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Showing content from https://github.com/datastrato/mcp-server-gravitino below:

datastrato/mcp-server-gravitino: MCP server for Apache Gravitino

MCP Server for Apache Gravitino

MCP server providing Gravitino APIs - A FastMCP integration for Apache Gravitino services.

Seamless integration with FastMCP for Gravitino APIs
Simplified interface for metadata interaction
Supports metadata operations for catalogs, schemas, tables, models, users, tags, and user-role management

This project uses uv as the dependency and virtual environment management tool. Please ensure uv is installed on your system.

Clone the repository:

git clone git@github.com:datastrato/mcp-server-gravitino.git

Navigate into the project directory:
Create a virtual environment:
Activate the virtual environment:
```
source .venv/bin/activate
```
Install dependencies:

Regardless of the Authorization, the following environment variables need to be set:

GRAVITINO_METALAKE=<YOUR_METALAKE> # default: "metalake_demo"
GRAVITINO_URI=<YOUR_GRAVITINO_URI>

GRAVITINO_URI: The base URL of your Gravitino server.
GRAVITINO_METALAKE: The name of the metakube to use.

mcp-server-gravitino supports both token-based and basic authentication methods. These mechanisms allow secure access to MCP tools and prompts and are suitable for integration with external systems.

Set the following environment variables:

GRAVITINO_JWT_TOKEN=<YOUR_GRAVITINO_JWT_TOKEN>

GRAVITINO_JWT_TOKEN: The JWT token for authentication.

Alternatively, you can use basic authentication:

GRAVITINO_USERNAME=<YOUR_GRAVITINO_USERNAME>
GRAVITINO_PASSWORD=<YOUR_GRAVITINO_PASSWORD>

GRAVITINO_USERNAME: The username for Gravitino authentication.
GRAVITINO_PASSWORD: The corresponding password.

Tool activation is currently based on method names (e.g., get_list_of_table). You can specify which tools to activate by setting the optional environment variable GRAVITINO_ACTIVE_TOOLS. The default value is *, which activates all tools. If just want to activate get_list_of_roles tool, you can set the environment variable as follows:

GRAVITINO_ACTIVE_TOOLS=get_list_of_roles

To launch the Gravitino MCP Server, run the following command:

uv \
--directory /path/to/mcp-gravitino \
run \
--with fastmcp \
--with httpx \
--with mcp-server-gravitino \
python -m mcp_server_gravitino.server

The meaning of each argument is as follows:

Argument Description uv Launches the UV CLI tool --directory /path/to/mcp-gravitino Specifies the working project directory with pyproject.toml run Indicates that a command will be executed in the managed environment --with fastmcp Adds fastmcp to the runtime environment without altering project deps --with httpx Adds httpx dependency for async HTTP functionality --with mcp-server-gravitino Adds the local module as a runtime dependency python -m mcp_server_gravitino.server Starts the MCP server using the package's entry module

Example configuration to run the server using Goose:

{
  "mcpServers": {
    "Gravitino": {
      "command": "uv",
      "args": [
        "--directory",
        "/Users/user/workspace/mcp-server-gravitino",
        "run",
        "--with",
        "fastmcp",
        "--with",
        "httpx",
        "--with",
        "mcp-server-gravitino",
        "python",
        "-m",
        "mcp_server_gravitino.server"
      ],
      "env": {
        "GRAVITINO_URI": "http://localhost:8090",
        "GRAVITINO_USERNAME": "admin",
        "GRAVITINO_PASSWORD": "admin",
        "GRAVITINO_METALAKE": "metalake_demo"
      }
    }
  }
}

mcp-server-gravitino does not expose all Gravitino APIs, but provides a selected set of optimized tools:

get_list_of_catalogs: Retrieve a list of catalogs
get_list_of_schemas: Retrieve a list of schemas
get_list_of_tables: Retrieve a paginated list of tables
get_table_by_fqn: Fetch detailed information for a specific table
get_table_columns_by_fqn: Retrieve column information for a table

get_list_of_tags: Retrieve all tags
associate_tag_to_entity: Attach a tag to a table or column
list_objects_by_tag: List objects associated with a specific tag

get_list_of_roles: Retrieve all roles
get_list_of_users: Retrieve all users
grant_role_to_user: Assign a role to a user
revoke_role_from_user: Revoke a user's role

get_list_of_models: Retrieve a list of models
get_list_of_model_versions_by_fqn: Get versions of a model by fully qualified name

Each tool is designed to return concise and relevant metadata to stay within LLM token limits while maintaining semantic integrity.

This project is licensed under the Apache License Version 2.0.

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