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Codex CLI • homedata-mcp v0.2.0

UK property data MCP for Codex CLI

OpenAI's terminal-native coding agent. Install the Homedata MCP and Codex CLI gains typed tools for 29 million UK properties — EPC, flood risk, planning, schools, transport — answered straight from your chat or agent.

Get a key Install in Codex CLI ↓

Install the Homedata MCP in Codex CLI

Three steps: install the Python package, drop in the config block, restart Codex CLI.

Add to

~/.codex/config.toml

Codex CLI uses a TOML config. The mcp_servers section accepts the same command/args/env triple as JSON-based clients.

[mcp_servers.homedata]
command = "homedata-mcp"

[mcp_servers.homedata.env]
HOMEDATA_API_KEY = "your_api_key_here"
Restart Codex CLI after saving. Run /mcp inside Codex to confirm the homedata tools loaded.

1. Install the server

Python 3.10 or newer with pip on your PATH.

pip install homedata-mcp

2. Get your API key

Sign up free and copy your key from the developer dashboard. Paste it into HOMEDATA_API_KEY.

3. Restart Codex CLI

Restart Codex CLI after saving. Run /mcp inside Codex to confirm the homedata tools loaded.

What your AI can ask about UK property

Typed tools Codex CLI gains the moment the Homedata MCP is connected.

search_address Free

Type-ahead UK address search across all 29 million properties — find a UPRN in milliseconds.

lookup_property Included

Pull the full property record for any UK UPRN — characteristics, tenure, build period and more.

lookup_epc Included

Energy performance certificate rating, score and recommendations from the official EPC register.

lookup_flood_risk Included

River, sea, surface and groundwater flood risk for any UK address — sourced from the Environment Agency.

get_planning_applications Included

Recent planning applications for a postcode or local authority — applicant, description, status, decision dates.

get_crime Included

Crime statistics for the surrounding area, broken down by category and month.

get_schools Included

Nearby state and independent schools with Ofsted rating, type and distance.

get_transport Included

Closest rail, tube and tram stations with walking distance and line information.

get_postcode_profile Included

Aggregated profile for any UK postcode — sales activity, average prices, area scores.

batch_property_lookup Included

Look up multiple properties at once — pass a list of UPRNs, get back full property records for each.

search_property_listings Paid plans

Live UK property listings from Home.co.uk — for sale, to rent, sold STC, price changes.

get_property_sales Paid plans

Land Registry sale history for a property — every transaction since 1995 with price and date.

Tools call the same endpoints documented on /docs/endpoints. Property data sourced from Home.co.uk, Land Registry, EPC register, Environment Agency, ONS, Ofsted and other authoritative UK sources. Sales, listings and comparables are surfaced for customers on higher-tier plans — see plans.

What developers build with Codex CLI and Homedata

Concrete jobs the Homedata MCP unlocks inside Codex CLI.

Build a property-data agent — have Codex generate a script that lookups EPC and risk on every UPRN in a list.

Use Codex CLI to scaffold a UK property search feature against the real Homedata API without manually wiring SDKs.

Codex CLI + Homedata MCP — frequently asked questions

How do I add an MCP server to Codex CLI?
Codex CLI's config lives at ~/.codex/config.toml. Add an [mcp_servers.homedata] block with command = "homedata-mcp" and env = { HOMEDATA_API_KEY = "…" }. Save and re-launch Codex — /mcp will list homedata as connected.
Does Codex CLI support all the homedata-mcp tools?
Yes. Codex CLI implements the full MCP tool spec, so every tool the homedata server exposes — address search, EPC, flood, planning, schools and more — is available to the agent.
What Python version does Codex CLI need for homedata-mcp?
Python 3.10 or newer. The homedata-mcp wheel installs cleanly into any recent Python; Codex CLI itself is unaffected by the Python version because the MCP server runs as a separate process.

Using another AI tool?

The Homedata MCP works with every major MCP-compatible client. Each one has its own install snippet.

Claude Desktop

Anthropic's official desktop app for Claude.

Install in Claude Desktop →

Claude Code

Anthropic's terminal-native coding agent.

Install in Claude Code →

Cursor

AI-first code editor built on VS Code.

Install in Cursor →

Windsurf

Codeium's agentic IDE built for flow.

Install in Windsurf →

Cline

VS Code extension by the Cline team — autonomous coding inside your editor.

Install in Cline →

Continue.dev

Open-source AI assistant for VS Code and JetBrains.

Install in Continue.dev →

Zed

High-performance, multiplayer code editor.

Install in Zed →

Or head back to the MCP hub for the full overview.

Plug 29 million UK properties into Codex CLI

Install in under sixty seconds. Free tier, paid plans unlock sales, listings and comparables.

Get a key Read API docs View on GitHub

Latest release: homedata-mcp v0.2.0 on PyPI@if($githubStars) · ★ 0 on GitHub@endif