What does CnosDB MCP Server do?
It connects MCP clients (like Claude Desktop) to a CnosDB database, enabling natural language or programmatic requests to list databases, tables, view schemas, and run SQL queries.
CnosDB MCP Server
@cnosdb
Basic information
About CnosDB MCP Server
An MCP server for CnosDB.
CnosDB MCP Server config
No standard config provided
This server doesn't expose a parseable MCP config block in its README. See the repository for install instructions.
RepositoryCnosDB MCP Server tools
Tool list not available yet
This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.
We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.
Overview
What is CnosDB MCP Server?
CnosDB MCP Server is a Model Context Protocol (MCP) server that enables Claude Desktop and other MCP clients to interact with a CnosDB database. It allows users to list databases, list tables, describe table schemas, and execute arbitrary SQL queries against a CnosDB instance. Designed for developers and data analysts who manage time‑series data in CnosDB.
How to use CnosDB MCP Server?
Clone the repository, create a Python virtual environment, install dependencies, then configure Claude Desktop by adding a JSON entry in claude_desktop_config.json specifying the uv command, the server script path, and connection environment variables. The server exposes four tools: query, list_databases, list_tables, and describe_table.
Key features of CnosDB MCP Server
- Execute SQL queries against CnosDB
- List all databases in the CnosDB instance
- List tables within a specific database
- Display the schema of a given table
- Environment‑based configuration for host, port, username, and password
Use cases of CnosDB MCP Server
- Query time‑series data stored in CnosDB via natural language in Claude
- Inspect database structure and table schemas during development
- Automate database exploration and reporting without a separate client
- Integrate CnosDB data into AI‑assisted analysis workflows
Frequently asked questions
What dependencies are required to run CnosDB MCP Server?
Python 3.12 and the `uv` tool are required. Development dependencies are installed via `pip install -r requirements.txt`. No additional runtime dependencies beyond a running CnosDB instance.
How does CnosDB MCP Server authenticate to the database?
Authentication is configured via environment variables `CNOSDB_USERNAME` and `CNOSDB_PASSWORD` in the MCP client configuration file. Default credentials are `root` / `CnosDB#!`.
Where does the data live and how is it accessed?
The server connects to a CnosDB service specified by `CNOSDB_HOST` and `CNOSDB_PORT` (defaults `127.0.0.1:8902`). All queries are executed against that remote database; the server does not store or cache data locally.
What transports does CnosDB MCP Server support?
The MCP server uses the standard `stdio` transport, invoked via `uv` from the Claude Desktop configuration. It does not support HTTP or WebSocket transports natively.
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