# Nebula-Block-Data/nebulablock-mcp-server [Health: Active]

**Category:** ☁️ Cloud Platforms  
**Repository:** https://github.com/Nebula-Block-Data/nebulablock-mcp-server  
**GitHub Stars:** 1  
**Views:** 3  
**Installs:** 0  
**Upvotes:** 0  
**Directory Page:** https://allmcps.com/mcp/nebula-block-data-nebulablock-mcp-server

## Description
integrates with the fastmcp library to expose the full range of NebulaBlock API functionalities as accessible tools

## Claude Desktop Quick Installation
Heuristic fallback — verify the package name and runner against the repository README before running it. Uses `npx` (confidence: low):

```json
"mcpServers": {
  "nebulablock-mcp-server": {
    "command": "npx",
    "args": ["-y","nebula-block-data-nebulablock-mcp-server"],
    "env": {
      "NEBULA_BLOCK_API_KEY": ""
    }
  }
}
```

**Requires environment variables:** `NEBULA_BLOCK_API_KEY` — the values above are empty placeholders; fill in real credentials before running (see the repository for what each one is for).

## Documentation

## What Nebula-Block-Data/nebulablock-mcp-server does

Nebula-Block-Data/nebulablock-mcp-server provides an MCP interface for the NebulaBlock API. Its Python application exposes NebulaBlock API functionality as tools that an MCP client can discover and call. The repository separates configuration, the application entry point, and tool definitions under `src/`, with tests in a separate `tests/` directory.

The available material describes the server at the API-integration level but does not enumerate individual tool names, input schemas, or response formats. Developers should therefore treat the supported operation set as the NebulaBlock API functionality implemented by the repository rather than assuming particular endpoints or actions.

## How it works

The application uses the `fastmcp` library to present NebulaBlock operations through the Model Context Protocol. Its documented startup command launches `src.main`, and the example output identifies stdio as the transport. An MCP client starts the local process and communicates with it through that transport.

Authentication is handled with a NebulaBlock API key. The key can be passed with the `--api-key` command-line option or loaded from a `.env` file using `NEBULA_BLOCK_API_KEY`. When both are provided, the command-line value takes precedence. This setup makes the server suitable for local MCP clients that can launch a configured Python or `uv` process.

The Nebula-Block-Data/nebulablock-mcp-server README includes an MCP client configuration example using `uv`, a project-directory argument, and the `src.main` module. The paths and key in that example are placeholders and must be replaced for a local installation.

## Setup and configuration

Clone the repository, create a Python virtual environment, and install the project in editable mode with the dependencies declared in `pyproject.toml`. The documented dependency workflow uses `uv pip install -e .`; the project includes an `uv.lock` file for dependency management.

After installation, start the server with:

```bash
uv run -m src.main
```

Alternatively, provide the credential directly:

```bash
python -m src.main --api-key YOUR_NEBULA_BLOCK_API_KEY
```

For environment-based configuration, create a `.env` file in the project root and set `NEBULA_BLOCK_API_KEY`. Do not treat the placeholder value in the documentation as a usable credential.

The repository documents integration with MCP-compatible environments and gives VS Code with an MCP extension as an example client. It does not provide client-specific configuration for every MCP application. Unit and integration tests can be run with `pytest` after the project dependencies are installed.

Nebula-Block-Data/nebulablock-mcp-server is licensed under the MIT License according to the README. The provided material does not specify NebulaBlock API quotas, pricing, supported API operations, or server deployment options beyond the local stdio process.

## Using this Nebula-Block-Data/nebulablock-mcp-server MCP server
Always refer to the official documentation for the most accurate and up-to-date information on how to configure and run this server.

_Full upstream README: https://allmcps.com/mcp/nebula-block-data-nebulablock-mcp-server/readme_