Bullion API MCP Server

by bullionapi Your server? Claim it

answering

Bullion API is answering right now. Last checked 8 min ago.

Read-only gold and precious-metal prices, central-bank gold and macro data. OAuth sign-in.

Uptime history 6 days of history · worst day 99%

6 days agonow

100.0%

Uptime 24h

91 of 91 checks

—

Tools

hidden behind auth

1074 ms

Response time

average over 24h

OAuth sign-in

Access

streamable-http

Bullion API missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add bullion-api --transport http https://api.bullionapi.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://api.bullionapi.dev/mcp

~/.codex/config.toml

[mcp_servers.bullion-api]
url = "https://api.bullionapi.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "bullion-api": {
      "url": "https://api.bullionapi.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "bullion-api": {
      "type": "http",
      "url": "https://api.bullionapi.dev/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URL	Transport	State	Latency	Checked
https://api.bullionapi.dev/mcp	streamable-http	sign-in	1122 ms	8 min ago

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Bullion API — questions

Answers built from our own checks of this server.

Why is there no tool list for Bullion API?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is Bullion API working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 1074 ms. The bar chart above shows every period we have measured.

How do I connect Bullion API?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.

How do you sign in to Bullion API?

No API key is involved. Bullion API answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.

How fast is Bullion API?

It answers our handshake in 1074 ms on average, which is faster than 5% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.