uploaded
bacpypes3-0.0.107.tar.gz	246.1 kB	Sep 15, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for bacpypes3 0.0.107
File	Interpreter	ABI	Platform	Reset
bacpypes3-0.0.107-py3-none-any.whl 276.2 kB Sep 15, 2026	Python 3	none	any	Details

Total release size: 522.4 kB

Release files / bacpypes3-0.0.107.tar.gz

Download URL	bacpypes3-0.0.107.tar.gz
Size	246.1 kB
Tags	Source
SHA-256 checksum How to use checksums	`45c0ffe36ea309c7259cb94d6f9ba3bfa1e2805b825727903a7156b6152c7e29`
BLAKE2b-256 checksum How to use checksums	`028829cbd4cb5703476c5cb697eb390d4f9764b963014c1049f0c5e453e7375d`
Upload date	Sep 15, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`uv/0.8.20`

Release files / bacpypes3-0.0.107-py3-none-any.whl

Download URL	bacpypes3-0.0.107-py3-none-any.whl
Size	276.2 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`e3a2d08cd0caf984e472a7a0c852f29694c9db2f9c438eda25b3dec7539ee28b`
BLAKE2b-256 checksum How to use checksums	`95bda184f33562d293e99a42e66267caef03f386b652a40153e3aa216e48c2de`
Upload date	Sep 15, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`uv/0.8.20`