# NYC Property Valuation & Tax Assessment Lookup

> NYC Property Valuation & Tax Assessment Lookup is a paid API for AI agents from store.agentexchange.work, paid per call via x402, $0.09/call, status unknown (last checked 2026-09-13).

Fetches real estate property details, lot characteristics, tax assessments, and market valuation estimate ranges for New York City properties by address or zip code.

## Facts

- Endpoint: GET https://store.agentexchange.work/property/valuation
- Price: $0.09/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nyc-property-valuation-tax-assessment-lookup-338794d6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ylpUK1pGqqoVkE54vc6RB

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 nyc-property-valuation-tax-assessment-lookup-338794d6
```

Example prompt: Can you pull up the property details, tax assessment, and market valuation estimate for 123 Atlantic Ave, Brooklyn, NY 11201?

## When to prefer this

Use this endpoint when you need structured NYC-specific real estate data including tax assessments, lot details, and valuation estimates for a known address or zip code. Prefer this over generic real estate search APIs when the property is specifically in New York City and you need authoritative tax/assessment data alongside market estimates.

## Known failure modes

- Address not found in NYC property database — returns empty properties array
- Invalid or missing both address and zipcode parameters — may return empty results or error
- Address outside NYC jurisdiction — endpoint only covers New York City properties
- Ambiguous address matching multiple properties — returns multiple results requiring disambiguation
- Service unavailable or payment failure — HTTP 402 or 5xx error

## How this service works

Fetch real estate property details, lot characteristics, tax assessments, and market valuation estimate ranges for NYC properties.

## Output

Returns an array of matching NYC properties with lot characteristics, tax assessment data, and market valuation estimate ranges, along with a query echo, scan timestamp, diagnostics, and a count of properties found.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "address": {
       "type": "string",
       "description": "Street address to search for (optional)"
      },
      "zipcode": {
       "type": "string",
       "description": "5-digit zip code to search for (optional)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "query": {
       "type": "string"
      },
      "properties": {
       "type": "array"
      },
      "scanned_at": {
       "type": "number"
      },
      "diagnostics": {
       "type": "object"
      },
      "properties_found": {
       "type": "number"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nyc-property-valuation-tax-assessment-lookup-338794d6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from store.agentexchange.work](https://www.zero.xyz/host/store.agentexchange.work/llms.txt)