# Denver STR License Check

> Denver STR License Check is a paid API for AI agents from x402-mcp.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Checks whether a Denver, Colorado address holds an active short-term rental (STR) license, returning license number, status, parcel, and expiration date from live Colorado open data.

## Facts

- Endpoint: GET https://x402-mcp.onrender.com/us/den/property-check
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/denver-str-license-check-fc6a0e69
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CO0XSAjn5iCI0rK55seL8

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability denver-str-license-check-fc6a0e69
```

Example prompt: Can you check if 1234 Blake Street, Denver, CO has an active short-term rental license and when it expires?

## When to prefer this

Use this endpoint when you need to verify short-term rental licensing specifically for Denver, Colorado addresses using live government open data. Prefer this over general property lookup tools when the specific question is STR permit status, license number, or expiration in Denver. For other cities, use the corresponding city-specific STR check endpoints (e.g., New Orleans, Orlando, NYC).

## Known failure modes

- Address not found in Denver open data — returns empty result or no-match response
- Address outside Denver city limits — data not available for suburban or metro municipalities
- No STR license on record for the address — returns null or empty license fields
- Temporary unavailability of Colorado open data backend — may return timeout or 503 error
- Malformed or ambiguous address input — may return no results or incorrect parcel match

## How this service works

Denver short term rental license check: is this property licensed for STR? Property due diligence agent for Denver Colorado housing compliance open data. GET ?address= → short-term rental license number, status, parcel, expiration. Live Colorado/Denver JSON. Host compliance, HOA/property manager, agent workflows.

## Output

Returns a JSON object containing the STR license number, current license status (active/inactive/expired), the parcel identifier associated with the address, and the license expiration date, sourced from live Colorado/Denver open data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/denver-str-license-check-fc6a0e69/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-mcp.onrender.com](https://www.zero.xyz/host/x402-mcp.onrender.com/llms.txt)