# Propalt AI

> Propalt AI is a UK property data platform offering a REST API and an MCP server for 29 million UK properties across 8 authoritative registers, refreshed every 24 hours. One contract replaces Land Registry, EPC, ownership, valuation, comparables, and market-analytics vendors.

Propalt's data layer is built for developers, AI engineers, and property professionals (estate agents, surveyors, conveyancers, mortgage brokers, insurers, lenders, investors, developers, and proptech platforms). Every endpoint is documented with an OpenAPI 3.1 spec and surfaced as MCP tools so ChatGPT, Claude, and custom agents can query UK property data in natural language.

## Core product

- [API reference](https://propalt.ai/product/overview): UK Property Data API — 36 named endpoints across 11 categories, OpenAPI 3.1, MCP server, 500 free credits/month.
- [Data sources](https://propalt.ai/product/dataSources): The 8 official UK registers (Land Registry, Royal Mail PAF, ONS, MHCLG EPC and 4 more) plus 4 proprietary sources, refreshed every 24 hours.
- [Data & AI](https://propalt.ai/product/forAi): Structured UK property data for AVMs, LLM agents, and market intelligence — MCP server, OpenAPI 3.1, Markdown docs for AI context windows.
- [Connect to your AI](https://propalt.ai/product/forDeveloper): MCP server setup for Claude Code, Cursor, Windsurf, Continue, Cline — connect any MCP-compatible AI client to UK property data.
- [Pricing](https://propalt.ai/pricing): Seven usage-based tiers from £0 (500 free credits/month, no card) through Developer, Startup, Agency, Platform, Growth (£2,999/mo), to Enterprise.
- [FAQ](https://propalt.ai/faq): 15 Q&As covering free tier, API keys, rate limits, data freshness, identifiers, UK coverage, bulk export, MCP server, and billing.

## Use cases

- [Estate agents](https://propalt.ai/use-cases/estate-agents): Identify landlords likely to sell, generate valuation leads, and run targeted outreach using audience and listings endpoints.
- [Mortgage brokers](https://propalt.ai/use-cases/mortgage-brokers): Validate the property, model affordability, and surface lease and EPC risk before the lender's surveyor does.
- [Secured lenders](https://propalt.ai/use-cases/secured-lenders): Batch revaluation, HPI-driven portfolio drift, and stress testing for every property securing a live loan.
- [Property investors](https://propalt.ai/use-cases/property-investors): Underwrite any UK deal in one API call — yield, cash flow, refurb upside, exit liquidity, and off-market BTL stock.
- [Insurance & risk](https://propalt.ai/use-cases/insurance): Property fabric, environmental context (coal, mining, area crime), occupancy and let-status signals for underwriting and pricing.
- [Surveyors](https://propalt.ai/use-cases/surveyors): RICS-grade comparables with evidence trail, EPC, tenure, and environmental indicators for defensible valuation reports.
- [Conveyancers](https://propalt.ai/use-cases/conveyancers): Title, tenure, lease, environmental, and planning screening before contracts — surface chain blockers in seconds.
- [Property developers](https://propalt.ai/use-cases/property-developers): Ownership, planning context, GDV comparables, and Section 106 benchmarks for any UK title or set of titles.
- [PropTech platforms](https://propalt.ai/use-cases/proptech): Replace six data contracts with one — valuation, EPC, ownership, comparables, market analysis, and rentals behind a single API.
- [Home improvements](https://propalt.ai/use-cases/home-improvements): EPC, fabric, tenure, and clean-tech suitability for retrofit installers and improvement marketplaces — area-level signals, no personal data.
- [Utility companies](https://propalt.ai/use-cases/utility-companies): Occupancy-change signals, fabric, broadband, and tariff-fit data for utility acquisition, retention, and network planning.
- [Removal companies](https://propalt.ai/use-cases/removal-companies): Catchment-level movers pipelines, property-size signals, and top-agent intelligence for marketing and quoting.

## Resources

- [Homepage](https://propalt.ai): Marketing entry point — the property data layer behind better decisions across proptech, AI, and real estate.
- [Product overview](https://propalt.ai/product/overview): Developer-facing overview of the REST API and MCP server with 36 endpoints and 24-hour refresh.
- [Blog](https://propalt.ai/blogs): How-tos, comparisons, and deep dives on UK property data, AI, and the Propalt API.
- [Changelog](https://propalt.ai/changelog): New features, data updates, and API changes — see what's new in the UK property data API.
- [Reviews](https://propalt.ai/reviews): Trustpilot reviews — 4.7/5 from estate agents, landlords, and property platforms across the UK.

