altfinance-mcp 0.3.2

MCP server for querying luxury asset auction data (watches, handbags, jewelry) via the ALT/FNDATA API

ALT/FNDATA MCP Server

Connect Claude to luxury asset auction data. Query 8.8M+ auction records across watches, jewelry, fine art, collector cars, handbags, wine, and more from 100+ global auction houses directly in Claude.

Quick Start

1. Install

pip install altfinance-mcp

2. Get an API Key

Sign up at altfndata.com to get your API key.

3. Configure Claude Desktop

Add to your Claude Desktop config file:

Windows: %APPDATA%\Claude\claude_desktop_config.json macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "altfinance": {
      "command": "altfinance-mcp",
      "env": {
        "ALTFINANCE_API_KEY": "your-api-key-here"
      }
    }
  }
}

Restart Claude Desktop after adding the configuration.

3b. Or Configure Claude Code

claude mcp add altfinance -- altfinance-mcp

Set the env var before launching:

export ALTFINANCE_API_KEY="your-api-key-here"

What You Can Ask Claude

Once configured, ask Claude questions like:

• "What tables are available in the ALT/FNDATA database?"
• "Show me the schema for the watches table"
• "Find the top 10 most expensive Rolex watches sold after 2020"
• "How many Hermes handbags were sold by Christie's?"
• "Show me Patek Philippe watches sold at Phillips sorted by price"
• "What jewelry sold for over $1M last year?"

Available Tools

All tools are read-only and annotated with readOnlyHint: true. No data is modified by any tool.

Tool	Description	Annotations
list_tables	Lists available tables (watches, handbags, jewelry)	readOnlyHint, openWorldHint
get_table_schema	Shows column names and types for a table	readOnlyHint, openWorldHint
query_table	Queries with filters, sorting, and pagination	readOnlyHint, openWorldHint

Query Capabilities

• Filter by any column using operators: eq, neq, gt, gte, lt, lte, like, in, not_in, is_null, is_not_null
• Sort by any column, ascending or descending
• Select specific fields to return
• Paginate with limit/offset (max 500 rows per request)

Data Coverage

Table	Description	Records
Watches	Luxury watch auction results	587K+
Handbags	Designer handbag auction results	282K+
Jewelry	Jewelry and gemstone auction results	1.3M+
Gems	Loose gemstone auction results	539K+
Automobile	Collector car auction results	570K+
Motorcycle	Collector motorcycle auction results	69K+
Aircraft	Aircraft auction and listing results	700+
Wine & Whisky	Wine and whisky auction results	710K+
Works of Art	Works of art auction results	2.1M+
Fine Art	Fine art auction results across all periods	2.6M+

8.8M+ total records from Christie's, Sotheby's, Phillips, Bonhams, RM Sotheby's, Barrett-Jackson, Artcurial, Dorotheum, Heritage Auctions, and 100+ other auction houses worldwide.

Remote Connector (Claude.ai)

ALT/FNDATA is also available as a built-in connector in Claude. When connecting through Claude.ai, you'll be prompted to enter your ALT/FNDATA API key via a secure OAuth flow — no local installation needed.

Self-Hosting the Remote Server

To run the MCP server in remote (HTTP) mode:

export ALTFINANCE_TRANSPORT=streamable-http
export ALTFINANCE_ISSUER_URL=https://mcp.altfndata.com
export ALTFINANCE_RESOURCE_URL=https://mcp.altfndata.com
python -m altfinance_mcp

Or with Docker:

docker build -t altfinance-mcp .
docker run -p 8000:8000 \
  -e ALTFINANCE_TRANSPORT=streamable-http \
  -e ALTFINANCE_ISSUER_URL=https://mcp.altfndata.com \
  -e ALTFINANCE_RESOURCE_URL=https://mcp.altfndata.com \
  altfinance-mcp

The remote server exposes:

• POST/GET/DELETE /mcp — MCP Streamable HTTP endpoint (authenticated)
• GET /.well-known/oauth-authorization-server — OAuth metadata
• POST /register — Dynamic Client Registration
• GET /authorize — OAuth authorization
• POST /token — Token exchange
• GET/POST /login — API key entry form

Environment Variables

Local (stdio) mode

Variable	Required	Default	Description
ALTFINANCE_API_KEY	Yes	—	Your ALT/FNDATA API key
ALTFINANCE_API_URL	No	https://api.altfndata.com	API base URL

Remote (HTTP) mode

Variable	Required	Default	Description
ALTFINANCE_TRANSPORT	Yes	stdio	Set to streamable-http
ALTFINANCE_API_URL	No	https://api.altfndata.com	API base URL
ALTFINANCE_HOST	No	0.0.0.0	HTTP listen address
ALTFINANCE_PORT	No	8000	HTTP listen port
ALTFINANCE_ISSUER_URL	No	http://localhost:8000	OAuth issuer URL (your public URL)
ALTFINANCE_RESOURCE_URL	No	Same as issuer	OAuth resource server URL

Privacy Policy

This MCP server connects to the ALT/FNDATA API (api.altfndata.com) to retrieve auction data. The following outlines our data practices:

• Data collection: The server sends your API key and query parameters (table names, filters, sort options) to the ALT/FNDATA API. No personal user data is collected beyond what is required for API authentication and query execution.
• Usage and storage: Query data is processed in real-time and returned to the MCP client. The server does not persist, cache, or store any query results or user data locally.
• Third-party sharing: Data is exchanged only between the MCP client and the ALT/FNDATA API (api.altfndata.com). No data is shared with any other third parties.
• Data retention: The server is stateless. No user data or query history is retained after a session ends.
• Contact: For privacy inquiries, contact [e-mail].

Full privacy policy: https://altfndata.com/privacy-policy/

Support

• Documentation: https://altfndata.com/docs
• Email: [e-mail]
• GitHub Issues: https://github.com/altfinance/altfinance-mcp/issues

Requirements

• Python 3.10+
• An ALT/FNDATA API key

License

MIT