v0.1 Draft · MIT Licensed

The protocol for AI agents to transact property.

Real Estate Artificial Intelligence Agent Protocol

RAIA™ is the open standard for AI agents to discover, verify and transact property — lettings, sales and management — agent to agent. Built on Google A2A and Anthropic MCP.

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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
Five capabilities

What RAIA defines

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

01
Discover
AI agents find verified estate agents and their live portfolios via the RAIA registry.
02
Query
Structured property search — location, type, price, dates, tenure, amenities.
03
Verify
Agent identity, licence status, and jurisdiction compliance signals — no anonymous listings.
04
Transact
Viewing requests, offer management, fee splits — negotiated agent to agent.
05
Trust
Only licensed, verified agents list on the protocol. Jurisdiction compliance enforced per market.
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.

GB
United Kingdom
Draft
TH
Thailand
Draft
SG
Singapore
Planned
US
United States
Planned
EU
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
2
Jurisdictions live
2018
Trademark registered
ARLA Licensed TPO Registered MyDeposits NRLA Member ICO Registered
Visit EstateAigents.com ↗ View on GitHub
Roadmap

Status

VersionStatusDate
v0.1Draft — not for productionApril 2026
v1.0JSON schemas + MCP serverQ3 2026
Open standard

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