## Optional

- [About](https://propalt.ai/about): Propalt AI is a UK property data company building the data layer for proptech, AI, and real estate.

## Blog posts

- [The AI Isn't the Feature. It's the Lock.](https://propalt.ai/blogs/ai-lock-in): Estate agency CRMs are racing to bolt AI assistants into their platforms. Agents should be asking a harder question than “what does it do?”, because the smartest thing your CRM ever built may be the hardest thing to ever leave.
- [Own the Machine: Why Creators and Business Owners Should Stop Renting Their Own Data](https://propalt.ai/blogs/own-the-machine-data-ownership): Many creators and business owners build digital systems on platforms they don’t own. This article explains why owning your tools, data, and workflows is now possible with AI, open standards, and new data laws—and why control, not access, is the true advantage.
- [UK Estate Agent Data Portability: Your Rights Under UK GDPR, the Data Use and Access Act 2025, and What the EU Data Act Signals](https://propalt.ai/blogs/uk-estate-agents-data-portability): Stop renting access to your own data. UK GDPR, DUAA and CMA reforms are reshaping data ownership for estate agents.
- [Underwriting in an Article 4 World: What AI Changed for HMO Investors in 2026, and What It Didn't](https://propalt.ai/blogs/underwriting-in-an-article-4-what-ai-changed-for-hmo-investors): AI has made HMO underwriting faster than ever, turning hours of research into seconds. But in a market shaped by Article 4 restrictions, licensing rules, and tenancy reform, data is no longer the advantage—judgement is. This article explores what AI changed for HMO investors in 2026, and what still can't be automated.
- [5 Questions You Can Ask Claude or ChatGPT Right Now Using Propalt’s Property Data](https://propalt.ai/blogs/questions-chatgpt-claude-propalt-property-data): Five professionals. Five questions. One live data connection. See what estate agents, investors, buyers, brokers and letting agents can ask ChatGPT using Propalt data.
- [Why Property Data Accuracy Is the Hidden Key to Reducing Deal Fall-Throughs](https://propalt.ai/blogs/property-data-accuracy-deal-fall-throughs): Inaccurate data kills deals. See how daily-refreshed comparables, EPC records and propensity-to-sell intelligence reduce fall-throughs and improve instruction rates.
- [How to Build an Instant Market Report in Under 60 Seconds with Propalt AI and ChatGPT](https://propalt.ai/blogs/instant-market-report-propalt-ai-chatgpt): Five prompts. Under 60 seconds. A complete, postcode-specific market report from live UK property data — built with Propalt AI and ChatGPT.
- [From Black Box to Open Ecosystem: Why PropTech Vendors Must Stop Locking Your Data](https://propalt.ai/blogs/proptech-open-ecosystem-data-lock-in): Your CRM is engineered around lock-in. This article makes the case for open, MCP-compatible platforms — and the questions to ask before signing your next contract.
- [The market is stuck. The keys are in the lofts of people who don't know they want to move.](https://propalt.ai/blogs/downsizer-opportunity): Why stalled chains start with under-occupied family homes — and why the agent who starts the downsizing conversation wins the instructions nobody else is asking for.
- [Top 3 Ways Estate Agents Are Using the Propalt MCP to Save Hours Every Week](https://propalt.ai/blogs/propalt-mcp-estate-agents-save-time): Valuation packs in 2 minutes. Landlord prospecting in 5. Campaign lists in seconds. Three workflows where the Propalt MCP saves agents hours every week.
- [Own Your Data: Why the Next Era of PropTech Belongs to the Open Platform](https://propalt.ai/blogs/own-your-data-open-platform-proptech): PropTech's third era is about ownership. Discover why open, API-first platforms compound value in your business — not your vendor's.
- [How AI-Powered Property Data Is Changing the Way Brokers and Lenders Operate](https://propalt.ai/blogs/ai-property-data-brokers-lenders): AI is only as good as the data behind it. See how a daily-refreshed UK property data API is changing risk screening, valuations and lending decisions.
- [The cheapest way to lose a rent increase? Say nothing.](https://propalt.ai/blogs/rent-increase-transparency): For years, rent increases were a silent demand. The Renters' Rights Act now rewires incentives in favor of tenants, making transparency and evidence essential for landlords.
- [AI Can Find the Building. It Can't Register the Home](https://propalt.ai/blogs/ai-can-find-the-building-childrens-homes): AI can find the building, analyse the market, trace ownership and model the numbers. But registration, safeguarding, operator quality and children's welfare remain human responsibilities. In children's residential care, that boundary is not a limitation of AI—it is the point.