claude-code - 💡(How to fix) Fix [Bug] API Error: Socket connection closed unexpectedly [1 participants]

[{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server sfcc invalid: Missing environment variables: SFCC_HOSTNAME, SFCC_SITE_ID, SFCC_CLIENT_ID, SFCC_CLIENT_SECRET, SFCC_OCAPI_VERSION\n at o0H (/$bunfs/root/src/entrypoints/cli.js:2769:32776)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-30T16:54:55.930Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server sfcc invalid: Missing environment variables: SFCC_HOSTNAME, SFCC_SITE_ID, SFCC_CLIENT_ID, SFCC_CLIENT_SECRET, SFCC_OCAPI_VERSION\n at o0H (/$bunfs/root/src/entrypoints/cli.js:2769:32776)\n at async k (/$bunfs/root/src/entrypoints/cli.js:6355:11810)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-30T16:54:56.140Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server sfcc invalid: Missing environment variables: SFCC_HOSTNAME, SFCC_SITE_ID, SFCC_CLIENT_ID, SFCC_CLIENT_SECRET, SFCC_OCAPI_VERSION\n at o0H (/$bunfs/root/src/entrypoints/cli.js:2769:32776)\n at async N (/$bunfs/root/src/entrypoints/cli.js:6355:12696)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-30T16:54:56.140Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server sfcc invalid: Missing environment variables: SFCC_HOSTNAME, SFCC_SITE_ID, SFCC_CLIENT_ID, SFCC_CLIENT_SECRET, SFCC_OCAPI_VERSION\n at o0H (/$bunfs/root/src/entrypoints/cli.js:2769:32776)\n at async k (/$bunfs/root/src/entrypoints/cli.js:6355:11810)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-30T16:55:02.989Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server sfcc invalid: Missing environment variables: SFCC_HOSTNAME, SFCC_SITE_ID, SFCC_CLIENT_ID, SFCC_CLIENT_SECRET, SFCC_OCAPI_VERSION\n at o0H (/$bunfs/root/src/entrypoints/cli.js:2769:32776)\n at async N (/$bunfs/root/src/entrypoints/cli.js:6355:12696)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-30T16:55:02.989Z"}]

TL;DR

Set the required environment variables SFCC_HOSTNAME, SFCC_SITE_ID, SFCC_CLIENT_ID, SFCC_CLIENT_SECRET, and SFCC_OCAPI_VERSION to resolve the MCP server error.

Guidance

• The error messages indicate that the MCP server is invalid due to missing environment variables, so setting these variables is the most likely solution.
• Verify that the environment variables are set correctly by checking the output of the env command or the environment variable settings in your operating system.
• To mitigate the issue, ensure that the environment variables are set before running the command that triggers the error.
• If using a .env file, make sure it is in the correct location and formatted correctly.

Example

No code snippet is provided as the issue is related to environment variable configuration.

Notes

The solution assumes that the environment variables are required for the MCP server to function correctly. If the variables are set but the issue persists, further investigation into the MCP server configuration may be necessary.

Recommendation

Apply workaround: Set the required environment variables to resolve the MCP server error. This is the most straightforward solution based on the error messages provided.