# Montgomery County MD Housing License Portfolio Status Monitor (`plym-actor-factory/us-md-montgomery-housing-licensenumber-portfolio-status-monitor`) Actor

Watch named Montgomery County MD housing licensenumber values; emit APPEARED/DROPPED/STATUS_CHANGED from official Socrata et5s-xste. Portfolio PPE only — not a citywide dump; not NYC DOB/DCWP/DE POL/WA DOH/Calgary twin; not STR lead scraper.

- **URL**: https://apify.com/plym-actor-factory/us-md-montgomery-housing-licensenumber-portfolio-status-monitor.md
- **Developed by:** [Daniel Witney](https://apify.com/plym-actor-factory) (community)
- **Categories:** AI, Automation, Business
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $20.00 / 1,000 montgomery housing license status event delivereds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## Montgomery County MD Housing License Portfolio Status Monitor

Watch a **named book** of Montgomery County, Maryland housing `licensenumber` values against the official [Housing Licensing and Registration](https://data.montgomerycountymd.gov/Consumer-Housing/Housing-Licensing-and-Registration/et5s-xste) Socrata dataset (`et5s-xste`). Emit billable portfolio events only when something changes.

### Who this is for

KYB / landlord-compliance / insurer / lender / PropTech desks that need watchlist events when a **named** Montgomery County rental housing license appears, drops, or changes `licensestatus` (Licensed / Unlicensed / Pending / Revoked/Suspended / Denied / …) or license type / structure / ownership / address.

### What you get

| Event | When |
|-------|------|
| `APPEARED` | Watched license newly present on the published Housing Licensing extract |
| `DROPPED` | Watched license absent from the current extract (honest republish lag) |
| `STATUS_CHANGED` | `licensestatus` changed (Licensed / Unlicensed / Pending / Revoked/Suspended / Denied / …) |
| Attribute events | License type / structure type / ownership / address (opt-in via `signalGroups`) |
| `RUN_STATUS` | Non-billable health (`FIXTURE_HEALTH` / `MONITOR_IDLE` / `CATCHUP_COMPLETE`) |

### Pricing (PPE)

- **Primary:** `montgomery-housing-license-status-event-delivered` @ **$0.02** per unique change event
- **Start:** `apify-actor-start` @ **$0.00005**
- Quiet books with no changes → `MONITOR_IDLE` only (no event charges)

### Not this Actor

- **Not** NYC DOB trades licenses (#75) / NYC DCWP Issued Licenses (#71) / DE POL (#73) / WA DOH (#72) / Calgary getbusid (#74)
- **Not** a short-term rental (STR) permit lead scraper
- **Not** a citywide Montgomery housing dump billed as rows — watchlist SoQL only
- **Not** occupational / contractor licence monitors for other agencies

### Input

Provide `licenseNumbers` (digits). Optional aliases: `licenses`, `licenseNos`. Set `sourceMode` to `live` for production polls against Montgomery County Open Data.

#### PRODUCTION USE

```json
{
  "licenseNumbers": ["11825", "42308", "73091"],
  "signalGroups": ["directory", "status"],
  "sourceMode": "live",
  "resumeFromCheckpoint": true,
  "maxRunSeconds": 180,
  "maxEvents": 500
}
```

Default Store / health path uses `sourceMode=fixture` with `emitFixtureDemoEvents=false` (non-billable `FIXTURE_HEALTH` row only).

### Cadence honesty

As-of dates follow Montgomery County Open Data / Socrata republish (`rowsUpdatedAt` / `Last-Modified` when present). The published dataset description states it is **updated annually** — schedule monitors accordingly; do not claim realtime.

### Limitations

- Official open dataset only; no County login or private landlord portal.
- Absent IDs emit `DROPPED` against the current published extract (honest lag).
- Status vocabulary is whatever Montgomery publishes (Licensed, Unlicensed, Pending, Revoked/Suspended, Denied, …).

# Actor input Schema

## `licenseNumbers` (type: `array`):

Montgomery County Housing Licensing and Registration license numbers to monitor against official Socrata et5s-xste. Exact match after normalize (digits). Invalid entries skipped with no charge. Not a citywide dump — only IDs on the book are evaluated.

## `licenses` (type: `array`):

Alias of licenseNumbers.

## `licenseNos` (type: `array`):

Alias of licenseNumbers.

## `signalGroups` (type: `array`):

directory = APPEARED/DROPPED; status = STATUS_CHANGED; attributes = license type / structure type / ownership / address changes.

## `maxRunSeconds` (type: `integer`):

Hard run budget in seconds.

## `maxEvents` (type: `integer`):

Max billable change events to deliver this run.

## `resumeFromCheckpoint` (type: `boolean`):

Resume entity baselines and seen event UIDs from the actor key-value store.

## `sourceMode` (type: `string`):

fixture = offline fixtures (FIXTURE_HEALTH / demo). live = official Montgomery County Open Data Socrata.

## `emitFixtureDemoEvents` (type: `boolean`):

When sourceMode=fixture, emit CATCHUP APPEARED/DROPPED/STATUS_CHANGED demo events (charges in cloud).

## `asOfHint` (type: `string`):

Optional as-of date hint (YYYY-MM-DD) for live runs.

## `maxTotalChargeUsd` (type: `number`):

Optional Apify platform max total charge USD for this run.

## `socrataUrl` (type: `string`):

Override official Montgomery Housing Licensing Socrata resource URL (default data.montgomerycountymd.gov/resource/et5s-xste.json).

## Actor input object example

```json
{
  "licenseNumbers": [
    "11825",
    "153204",
    "73091",
    "42308"
  ],
  "signalGroups": [
    "directory",
    "status"
  ],
  "maxRunSeconds": 180,
  "maxEvents": 500,
  "resumeFromCheckpoint": true,
  "sourceMode": "fixture",
  "emitFixtureDemoEvents": false,
  "socrataUrl": "https://data.montgomerycountymd.gov/resource/et5s-xste.json"
}
```

# Actor output Schema

## `OUTPUT` (type: `string`):

JSON summary: delivered, charged, runStatus, checkpoint, stats, Montgomery housing licensenumber coverage limits

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {};

// Run the Actor and wait for it to finish
const run = await client.actor("plym-actor-factory/us-md-montgomery-housing-licensenumber-portfolio-status-monitor").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {}

# Run the Actor and wait for it to finish
run = client.actor("plym-actor-factory/us-md-montgomery-housing-licensenumber-portfolio-status-monitor").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{}' |
apify call plym-actor-factory/us-md-montgomery-housing-licensenumber-portfolio-status-monitor --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,plym-actor-factory/us-md-montgomery-housing-licensenumber-portfolio-status-monitor"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/4rjIr5Tk2M6IxUCGm/builds/KZmidB5hQGsCVE2cR/openapi.json