# x402 Data API — Travis County Property Lookup by TCAD Account Number

> x402 Data API — Travis County Property Lookup by TCAD Account Number is a paid API for AI agents from x402datasource.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-07).

Fetches detailed property appraisal records for a Travis County, Texas parcel using its TCAD account number, paid per-request via the x402 protocol.

## Facts

- Endpoint: GET https://x402datasource.com/api/v1/property/tx/travis/%7BpropertyId%7D?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-07
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-data-api-travis-county-property-lookup-by-tcad-account-number-b4751b99
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hSpkJfpboPhLHuXLjZkXl

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 x402-data-api-travis-county-property-lookup-by-tcad-account-number-b4751b99
```

Example prompt: Pull the Travis County appraisal record for TCAD account number 0100030203 — I need the owner name, market value, assessed value, land area, year built, and any tax exemptions on file.

## When to prefer this

Use this endpoint when you need structured property appraisal data for a specific Travis County (Austin, TX) parcel and already have the TCAD account number. It is ideal for no-subscription, pay-per-request workflows via the x402 protocol. Prefer the sibling address-search endpoint first if you only have an address and need to resolve the account number.

## Known failure modes

- Invalid or unknown TCAD account number returns an error or empty result
- Malformed propertyId path parameter causes a 400 or 422 error
- Payment not settled via x402 protocol results in 402 Payment Required
- Service unavailable or TCAD data temporarily inaccessible returns 503
- Property record not yet updated for the current tax year may return stale data_year

## How this service works

Pay-per-request data API for AI agents. No subscriptions, no API keys — each request is paid using the x402 protocol, settled on-chain. Real-world structured data on demand.

## Output

A JSON object containing the property owner name, full address (street, city, zip), valuation details (land, improvement, market, assessed, appraised values, homestead cap savings), physical details (land sqft, land acres, year built, improvement sqft, price per sqft), tax exemption flags (homestead, over-65, disabled person, disabled veteran), legal description, and the tax data year.

## 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"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "propertyId"
     ],
     "properties": {
      "propertyId": {
       "type": "string",
       "description": "County-specific property identifier — TCAD account number for Travis County (e.g. \"0100030203\"). Passed as a URL path parameter."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "owner": {
       "type": "string",
       "description": "Property owner name."
      },
      "geo_id": {
       "type": "string",
       "description": "County-specific property identifier."
      },
      "values": {
       "type": "object",
       "description": "Property valuation details."
      },
      "address": {
       "type": "object",
       "description": "Property address details."
      },
      "property": {
       "type": "object",
       "description": "Physical property details."
      },
      "data_year": {
       "type": "integer",
       "description": "Tax year of the data."
      },
      "exemptions": {
       "type": "object",
       "description": "Tax exemption flags."
      },
      "legal_description": {
       "type": "string",
       "description": "Legal description of the property."
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "owner": "DJB INVESTMENT PROPERTY LLC",
  "geo_id": "0100030203",
  "values": {
   "land": 4232160,
   "market": 4332066,
   "assessed": 4332066,
   "appraised": 4332066,
   "improvement": 99906,
   "homestead_cap_savings": 0
  },
  "address": {
   "zip": "78704",
   "city": "AUSTIN",
   "full": "1105 S LAMAR BLVD",
   "street": "1105 S LAMAR BLVD"
  },
  "property": {
   "land_sqft": 23512,
   "land_acres": 0.5399,
   "year_built": 1984,
   "price_per_sqft": 253,
   "improvement_sqft": 17100
  },
  "data_year": 2025,
  "exemptions": {
   "over_65": false,
   "homestead": false,
   "disabled_person": false,
   "disabled_veteran": false
  },
  "legal_description": "LOT 1-4 TEMPLER LOTS"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-data-api-travis-county-property-lookup-by-tcad-account-number-b4751b99/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402datasource.com](https://www.zero.xyz/host/x402datasource.com/llms.txt)