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Databend

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Enables AI agents to connect to Databend databases safely with a session sandbox that keeps production read-only while agents experiment.

databendlabsавтор: databendlabs
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Описание

Enables AI agents to connect to Databend databases safely with a session sandbox that keeps production read-only while agents experiment.

README

PyPI - Version

Connect AI agents to your Databend database safely. Session sandbox keeps production read-only while agents experiment. Works with Codex, Cursor, Claude Code, Gemini CLI, and any MCP-compatible client. Learn more at databend.com/mcp.

Usage

  1. Get your Databend DSN. Format: databend://user:password@host:port/database?warehouse=your_warehouse Get it from Databend Cloud or the docs.
  2. Session sandbox safety: writes only to mcp_sandbox_{session_id}_*; production stays read-only. Use get_session_sandbox_prefix to retrieve the live prefix.
  3. Configure your MCP client.

Standard config works in most tools:

{
  "mcpServers": {
    "databend": {
      "command": "uv",
      "args": ["tool", "run", "--from", "mcp-databend@latest", "mcp-databend"],
      "env": {
        "DATABEND_DSN": "databend://user:password@host:port/database?warehouse=your_warehouse"
      }
    }
  }
}
Codex

Use the Codex CLI to add the Databend MCP server:

codex mcp add databend \
  --env DATABEND_DSN='databend://user:password@host:port/database?warehouse=your_warehouse' \
  -- uv tool run --from mcp-databend@latest mcp-databend
Claude Code

Use the Claude Code CLI to add the Databend MCP server:

claude mcp add databend \
  --env DATABEND_DSN='databend://user:password@host:port/database?warehouse=your_warehouse' \
  -- uv tool run --from mcp-databend@latest mcp-databend
Cursor

Click the button to install:

Install in Cursor

Then open Cursor Settings -> MCP, select Databend, click Edit, and add DATABEND_DSN to the env section. Cursor keeps the command as a single string:

{
  "mcpServers": {
    "Databend": {
      "command": "uv tool run --from mcp-databend@latest mcp-databend",
      "env": {
        "DATABEND_DSN": "databend://user:password@host:port/database?warehouse=your_warehouse"
      },
      "args": []
    }
  }
}

Or install manually:

Go to Cursor Settings -> MCP -> Add new MCP Server. Paste command uv tool run --from mcp-databend@latest mcp-databend, then click Edit and add DATABEND_DSN in env.

Gemini CLI

Add the standard config above to your Gemini CLI settings.json.

Safety Guarantees

Scope Rules
Read access SELECT/SHOW/DESCRIBE/EXPLAIN/LIST on any object.
Write access Only objects prefixed with mcp_sandbox_{session_id}_*.
Sandbox objects CATALOG, DATABASE, TABLE, VIEW, STAGE, FUNCTION, USER, ROLE, TASK, PIPE, STREAM, CONNECTION, WAREHOUSE, SEQUENCE, PROCEDURE, DICTIONARY, TAG, FILE FORMAT, NETWORK POLICY, PASSWORD POLICY, MASKING POLICY, ROW ACCESS POLICY, NOTIFICATION INTEGRATION, WORKLOAD GROUP, DYNAMIC TABLE, INDEX (AGGREGATING/INVERTED/NGRAM/VECTOR).
Write rules CREATE/CREATE OR REPLACE/DROP/ALTER on sandbox objects; DML only on sandbox tables (INSERT/UPDATE/DELETE/TRUNCATE/COPY/MERGE/REPLACE); GRANT/REVOKE only on sandbox objects/principals; `ALTER ... SET

Available Tools

Tool Description
execute_sql Execute SQL with sandbox validation
execute_multi_sql Execute multiple SQL statements
show_databases List all databases
show_tables List tables in database
describe_table Get table schema
get_session_sandbox_prefix Get current session prefix
list_session_sandbox_databases List sandbox databases
create_session_sandbox_database Create sandbox database
show_stages / list_stage_files / create_stage Stage management
show_connections List connections

Configuration

Variable Default Description
DATABEND_DSN - Connection string
LOCAL_MODE false Use embedded Databend
DATABEND_QUERY_TIMEOUT 300 Query timeout (seconds)
DATABEND_MCP_SAFE_MODE true Enable sandbox validation. Set to false to allow all SQL permitted by the Databend user.
DATABEND_MCP_SERVER_TRANSPORT stdio Transport: stdio, http, sse
DATABEND_MCP_BIND_HOST 127.0.0.1 Bind host for HTTP/SSE
DATABEND_MCP_BIND_PORT 8001 Bind port for HTTP/SSE

Local mode stores data in .databend/.

Development

git clone https://github.com/databendlabs/mcp-databend
cd mcp-databend
uv sync

# Run locally
uv run python -m mcp_databend.main

# Debug
npx @modelcontextprotocol/inspector uv run python -m mcp_databend.main

# Test
uv run pytest

from github.com/databendlabs/mcp-databend

Установка Databend

У этого сервера нет опубликованного пакета — он собирается из исходников. Открой репозиторий и следуй инструкции в README.

▸ github.com/databendlabs/mcp-databend

FAQ

Databend MCP бесплатный?

Да, Databend MCP бесплатный — установка в пару кликов через Unyly без оплаты.

Нужен ли API-ключ для Databend?

Нет, Databend работает без API-ключей и переменных окружения.

Databend — hosted или self-hosted?

Self-hosted: сервер запускается локально на твоей машине командой из раздела установки.

Как установить Databend в Claude Desktop, Claude Code или Cursor?

Открой Databend на unyly.org, выбери вкладку своего клиента (Claude Desktop, Claude Code, Cursor) и нажми Install — конфиг сгенерируется автоматически, без правки JSON.

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