XOOMAR MCP MCP server

An official MCP server provided by XOOMAR that exposes 26 tools for accessing free US market data. It allows AI agents to query SEC filings, insider trades, short interest, 13F fund holdings, COT positioning, Fed liquidity, and economic calendars directly from primary sources via JSON and CSV endpoints.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by XOOMAR

MCP endpoint (Streamable HTTP)

https://xoomar.com/mcp

Vendor documentation

What you can do with it

Query insider trading activity and clusters for specific tickers
Retrieve quarterly company financials and XBRL income statements
Check short interest and fails-to-deliver data for US stocks
Access CFTC positioning history and Fed liquidity metrics

Tools advertised by the last live check:

short_interest
short_volume
fails_to_deliver
insider_trades
insider_clusters
threshold_list
planned_insider_sales
large_holders
fund_holders
fund_portfolio
company_financials
corporate_events
earnings_calendar
cot_positioning
funding_rates
fed_liquidity
policy_rates
macro_series
treasury_auctions
economic_calendar
private_placements
ipo_pipeline
bitcoin_treasuries
federal_contracts
crypto_market
api_reference

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 a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http xoomar-mcp https://xoomar.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 xoomar-mcp --url https://xoomar.com/mcp

Cursor

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

Cursor configuration

{
  "mcpServers": {
    "xoomar-mcp": {
      "url": "https://xoomar.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

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

VS Code

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

VS Code configuration

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

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