Underwriting should not be locked inside a web form. Starting today, REIzer's engine is available two more ways, and neither needs an account or an API key.
The REST API
Four endpoints cover the core workflow:
POST /api/v1/analyzeruns a full analysis for any strategy: score, metrics and stress tests in one JSON response.GET /api/v1/strategieslists every strategy and its input schema.POST /api/v1/best-useranks all qualifying strategies for one property.POST /api/v1/maoreverse-solves the maximum allowable offer for your return targets.
Rates and percentages are fractions, money is in dollars, and every response includes a shareable report link. The API reference has request and response examples pulled from the live engine.
The MCP server
If you work in Claude, Cursor or another agent that speaks the Model Context Protocol, the same tools are one command away: analyze_deal, best_use, solve_max_offer and list_strategies, plus pull_comps and str_market_data when the connection carries an API key from a paid plan. The setup guide covers each client.
Metric parity is a rule we hold ourselves to: anything the analyzers report, the API and MCP report, and nothing more. If a number is not in the app, it is not in the API.