Moon Banking MCP for MCP Inspector

Test the Moon Banking MCP server with Anthropic's MCP Inspector before wiring it into a client.

MCP Inspector is the sanity check before plugging Moon Banking into Claude, Cursor, Grok, ChatGPT, or anywhere else. Point it at the hosted endpoint and you can see the full Moon Banking tool surface (11 tools across banks, countries, votes, stories, semantic search, and global overview), invoke each one with real arguments, and verify the OAuth flow works end-to-end — all before you commit a single line to a real client's config.

It's also the easiest way to confirm a new MCP client implementation you're building yourself supports Streamable HTTP plus OAuth with Dynamic Client Registration correctly: if Moon Banking works in the Inspector but not in your client, the difference is on your end, not the server's.

MCP Inspector is the official debugger for MCP servers. Use it when you're integrating Moon Banking into a new client and want to verify that the OAuth flow and tool surface behave as expected.

Run the inspector

npx @modelcontextprotocol/inspector

A browser window opens at http://localhost:6274.

Connect to the hosted server

Transport: Streamable HTTP
Server URL: https://mcp.moonbanking.com/mcp
Click Connect. The inspector will detect that the server requires OAuth, open a browser tab to authenticate with Moon Banking, and bring you back once you approve.
In the Tools tab, you should see every Moon Banking tool. Click any of them, fill in arguments, and invoke them live.

Connect to the self-hosted stdio server

If you're testing the API-key package, run the inspector against the local stdio process:

MOON_BANKING_API_KEY="Bearer mb_sk_..." \
  npx @modelcontextprotocol/inspector npx -y @moonbanking/mcp-server

What to look for

Tools tab populated — confirms the server is serving the tool list.
Successful tool call — confirms upstream API auth is working.
Resources / Prompts tabs empty — expected; Moon Banking exposes tools only.

If the inspector shows 401 Unauthorized or 403 Forbidden, refer to the troubleshooting sections of the client-specific pages; the root cause is usually a Moon Banking account that isn't on the Pro plan, or a stale OAuth token in the inspector's cache (clear it with the Disconnect button).

Available tools

The Moon Banking MCP server exposes the following tools (identical across every client):

bank_getByHostname
bank_get
bank_getById
bank_semanticSearch
bankVote_get
country_get
country_getByCountryCode
story_get
story_getById
world_getOverview
search_get

Full descriptions live on the main MCP page.