# SF Housing NOV Check

> SF Housing NOV 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).

Looks up San Francisco Department of Building Inspection notices of violation (NOV) for a given address, returning NOV status, category, filing date, and division.

## Facts

- Endpoint: GET https://x402-mcp.onrender.com/us/sf/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/sf-housing-nov-check-1dec1d2c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6Rbn5X3Eeg4KnjMpDleAP

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 sf-housing-nov-check-1dec1d2c
```

Example prompt: Can you check if the property at 1234 Mission Street in San Francisco has any notices of violation on file with the Department of Building Inspection?

## When to prefer this

Use this endpoint when you need real-time, official SF Department of Building Inspection notice of violation data for a specific San Francisco address. It queries live SF Open Data, making it ideal for tenant screening, landlord diligence, and lending compliance checks where authoritative city records are required. Prefer this over generic property APIs when the specific question is about DBI notices of violation in San Francisco.

## Known failure modes

- Address not found or not in SF Open Data — returns empty results or 404
- Malformed address input causes no match — ensure house number and street name are correctly separated
- SF Open Data API unavailability — may return a service error
- Address exists but has no NOVs — returns empty violations array (not an error)
- Rate limiting or payment failure for $0.01 USDC per call

## How this service works

Does this San Francisco address have Department of Building Inspection notices of violation? Query house number + street and get NOV status, category, filing date, and division. For tenant screening, landlord diligence, and lending checks. Input: address string. Output: JSON, live SF Open Data.

## Output

Returns a JSON object from SF Open Data containing notice of violation status, violation category, filing date, and the DBI division that issued the notice for the queried San Francisco address.

## 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/sf-housing-nov-check-1dec1d2c/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)