Bosch Flow MCP server

bosch-flow-mcp

<!-- mcp-name: io.github.partymola/bosch-flow-mcp -->

MCP server for Bosch eBike Flow (Smart System / BES3). Tracks battery health, charge cycles, component versions, service history, live state-of-charge, and per-ride activity data (distance, elevation, power, assist-mode, CO2).

Disclaimer

This is an unofficial, community-built project. It is not affiliated with, authorised by, or endorsed by Robert Bosch GmbH, Bosch eBike Systems, or SingleKey ID. "Bosch", "eBike Flow", and related marks belong to their owners and are used here only to describe interoperability.

login) and reads only your own data. It is read-only - it never modifies your bike, battery, or account.

• It signs in with your own Bosch eBike Flow account (via the standard SingleKey ID

eBike Flow app uses. No credentials, secrets, or protection measures are extracted, bypassed, or circumvented - every identifier here is already publicly documented.

• It uses the same public OAuth client (one-bike-app, PKCE) that the official Bosch

Otherwise the same app API your phone already uses is queried with your own login.

• When you supply your own EU Data Act API credentials, the official Data Act API is used.

time** if Bosch alters their systems.

• This is an undocumented, unofficial interface that **may change or stop working at any

terms of service in your jurisdiction.

• You are responsible for ensuring your use complies with Bosch's and SingleKey ID's

• Provided with no warranty under GPLv3+ (see LICENSE). Use at your own risk.

Features

rider-vs-motor energy share, assist-mode split, CO2, ABS events, plus a per-point GPS/speed/elevation/power track

• Battery state snapshots over time (charge cycles, energy delivered, degradation trends)
• Components and firmware versions (drive unit, battery, ConnectModule, head unit, remote, ABS)
• Service book history and software update log (EU Data Act client only)
• Live state-of-charge from ConnectModule via mobile API
• Battery capacity tester results (EU Data Act client only)
• Per-ride activities: distance, elevation, speed, cadence, measured rider power, calories,

• Auto-sync on demand - tools fetch fresh data without a cron job

Requirements

• Python 3.13+ (tested on 3.13 and 3.14, on Linux, macOS and Windows, in CI)
• uv (recommended) or pip
• A Bosch eBike Flow account (free, register at the Bosch eBike Flow app)
• A BES3 Smart System eBike registered in the app

Install

pip install bosch-flow-mcp

Or run it without installing with uvx bosch-flow-mcp. For development from a clone:

git clone https://github.com/partymola/bosch-flow-mcp
cd bosch-flow-mcp
uv venv --python 3.13 .venv
uv pip install -e .

Auth

.venv/bin/bosch-flow-mcp auth

Opens your browser to Bosch login. The auth flow uses the one-bike-app public client with PKCE - no API keys or registration needed. Just your Bosch Flow account.

Shortened. The full README is on GitHub.