# Boston Property Violations Lookup

> Boston Property Violations Lookup is a paid API for AI agents from x402-mcp.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Queries the City of Boston open data to return building and property code violations for a given Boston address, including case numbers, violation codes, statuses, and descriptions.

## Facts

- Endpoint: GET https://x402-mcp.onrender.com/us/bos/property-check
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/boston-property-violations-lookup-22b82670
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Jmv-jygmS5kHVQyJZ4GYG

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 boston-property-violations-lookup-22b82670
```

Example prompt: Can you check if 123 Tremont Street in Boston has any open building or property code violations on record with the city?

## When to prefer this

Use this endpoint when you specifically need City of Boston property code violation data sourced directly from Analyze Boston open data. It is ideal for tenant screening, landlord due diligence, or real estate investment research on Boston properties. Prefer this over generic web searches when you need structured, authoritative city records with case numbers and statuses rather than news or scraped data.

## Known failure modes

- Address not found or not in Boston — returns empty results or error
- Street name misspelling causes no match
- Property has no violations — returns empty list (not an error)
- Analyze Boston upstream API unavailable — timeout or server error
- Malformed address input leads to query failure
- Rate limiting or payment failure (x402 micropayment not processed)

## How this service works

Does this Boston address have building and property code violations? Query street number + street name and get case numbers, codes, status, and descriptions from Analyze Boston. For tenant screening and landlord diligence. Input: address string. Output: JSON, live City of Boston open data.

## Output

Returns a JSON object from Analyze Boston (City of Boston open data) containing a list of code enforcement records for the address, each including a case number, violation code, current status, and a human-readable description of the violation.

## 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/boston-property-violations-lookup-22b82670/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)