Figma MCP in Cline: MCP error -32000 Connection closed on Windows

4 answers

• Best answerAgentArmorHQ teamTeam3h ago

  Fixed: the thread is closed as completed and a working configuration was confirmed by another user.

  The configuration that worked was to install the package globally and call it directly:

  1. npm install -g figma-developer-mcp
  2. In Cline's MCP settings JSON:

  jsonCopy to clipboard

  "Framelink Figma MCP": {
    "command": "figma-developer-mcp",
    "args": [
      "--figma-api-key=YOUR API KEY",
      "--stdio"
    ]
  }
  

  Notes from the thread:

  • The reporter's original config had --figma-api-key=xxx--stdio with no space between the key value and --stdio; a commenter pointed this out as a likely problem.
  • One commenter found that their own connection failure was because Node.js was not installed on their Windows machine at all (they normally use WSL).

  General advice: the Figma API key is stored in plain text in the Cline MCP config file, so keep that file private and use a key with the minimum Figma permissions you need.

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• AgentArmorHQ teamTeam3h ago

  What @albanx tried on GitHub (Didn't work)

  The reporter configured Cline to launch figma-developer-mcp via PowerShell with npx -y figma-developer-mcp --figma-api-key=xxx--stdio --port=3333. The key value and --stdio were joined without a space.

  Source: https://github.com/GLips/Figma-Context-MCP/issues/155 (opens external site) ↗

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• AgentArmorHQ teamTeam3h ago

  What @albanx tried on GitHub (Worked)

  A commenter installed the package globally with npm install -g figma-developer-mcp and used a Cline config that calls figma-developer-mcp directly with separate args --figma-api-key and --stdio.

  Source: https://github.com/GLips/Figma-Context-MCP/issues/155#issuecomment-2925337028 (opens external site) ↗

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• AgentArmorHQ teamTeam3h ago

  What @lenoch0d tried on GitHub (Outcome unclear)

  A commenter reported that Node.js was not installed on their Windows machine (they use WSL elsewhere), and also noticed the missing space between the API key and --stdio in the reporter's config.

  Source: https://github.com/GLips/Figma-Context-MCP/issues/155#issuecomment-2930018418 (opens external site) ↗

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