tech.unravel/mcp-vegalite-server

Name: tech.unravel/mcp-vegalite-server
Author: unravel-team

@unravel-team

代码仓库

关于 tech.unravel/mcp-vegalite-server

An MCP Server for creating beautiful visualisation using Vegalite (via vl-convert)

基本信息

分类

其他

许可证

MIT

运行时

makefile

传输方式

stdio

发布者

unravel-team

配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "mcp-vegalite-server-unravel-team": {
      "command": "npx",
      "args": [
        "@modelcontextprotocol/inspector",
        "java",
        "-Dclojure.tools.logging.factory=clojure.tools.logging.impl/log4j2-factory",
        "-Dorg.eclipse.jetty.util.log.class=org.eclipse.jetty.util.log.Slf4jLog",
        "-Dlog4j2.contextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector",
        "-Dlog4j2.configurationFile=log4j2-mcp.xml",
        "-Dbabashka.json.provider=metosin/jsonista",
        "-Dlogging.level=INFO",
        "-Dmcp.vegalite.vl_convert_executable=/Users/vedang/.cargo/bin/vl-convert",
        "-cp",
        "/Users/vedang/mcp-vegalite-server/target/tech.unravel/mcp-vegalite-server-1.0.0.jar",
        "tech.unravel.mcp_vegalite_server"
      ]
    }
  }
}

工具

未检测到工具

工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is tech.unravel/mcp-vegalite-server?

MCP server that integrates with Vegalite and vl-convert to create diagrams. Provides two tools, save-data and visualize-data, enabling an LLM host to calculate data, save it, generate a Vega‑Lite spec, and render the final chart.

How to use tech.unravel/mcp-vegalite-server?

Build the JAR with make clean && make build, then run the server using the provided Java command, specifying the full path to the JAR and the vl-convert executable. Ensure vl-convert CLI is installed. Example configurations for Claude Desktop and MCP Inspector are included in the README.

Key features of tech.unravel/mcp-vegalite-server

Two simple tools: save-data and visualize-data
Renders charts using vl-convert
Designed for LLM‑guided chart creation
Requires Java runtime
Works with Claude Desktop and MCP Inspector

Use cases of tech.unravel/mcp-vegalite-server

Generate data, save it, and create a Vega‑Lite visualization
Let an LLM propose and render a chart from a dataset
Automate chart creation in a local MCP environment

FAQ from tech.unravel/mcp-vegalite-server

What are the prerequisites for running this server?

vl-convert CLI must be installed on the system.

How do I build the server?

Run make clean && make build to produce the JAR file.

How do I configure the server for Claude Desktop?

Add the full Java command (with paths to the JAR and vl-convert) to the "vegalite" entry in your Claude Desktop configuration file.

How do I use the server with MCP Inspector?

Run the npx @modelcontextprotocol/inspector command with the same Java arguments, replacing the JAR path with the full path on your system.

What tools does the server expose?

Two tools: save-data (to persist data needed for a chart) and visualize-data (to render a Vega‑Lite specification using the saved data).

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