Hercules MCP

An official MCP server provided by Hercules that grants AI assistants access to comprehensive property data, including NYC tax lots, owner information, sales history, loans, zoning, permits, violations, and pre-foreclosure records.

Endpoint and access

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

No sign-inEndpoint checked 2026-10-26Operated by Hercules

MCP endpoint (Streamable HTTP)

https://app.hercules.properties/mcp

Vendor documentation

What you can do with it

Retrieve NYC property owner and LLC officer details
Access sales history and loan amounts for specific tax lots
Check zoning classifications and building code violations
Identify open pre-foreclosure cases and distressed properties

Tools advertised by the last live check:

get_hercules_overview
buy_credits
get_credit_balance
search_nyc_preforeclosures
run_nyc_preforeclosure_search
get_nyc_preforeclosure_detail
quote_national_property_search
run_national_property_search
get_property_detail
quote_active_investor_search
run_active_investor_search
find_nyc_property
get_nyc_property
unlock_nyc_property_report
unlock_nyc_owner_contacts
search_nyc_owners
get_nyc_owner_portfolio
search_nyc_underused_properties
run_nyc_underused_search
search_nyc_signals
run_nyc_signals_search
get_nyc_unit
search_nyc_properties
quote_llc_owner_lookup
run_llc_owner_lookup
quote_investor_firm_search
run_investor_firm_search
top_up_credits

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 hercules-mcp https://app.hercules.properties/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 hercules-mcp --url https://app.hercules.properties/mcp

Cursor

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

Cursor configuration

{
  "mcpServers": {
    "hercules-mcp": {
      "url": "https://app.hercules.properties/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": {
    "hercules-mcp": {
      "type": "streamableHttp",
      "url": "https://app.hercules.properties/mcp",
      "disabled": false
    }
  }
}

VS Code

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

VS Code configuration

{
  "servers": {
    "hercules-mcp": {
      "type": "http",
      "url": "https://app.hercules.properties/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 hercules-mcp https://app.hercules.properties/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": {
    "hercules-mcp": {
      "url": "https://app.hercules.properties/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": {
    "hercules-mcp": {
      "serverUrl": "https://app.hercules.properties/mcp"
    }
  }
}

Ground your agent in cited data

Hercules MCP gives your agent tools. Koskamo gives it reviewed, cited facts to check its answers against. Add it as a second MCP server; public reads need no API key.

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