v0.1 Draft · MIT Licensed

— The Property AI Operating System

Real Estate Artificial Intelligence Agent Protocol

An open protocol for AI agents to discover, verify and transact property — directly between agents, without a portal in the middle.

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Protocol stack

Google A2A

General agent-to-agent communication

Open

└──

RAIA™ Protocol

Property vertical — estate agents + personal AI

Vertical

└──

Anthropic MCP

Transport layer — agents connect to RAIA tools

Transport

Trademark

RAIA™ UK00003359082 · Classes 36 + 42
Registered 2018 · EstateAigents Ltd

Like Android for mobile, RAIA™ is open infrastructure that no single actor controls. Any agent can run on it. Any AI assistant can query it. Any developer can build on it.

The difference from Android: RAIA is governed by Move Home Organisation CIC — a UK community interest company. Not a corporation. The protocol belongs to the community.

RAIA has two expressions:

RAIA Protocol — the open standard. MIT licensed. What developers implement. What AI agents speak.

RAIA OS — the operating system for your agency. Viewings, compliance, listings, enquiries, rent collection. All coordinated. All on open infrastructure.

EstateAigents.com is the reference implementation.

MoveHome.org is the free public portal built on the same rails.

Six capabilities

What RAIA defines

Each capability is independently implementable. Start with Discover. Add the rest when ready.

Discover

AI agents find verified estate agents and their live portfolios via the RAIA registry.

Query

Structured property search — location, type, price, dates, tenure, amenities.

Verify

Agent identity, licence status, and jurisdiction compliance signals — no anonymous listings.

Transact

Viewing requests, offer management, fee splits — negotiated agent to agent.

Trust

Only licensed, verified agents list on the protocol. Jurisdiction compliance enforced per market.

Portability

Your Aigent tracks qualifications, CPD records, memberships and career history — portable across every agency you work with, verifiable by any counterparty.

Open infrastructure

Built on top of existing standards

RAIA is not a new transport layer. It is a vertical implementation of two existing open standards — adding a property schema and trust layer on top.

🔗

Google A2A Protocol

Agent-to-agent communication, discovery, task routing

↗

⚡

Anthropic MCP

Model-to-tool connections, structured data access

↗

🏠

RAIA™ Protocol

Property schema + trust layer — built on both

↗

Example — search request

        {

          "raia_version": "0.1",

          "request_type": "property_search",

          "market": "lettings",

          "requirements": {

            "un_locode": "GBLON",

            "bedrooms_min": 2,

            "rent_pcm_max": 2800,

            "currency": "GBP",

            "available_from": "2026-06-01"

          },

          "buyer_agent": {

            "agent_id": "claude-assistant",

            // end-client identity never exposed

            "acting_for": "anonymous"

          }

        }

Full JSON schemas publish with v1.0 · Q3 2026

Global standard

Jurisdictional modules

A global mechanical core with community-contributed legal adapters per market. Add your jurisdiction.

United Kingdom

Draft

Thailand

Draft

Singapore

Planned

United States

Planned

European Union

Planned

Reference implementation

Built by the team behind EstateAigents.com

RAIA Protocol is proven in production. EstateAigents.com is the reference marketplace — the only platform that has implemented the full protocol stack end to end.

5,000+

Properties managed

Jurisdictions live

2018

Trademark registered

ARLA Licensed TPO Registered MyDeposits NRLA Member ICO Registered

Visit EstateAigents.com ↗ View on GitHub

Version	Status	Date
v0.1	Draft — not for production	April 2026
v1.0	JSON schemas + MCP server	Q3 2026

— The Property AI Operating System

What RAIA defines

Built on top of existing standards

Jurisdictional modules

Built by the team behind EstateAigents.com

Status

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