Online MCP Inspector
Check any remote MCP server in your browser: paste its URL and see how each tool behaves.
Paste the URL of a remote MCP server to see its tools, prompts and resources.
How it works
- Paste the URL of a remote MCP server (Streamable HTTP) and press Inspect.
- If the server asks you to sign in, press Authenticate.
- Read what each tool, prompt and resource does, then run a tool with the form and see the result.
Frequently asked questions
What is an MCP inspector?
A tool that connects to a Model Context Protocol server and lists what it offers AI agents: tools, prompts and resources.
How is it different from npx @modelcontextprotocol/inspector?
The official inspector runs on your machine and also supports stdio servers. This one runs in the browser and works with remote servers only.
Do I need to be a developer?
No. Each tool is described in plain language, with labels for actions that only read data or can change or delete it.
Can I test a server that uses OAuth?
Yes. Press Authenticate and sign in the way an AI agent's user would.
Can I inspect a server on localhost or a private network?
No. The server needs a public HTTPS URL.
Is it free?
Yes, and you don't need an account.
How to delete all stored data?
Everything the inspector keeps stays in your browser: the servers you inspected, your sign-ins and any headers you added. Click the address field to see your recent servers, then press × next to each one. That deletes everything kept for it. MCP Tower never stores your sign-ins, header values or tool arguments.
Next: get it listed and measured with Growing Your MCP Server: A Crash Course, a free nine-lesson course that starts with this inspector.