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co.addressintel/permits

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SF Peninsula building permits and parcel buildability: SB 9, ADU and redevelopment leads.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package addressintel-mcp
Claude Code 
claude mcp add permits -e 'ADDRESSINTEL_API_KEY=<your addressintel_api_key>' -- npx -y addressintel-mcp@1.1.2
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "permits": {
            "command": "npx",
            "args": [
                "-y",
                "addressintel-mcp@1.1.2"
            ],
            "env": {
                "ADDRESSINTEL_API_KEY": "<your addressintel_api_key>"
            }
        }
    }
}

Environment variables

  • ADDRESSINTEL_API_KEY secret AddressIntel API key. Optional: without one the server uses the public demo tier (10 requests/minute, 5 rows per call). Free keys at https://addressintel.co/developers

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. AddressIntel MCP server
  2. Tools
  3. Install
  4. Configuration
  5. Development

AddressIntel MCP server

A read-only Model Context Protocol server that puts SF Peninsula building-permit and parcel-buildability data inside Claude, ChatGPT, or any other MCP-capable agent.

It is a thin client over the public AddressIntel API, so it inherits that API's auth, rate limits and tier ceilings. Every tool is a GET. Nothing here can write.

Tools

ToolWhat it answers
search_permitsWhat construction has actually been permitted at an address or in a city? Filters on city, keyword (address, project type, scope description, contractor, architect, permit number) and minimum valuation.
list_sb9_inventoryWhich active listings can be split or duplexed under SB 9, and what blocks the ones that can't?
list_adu_leadsWhich parcels have room for an ADU, and how many units / how much square footage?
list_redevelopment_leadsWhich parcels are underbuilt against their allowable envelope (scrape-and-rebuild or expansion)?
list_market_signalsWhich listings score highest for teardown or flip potential?
get_property_intelligenceFull scores and comparable sales for one property id.

The permit and parcel tools are the differentiated half: permit-level detail and parcel-level buildability for the Peninsula, rather than a nationwide owner list.

Install

No install step: npx fetches it on demand.

Claude Code
claude mcp add addressintel \
  -e ADDRESSINTEL_API_KEY=your_key \
  -- npx -y addressintel-mcp
Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "addressintel": {
      "command": "npx",
      "args": ["-y", "addressintel-mcp"],
      "env": {
        "ADDRESSINTEL_API_KEY": "your_key"
      }
    }
  }
}
From source

For working on the server itself:

git clone https://github.com/RantumBits/addressintel-mcp.git
cd addressintel-mcp
npm install
npm run build     # emits dist/index.js

Then point the client at node /absolute/path/to/addressintel-mcp/dist/index.js instead of the npx command above.

Restart the client, then ask it something like "what demolition permits were issued in Menlo Park this year?" or "which Palo Alto listings are SB 9 eligible?"

Configuration

VariableDefaultNotes
ADDRESSINTEL_API_KEYdemoWithout a key the server uses the public demo tier: 10 requests/minute, 5 rows per call. Grab a free key at https://addressintel.co/developers for 30/min and 25 rows; the key is emailed to the address you enter.
ADDRESSINTEL_API_BASEhttps://addressintel.co/apiPoint at a local dev server (http://localhost:3000/api) when working on the API.

Development

npm run dev       # run from source over stdio
node test_mcp.mjs # smoke test: connect, list tools, call one

Tools are declared in one table in src/index.ts. Each entry carries its zod schema and its advertised JSON Schema side by side, so adding a tool means adding one entry, and the two shapes cannot drift apart.

Frequently asked questions

What is co.addressintel/permits?

SF Peninsula building permits and parcel buildability: SB 9, ADU and redevelopment leads.

How do I install co.addressintel/permits?

It runs on your machine. In Claude Code: claude mcp add permits -e 'ADDRESSINTEL_API_KEY=<your addressintel_api_key>' -- npx -y addressintel-mcp@1.1.2. For other clients, paste the JSON configuration from this page into their MCP settings.

Does co.addressintel/permits need an API key?

Yes. It expects ADDRESSINTEL_API_KEY, which you set in its configuration.

Is co.addressintel/permits open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains co.addressintel/permits?

It is published by RantumBits. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.