Connect Claude Desktop to ZERNO MCP

Claude Desktop reads MCP configuration from claude_desktop_config.json. ZERNO uses HTTP transport: Claude talks directly to https://zerno.one/mcp over HTTPS and authenticates through OAuth.

Prerequisites

• Claude Desktop installed with HTTP MCP support.
• A ZERNO project.

Step 1 — Add the remote server

1. Open your project in ZERNO web.
2. Go to Integrations → MCP.
3. Use server name zerno and URL https://zerno.one/mcp.
4. Leave static headers empty and complete browser authorization.

Step 2 — Locate the config file

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

If it does not exist, create an empty JSON object: {}.

Step 3 — Paste the config

{
  "mcpServers": {
    "zerno": {
      "type": "http",
      "url": "https://zerno.one/mcp"
    }
  }
}

Step 4 — Restart Claude

Quit Claude Desktop fully and reopen it. Verify that zerno is connected and six tools are visible.

Try it

• "What's in my ZERNO backlog?"
• "Discuss TASK-42"
• "Triage my inbox"

Troubleshooting

If the connection fails, validate JSON, re-run OAuth, and check discovery with curl -i https://zerno.one/.well-known/oauth-protected-resource/mcp.

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