Browser-local Cursor MCP config help

Cursor MCP Config Validator & Setup Generator

Validate Cursor mcp.json, generate placeholder-based configs for Figma, GitHub, Slack, Supabase, and troubleshoot common MCP setup issues — without connecting accounts or pasting real credentials.

Validate MCP JSON Generate a Config Template Troubleshoot Cursor MCP

Use placeholders only. Review commands, packages, scopes, and permissions before using any config locally.

ValidateGenerateTroubleshoot

{
  "mcpServers": {
    "example-server": {
      "command": "YOUR_COMMAND_OR_PATH",
      "args": ["YOUR_ARGUMENT"],
      "env": {
        "ACCESS_TOKEN": "YOUR_PLACEHOLDER_VALUE"
      }
    }
  }
}

Notice

Handle MCP configs carefully

Validation is intended to run locally in your browser. Do not paste real credentials, cookies, production values, or service-role values. Generated configs use placeholders and should be reviewed manually before use.

Start with your Cursor MCP task

I already have JSON

Check syntax, common Cursor MCP fields, and likely config-shape issues.

I need a starter config

Generate placeholder-based config templates for common MCP servers.

Cursor does not show my tools

Work through config location, command, env, startup, and reload checks.

A practical Cursor MCP config workbench

Tool-first pages help users validate, generate, and troubleshoot instead of reading another generic tutorial.
Supported starter templates include Figma, GitHub, Slack, and Supabase with placeholder-only values.
The site does not connect accounts, execute commands, or modify local files.

Next steps for Cursor MCP setup

Validate MCP JSON

Check JSON syntax and common Cursor MCP structure issues locally.

Generate a config template

Create placeholder-based configs for common MCP server types.

Set up Cursor MCP

Follow a practical setup flow for config, reload, and verification.

Troubleshoot MCP issues

Work through invalid JSON, path, command, env, startup, and reload checks.

Independent

This site is an independent third-party setup helper and is not affiliated with, endorsed by, or sponsored by Cursor, Figma, GitHub, Slack, Supabase, or their owners. Brand names are used only to describe compatibility and setup context.

FAQ

Is this an official Cursor tool?

No. It is an independent third-party setup helper.

Does the validator upload my JSON?

The V0 validator is designed to run in your browser and should not upload pasted config content.

Can I paste real credentials?

No. Use placeholder values only and replace them locally in your own config file.

Can this install MCP servers automatically?

No. Commands are copy-only references and must be reviewed manually.