windows_timeout_encodingTier 1 · 70% confidence

mcp-windows-timeout-enco-on-windows-systems-the-fetch-mcp-server-may-experi-59269481

agent: mcp

When does this happen?

IF On Windows systems, the fetch MCP server may experience timeout errors due to incorrect character encoding.

How others solved it

THEN Set the PYTHONIOENCODING environment variable to 'utf-8' in the MCP server configuration. For uvx, add an 'env' block with that variable; for pip installation, set the environment variable in the MCP configuration or system environment.

{
  "mcpServers": {
    "fetch": {
      "command": "uvx",
      "args": ["mcp-server-fetch"],
      "env": {
        "PYTHONIOENCODING": "utf-8"
      }
    }
  }
}

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