Bullion API MCP

Official MCP server by Bullion API enabling AI agents to access precious metals prices, central-bank gold data, macro indicators, and user portfolios via OAuth 2.1 authentication.

Visit Bullion API

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

Vendor evidenceStreamable HTTPOAuth sign-inEndpoint checked 2026-11-01Operated by Bullion API

You need:OAuth 2.1 sign-in with consentsame plans and limits as the API

MCP endpoint (Streamable HTTP)

https://api.bullionapi.dev/mcp

Vendor documentation

What you can do with it

Retrieve latest gold and precious metal prices
Access central-bank gold holdings data
Query macroeconomic indicators like inflation
View user portfolio valuations

Source and maintenance

Vendor evidenceRegistry 0.2.2

mcp-registry: dev.bullionapi/bullion-api@0.2.2 Project website

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 800 ms
95th percentile latency: 800 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 1, 2026, 6:54 AM UTC · probe · passed · 800 ms · metadata changed · refuses unauthenticated initialize (HTTP 401)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

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

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add bullion-api-mcp --url https://api.bullionapi.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable bullion-api-mcp in your MCP settings.

Cursor configuration

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

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "bullion-api-mcp": {
      "type": "streamableHttp",
      "url": "https://api.bullionapi.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start bullion-api-mcp and inspect its tools.

VS Code configuration

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

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

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

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

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

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

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

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