# MarketCode

> The operating system for UK real estate: one property data core, exposed as an MCP server for AI assistants, a REST API for code, and products for teams.

MarketCode joins the UK's authoritative property records at the address (HM Land Registry, Ordnance Survey, MHCLG planning data, Environment Agency, Companies House, the EPC register, the VOA, live portal listings and auction results) and adds its own analytics: a valuation model with ranges and confidence, five published indices, a listing-market series and auction outcomes. Every field carries its source and a confidence score.

## Three ways in

- MCP server: https://mcp.marketcode.ai/mcp (Streamable HTTP, OAuth 2.1 sign-in, scope `property:read`, no API key). Works in Claude and Claude Desktop (custom connector), ChatGPT (developer-mode plugin), Codex (`codex mcp add marketcode --url https://mcp.marketcode.ai/mcp`), Cursor, Claude Code (`claude mcp add --transport http marketcode https://mcp.marketcode.ai/mcp`, or the plugin below), VS Code (Copilot agent mode, `.vscode/mcp.json`), Windsurf (`mcp_config.json`) and Gemini CLI (`~/.gemini/settings.json` with OAuth, then `/mcp auth marketcode`). Per-client steps: https://marketcode.ai/data/mcp#connect Connection steps: https://marketcode.ai/data/mcp#connect
- REST API: https://api.marketcode.ai/v1 with an API key sent as `Authorization: Bearer`. Keys are created in the API & MCP Hub: https://marketcode.ai/api-hub
- Skills: markdown files that teach an agent how to produce a deliverable with the tools (which calls, in what order, at what cost, how to lay out the result with its sources). Public repo: https://github.com/robosapien-ai/marketcode-plugin. Claude Code: `/plugin marketplace add robosapien-ai/marketcode-plugin`. Index: https://marketcode.ai/skills

## Live discovery

- OpenAPI 3.1: https://api.marketcode.ai/v1/openapi.json
- Price of every endpoint (the authority; most are free): https://api.marketcode.ai/v1/meta/pricing
- The catalogues on the site are rendered from these documents: https://marketcode.ai/data/api and https://marketcode.ai/data/mcp

## Products (status as shown on the site: Live, Early access, Coming soon)

- Valuation (early access): https://marketcode.ai/product/valuation — value range, confidence, comparables, index, EPC, flood and planning for any UK address
- Insights (coming soon): https://marketcode.ai/product/insights — indices, volumes, listing stock and rankings for any UK market
- Sourcing (coming soon): https://marketcode.ai/product/sourcing — land and unit search over ownership and planning, owner resolution, outreach
- API & MCP Hub (live): https://marketcode.ai/product/hub — keys, connected apps, usage, credits

## Credits

- One balance across REST, MCP and the products. New accounts start with 100 free credits. Most tools are free, including valuations; a call costs credits only where a data licence obliges it (addresses, ownership) or where the caller shapes the query (`query_semantic`, `query_sql`). Failed calls are not charged, except the two query tools when the warehouse did the work.
- Packs: 2,500 credits for £125 and 10,000 for £400, no expiry. Pricing: https://marketcode.ai/pricing
- The MCP server is not yet listed in the ChatGPT Plugins Directory or the Claude Connectors Directory.

## Key pages

- Home: https://marketcode.ai/
- Pricing: https://marketcode.ai/pricing
- Skills: https://marketcode.ai/skills
- The data core: https://marketcode.ai/data
- For lenders: https://marketcode.ai/for-lenders
- For investors: https://marketcode.ai/for-investors
- For property developers: https://marketcode.ai/for-developers
- For estate agents: https://marketcode.ai/for-agents
- Blog (articles): https://marketcode.ai/blog
- Learn (how-to guides): https://marketcode.ai/learn
- Markets (house prices by local authority and postcode district): https://marketcode.ai/markets
- Changelog: https://marketcode.ai/changelog
- About: https://marketcode.ai/about
- Trust Center: https://marketcode.ai/legal/trust-center
- Book a demo: https://marketcode.ai/book-demo

## About the company

MarketCode is built by Robosapien Limited (Companies House: 16079321), a UK company founded in 2024.

- Website: https://marketcode.ai
- GitHub: https://github.com/robosapien-ai
- LinkedIn: https://www.linkedin.com/company/marketcode-ai
- X (Twitter): https://twitter.com/marketcode-ai

## Full reference

- [Everything in one document](https://marketcode.ai/llms-full.txt): every tool with its full description, arguments and price; sources with licences; glossary; skills; methodology.