mcbebop

An MCP server for the Parrot Bebop 2, so an agent can talk to the drone without anyone writing code for each question.

Parrot abandoned the Bebop line, but the aircraft is still a capable, cheap platform and its protocol is fully described by Parrot's own XML, which this package vendors. Every one of the 264 commands is reachable; nothing is hand-wrapped.

Status: in development. Not flight-tested. See the safety section.

What it talks to

Safety

Commands are classified by consequence. Observing and configuring are open; anything that can spin a motor or change the flight envelope refuses until arm() is called with a reason, and re-locks on a timer and on disconnect. Landing and Emergency are deliberately never locked, because refusing to land an airborne aircraft is the more dangerous answer.

connect(target="sim") runs everything against a protocol-accurate simulator, which is where anything involving motion should be rehearsed.

The simulator streams video

The simulator can push RTP/H.264 exactly as the aircraft does, so a viewer's whole video path can be developed and measured without a drone. It answers the handshake with arstream2_server_stream_port: 5004, sends nothing until ardrone3.MediaStreaming.VideoEnable arrives with 1, then streams from its own 5004 to whatever arstream2_client_stream_port the client named, and stops on a 0, on a link loss, or at shutdown.

python -m mcbebop.sim --video clip.h264                 # steady 30 fps
python -m mcbebop.sim --video clip.h264 --start-offset random --seed 7
python -m mcbebop.sim --video flight.rtpcap             # a real capture, replayed

MCBEBOP_SIM_VIDEO_SOURCE=clip.h264 does the same for connect(target="sim").

Two kinds of source, and they are different instruments:

Make the first from any video, at the resolution the aircraft streams:

ffmpeg -i anything.mp4 -t 10 -vf scale=856:480 -r 30 \
  -c:v libx264 -preset ultrafast -pix_fmt yuv420p -g 30 -f h264 clip.h264

-f h264 already writes Annex-B, so no bitstream filter is wanted; h264_mp4toannexb converts the other direction and ffmpeg rejects it here.

Make the second from a real drone. Start the recorder first, because RTP is connectionless and anything sent before the bind is gone, then enable video from a session that holds the ARSDK link:

python -m mcbebop.media.capture flight.rtpcap --seconds 30   # binds 55004

--start-offset random is worth knowing about. It begins mid-GOP, which is what a viewer switched on while the drone is already flying is handed, and --seed makes a failure repeatable. Parameter sets repeat about once a second on the packetised path, which is what lets a late joiner recover at all.

Install

uvx mcbebop
claude mcp add mcbebop -- uvx mcbebop

Licence

This package is MIT (LICENSE), and it vendors one third-party component: src/mcbebop/arsdk-xml/ is Parrot SA's own protocol definition, BSD-3-Clause (LICENSE-arsdk-xml). It ships in both the sdist and the wheel because nothing here can decode a single command without it. What that snapshot is and how it differs from upstream is recorded in arsdk-xml/PROVENANCE.md.

So the distribution as a whole is MIT AND BSD-3-Clause.