Dilix

The open-source MCP server for Dilix — the regulatory intelligence layer for real estate AI agents.

npm version CI License: MIT GitHub stars

Add Dilix to any MCP-compatible AI agent in 30 seconds. Get zoning, permits, entitlement roadmaps, state legislation flags, and deal scoring for any US property — surfaced as 10 callable tools.

Heads up: This package is the open-source client. The Dilix API (data + intelligence) requires an API key — get one free at dilix.ai/api-keys.

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Why Dilix exists

Real estate is one of the largest opaque asset classes in the world. Owners close on properties unaware of regulatory shifts that compress NOI. Flippers burn months of carry on permits that never land. Brokers waste deal cycles chasing entitlements that won't clear.

Dilix is the data layer that catches it all — every permit, zoning change, and bill across 16 cities and 11 states, going national. For humans, and the AI agents reshaping the industry.

This MCP package gives those agents direct access.

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Install

npm install -g @dilix/mcp

Or run on demand without installing:

npx @dilix/mcp

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Get an API key

Free tier: 100 calls/month. Sign up at dilix.ai/api-keys.

Set it as an environment variable:

export DILIX_API_KEY="your-key-here"

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Wire it into Claude Desktop

Add to ~/.claude/claude_desktop_config.json (Mac) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "dilix": {
      "command": "npx",
      "args": ["-y", "@dilix/mcp"],
      "env": {
        "DILIX_API_KEY": "your-key-here"
      }
    }
  }
}

Restart Claude Desktop. The Dilix tools will appear in the MCP tool palette.

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Wire it into Cursor / Continue / custom agents

Any MCP-compatible host. Spawn the binary with DILIX_API_KEY in the environment. Speaks standard MCP over stdio.

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Available tools

Tool	What it does
analyze_zoning	Zoning + HCD compliance + state-law flags for any address
get_entitlement_roadmap	Full approval pathway with timelines, fees, risks
lookup_property	Property records, valuation, sale history (US)
find_opportunities	Scan a city for SB-9, SB-79, AB-2011, AB-130 candidates
scan_portfolio	Bulk compliance + opportunity scan across up to 50 properties
watch_parcel	Hourly autonomous monitoring with email alerts
track_permit	Real-time permit status + status-change notifications
analyze_deal	Full deal score: zoning + property + financials + verdict
source_deals	Source candidate properties matching investment criteria
get_market_rates	Live SOFR + 10Y Treasury for cap-rate underwriting

Full schemas: docs/tools.md (coming soon — for now, MCP hosts will expose them automatically once connected).

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Example: Claude analyzing a deal

User: Should I pursue 555 California St for a residential conversion?

Claude (with Dilix MCP):
  1. analyze_zoning(city="San Francisco", address="555 California St")
     → C-3-O zoning · Builder's Remedy active · AB-2011 eligible
  2. get_entitlement_roadmap(...)
     → Ministerial pathway · CEQA exempt · 6-9 mo timeline · $X est. fees
  3. lookup_property(address1="555 California St", address2="SF, CA 94104")
     → Built 1969 · 350K sqft · last sold 2018 · $X assessed

Verdict: Strong candidate. Pursue. Submit SB-330 vesting application
within 30 days to lock current rules.

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Grounding — every tool returns reasoning + sources

Starting in v1.1.0, every Dilix MCP tool surfaces a structured envelope to the host model:

• _reasoning — plain-English narrative the agent can quote verbatim to the user. Composed by Dilix from structured fields, not extrapolated. Eliminates the most common failure mode (host model invents a cap rate / code section / date that wasn't in the response).
• _sources — citations the agent can surface as "Source: X" links. Includes provider, citation text, and a verifiable URL where available. Pulled from real authorities: ATTOM, DataSF, FEMA, HUD, NY Fed, FRED, Cal. Civ. Code, municipal codes, etc.
• _caveats — soft warnings the agent should pass through (e.g. "no parcel-level zoning available for this address — answers are city-level only").
• _schemaVersion — pin behavior across upgrades.

The MCP server splits these into separate content blocks so the host model receives the narrative as the primary text and citations as a structured second block. Agents that want the raw payload still get it as a JSON block.

Endpoints currently emitting the envelope: analyze_deal, analyze_zoning, get_entitlement_roadmap, lookup_property, market_rates, find_opportunities, scan_portfolio. Others fall back to the legacy single-block JSON response.

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Configuration

Env var	Required?	Default	Description
DILIX_API_KEY	Yes	—	Get from dilix.ai/api-keys
DILIX_API_BASE	No	https://api.dilix.ai	Override for self-hosted or staging

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Pricing

The MCP client is free and open-source (MIT). The hosted Dilix API is usage-based:

• Free tier: 100 calls/month
• Pro: $49/month — 5,000 calls
• Agentic: $499/month — 50,000 calls + portfolio monitoring + webhooks
• Enterprise: custom — email [email protected]

See dilix.ai/pricing for the live tiers.

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Why open source?

Same playbook as Anthropic, Vercel, Supabase, Resend: open the developer surface, charge for the data + infrastructure behind it.

We open-sourced the MCP client because:

• Devs deserve to read the code that runs in their agent
• The MCP spec is open (Anthropic, late 2024) — closing the client would be hypocritical
• The client is just the "USB cable." Our actual value is the data + scoring + intelligence behind the API

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Project status

Maintained best-effort by a solo founder. See STATUS.md for expectations and how to help.

For commercial support, custom integrations, or enterprise SLAs: [email protected]

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Security

Found a vulnerability? See SECURITY.md — please email [email protected] (subject: [SECURITY]) rather than opening a public issue.

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Contributing

PRs welcome. Small and focused win. Large refactors usually don't.

git clone https://github.com/dilix-ai/mcp.git
cd mcp
npm install
npm run build
npm run dev

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License

MIT. See LICENSE.

"Dilix" is a trademark of Ownership Theory LLC. The MIT license grants rights to the source code, not to the brand.

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Links

• 🌐 Website: dilix.ai
• 🔑 Get an API key: dilix.ai/api-keys
• 📖 Docs (full): dilix.ai/agents
• 📰 Weekly Briefing: dilix.ai/briefings
• 📧 Contact: [email protected]