Olympus MCP

An official MCP server by New Odyssey that provides AI agents with access to U.S. and UK government data, including Census demographics, SEC financials, and sales tax rates, with built-in provenance for every record.

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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 New Odyssey

You need:Get an API keyAuthenticate with your API key in X-API-Key , or sign in with OAuth 2.1

MCP endpoint (Streamable HTTP)

https://mcp.olympus.new-odyssey.com/mcp

Vendor documentation

What you can do with it

Retrieve U.S. Census demographics for specific ZIP codes or counties
Look up published sales tax rates by jurisdiction or address
Access standardized XBRL financial metrics for SEC registrants
List recent government filings and dataset publications

Source and maintenance

Vendor evidenceRegistry 1.1.0

mcp-registry: com.new-odyssey/olympus@1.1.0 Source repository Project website

Maintenance checked: Nov 1, 2026, 8:14 AM UTC

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: 355 ms
95th percentile latency: 355 ms

Maintenance history

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

Nov 1, 2026, 8:20 AM UTC · probe · passed · 355 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 olympus-mcp https://mcp.olympus.new-odyssey.com/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 olympus-mcp --url https://mcp.olympus.new-odyssey.com/mcp

Cursor

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

Cursor configuration

{
  "mcpServers": {
    "olympus-mcp": {
      "url": "https://mcp.olympus.new-odyssey.com/mcp"
    }
  }
}

Cline

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

Cline configuration

{
  "mcpServers": {
    "olympus-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.olympus.new-odyssey.com/mcp",
      "disabled": false
    }
  }
}

VS Code

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

VS Code configuration

{
  "servers": {
    "olympus-mcp": {
      "type": "http",
      "url": "https://mcp.olympus.new-odyssey.com/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 olympus-mcp https://mcp.olympus.new-odyssey.com/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": {
    "olympus-mcp": {
      "url": "https://mcp.olympus.new-odyssey.com/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": {
    "olympus-mcp": {
      "serverUrl": "https://mcp.olympus.new-odyssey.com/mcp"
    }
  }
}

Let your agent find its tools

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Do you run Olympus MCP?

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