Kintone mcp, Custom vars not setting correctly in the Kintone mcp

[inv-Eldho]

What happened?

We are setting the DOMAIN, USERNAME, and PASSWORD in the LibreChat UI using placeholders. After saving, when we run a tool, we get an EAI_AGAIN error because the placeholder {{my_kintone_domain}} is not being resolved.

We are using placeholders in the LibreChat YAML file with kintone-mcp-server (Node.js), as shown below. The values are entered through the UI, and after reinitializing the server, a success message appears in the toaster. However, when running the tools, this error still occurs.

Could you please check?"

kintone-dev:
    command: "node"
    args:
      - "/app/mcp_supergateway/kintone-mcp-server/server.js"
    env:
      KINTONE_DOMAIN: "{{MY_KINTONE_DOMAIN}}"
      KINTONE_USERNAME: "{{MY_KINTONE_USERNAME}}"
      KINTONE_PASSWORD: "{{MY_KINTONE_PASSWORD}}"
    customUserVars:
      MY_KINTONE_DOMAIN:
        title: "My kintone domain"
        description: "[xxxx.cybozu.com](http://xxxx.cybozu.com/) ドメイン名を入力してください"
      MY_KINTONE_USERNAME:
        title: "My kintone username"
        description: "ユーザー名を入力してください"
      MY_KINTONE_PASSWORD:
        title: "My kintone password"
        description: "パスワードを入力してください"
    iconPath: /assets/kintone-dev.png 

Version Information

eebfc29f1be7bb113150311eebbaea5084fc4fe6

Steps to Reproduce

Step -1
Add the Kintone MCP in node add the below settings librechat.yaml file

kintone-dev:
    command: "node"
    args:
      - "/app/mcp_supergateway/kintone-mcp-server/server.js"
    env:
      KINTONE_DOMAIN: "{{MY_KINTONE_DOMAIN}}"
      KINTONE_USERNAME: "{{MY_KINTONE_USERNAME}}"
      KINTONE_PASSWORD: "{{MY_KINTONE_PASSWORD}}"
    customUserVars:
      MY_KINTONE_DOMAIN:
        title: "My kintone domain"
        description: "[xxxx.cybozu.com](http://xxxx.cybozu.com/) ドメイン名を入力してください"
      MY_KINTONE_USERNAME:
        title: "My kintone username"
        description: "ユーザー名を入力してください"
      MY_KINTONE_PASSWORD:
        title: "My kintone password"
        description: "パスワードを入力してください"
    iconPath: /assets/kintone-dev.png 

2. Run the API,
3. select one model then choose Kintone mcp from mcp server (kintone-mcp-server JS)
4. Add the settings DOMAIN,USERNAME, PASSWORD, from the UI
5. Save and Initialize Kintone mcp,
6. Try running the an tool

What browsers are you seeing the problem on?

No response

Relevant log output

Failed to create app Team Management: getaddrinfo EAI_AGAIN {{my_kintone_domain}}

Screenshots

Code of Conduct

• I agree to follow this project's Code of Conduct

[danny-avila]

MCP servers with stdio transport (running from host processes, as this kintone one does), are "shared" or initialized at the app-level by default, since they are not optimized or meant for multi-user contexts.

  kintone:
    startup: false # <----- add this
   # .. rest of your config

Note, using MCP servers with stdio transports is not recommended in a multi-user context. Look into converting the MCP server to use streamable http transport, there are also some projects that convert it for you.

more info: https://modelcontextprotocol.io/specification/2025-06-18/basic/transports