RentCast MCP Server

MCP server that wraps the RentCast API to help search for houses for sale, get property valuations, rent estimates, and market statistics.

Setup

# Install dependencies
uv sync

# Set your API key
export RENTCAST_API_KEY="your-api-key-here"

Get an API key at app.rentcast.io.

Running the MCP Server

# stdio transport (default, for Claude Desktop / Claude Code)
uv run rentcast-mcp

# Or directly
uv run python -m rentcast_mcp

Claude Desktop Configuration

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "rentcast": {
      "command": "uv",
      "args": ["--directory", "/path/to/rentcast-mcp", "run", "rentcast-mcp"],
      "env": {
        "RENTCAST_API_KEY": "your-api-key-here"
      }
    }
  }
}

Tools

Tool	Description
search_sale_listings	Search homes for sale by location, price, beds, baths, sqft, year built
get_listing_details	Full details for a specific listing by ID
get_property_record	Property records with owner info, tax history, sale history
get_property_value	Automated value estimate (AVM) with comparable sales
get_rent_estimate	Rental value estimate for investment analysis
get_market_stats	Market statistics and price trends for a zip code
compare_listings	Side-by-side comparison of multiple listings
search_recent_sales	Search recently sold properties (comps)

CLI Testing

# Search listings
uv run python cli.py search_sale_listings '{"zipCode": "95123", "minBedrooms": 4, "maxPrice": 2100000}'

# Get property value
uv run python cli.py get_property_value '{"address": "5500 Grand Lake Dr, San Antonio, TX, 78244"}'

# Market stats
uv run python cli.py get_market_stats '{"zipCode": "78701"}'

# Rent estimate
uv run python cli.py get_rent_estimate '{"address": "123 Main St, Austin, TX 78701"}'

# Compare listings
uv run python cli.py compare_listings '{"listing_ids": ["id1", "id2"]}'

Rate Limits

Free tier: 50 API calls/month. The server tracks call count per session and warns when approaching the limit.