Zillow API

x402 pay per call

$0.005 per successful call, paid in USDC on Base. No account or API key required. The live PAYMENT-REQUIRED header quotes the authoritative price.

curl request

curl -i 'https://api.fastaf.co/x402/v1/zillow?url=https%3A%2F%2Fwww.zillow.com%2Fhomes%2FAustin%2C-TX_rb%2F'

Example 402 payment challenge

Illustrative recipient address, not a payment destination. Request a fresh challenge, sign it with an x402 v2 client and retry the same URL with PAYMENT-SIGNATURE. The header is base64 JSON v2; the compatibility body uses v1 aliases on Base. Only successful results settle.

HTTP/1.1 402 Payment Required
Content-Type: application/json
PAYMENT-REQUIRED: eyJ4NDAyVmVyc2lvbiI6MiwicmVzb3VyY2UiOnsidXJsIjoiaHR0cHM6Ly9hcGkuZmFzdGFmLmNvL3g0MDIvdjEvemlsbG93P3VybD1odHRwcyUzQSUyRiUyRnd3dy56aWxsb3cuY29tJTJGaG9tZXMlMkZBdXN0aW4lMkMtVFhfcmIlMkYiLCJkZXNjcmlwdGlvbiI6IkZhc3RBRiBaaWxsb3cgUHJvcGVydHkgTGlzdGluZ3MiLCJtaW1lVHlwZSI6ImFwcGxpY2F0aW9uL2pzb24ifSwiYWNjZXB0cyI6W3sic2NoZW1lIjoiZXhhY3QiLCJuZXR3b3JrIjoiZWlwMTU1Ojg0NTMiLCJhbW91bnQiOiI1MDAwIiwiYXNzZXQiOiIweDgzMzU4OWZDRDZlRGI2RTA4ZjRjN0MzMkQ0ZjcxYjU0YmRBMDI5MTMiLCJwYXlUbyI6IjB4MTExMTExMTExMTExMTExMTExMTExMTExMTExMTExMTExMTExMTExMSIsIm1heFRpbWVvdXRTZWNvbmRzIjozMDAsImV4dHJhIjp7Im5hbWUiOiJVU0QgQ29pbiIsInZlcnNpb24iOiIyIn19XX0=

{
  "error": "payment_required",
  "x402Version": 2,
  "resource": {
    "url": "https://api.fastaf.co/x402/v1/zillow?url=https%3A%2F%2Fwww.zillow.com%2Fhomes%2FAustin%2C-TX_rb%2F",
    "description": "FastAF Zillow Property Listings",
    "mimeType": "application/json"
  },
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "payTo": "0x1111111111111111111111111111111111111111",
      "maxTimeoutSeconds": 300,
      "extra": {
        "name": "USD Coin",
        "version": "2"
      }
    }
  ]
}

Decoded PAYMENT-REQUIRED header

{
  "x402Version": 2,
  "resource": {
    "url": "https://api.fastaf.co/x402/v1/zillow?url=https%3A%2F%2Fwww.zillow.com%2Fhomes%2FAustin%2C-TX_rb%2F",
    "description": "FastAF Zillow Property Listings",
    "mimeType": "application/json"
  },
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "payTo": "0x1111111111111111111111111111111111111111",
      "maxTimeoutSeconds": 300,
      "extra": {
        "name": "USD Coin",
        "version": "2"
      }
    }
  ]
}

JSON discovery response example

Zillow JSON. zillow_data contains listings with zpid, displayed price, address, beds, baths and detailUrl, plus statusText, latLong and zestimate when available. This example is illustrative.

{
  "zillow_data": [
    {
      "zpid": "123456789",
      "price": "$650,000",
      "address": "123 Oak Lane, Austin, TX 78704",
      "beds": 3,
      "baths": 2,
      "statusText": "House for sale",
      "zestimate": 648000,
      "latLong": {
        "latitude": 30.245,
        "longitude": -97.765
      },
      "detailUrl": "https://www.zillow.com/homedetails/123456789_zpid/"
    }
  ]
}

Response with an API key

The same data over REST with a prepaid key. The JSON body is the example above; failed requests are not charged.

curl -H "Authorization: Bearer $FASTAF_API_KEY" 'https://api.fastaf.co/v1/zillow?url=https%3A%2F%2Fwww.zillow.com%2Fhomes%2FAustin%2C-TX_rb%2F'

MCP tools

search_zillow MCP tool calls require an API key or OAuth; x402 payments apply to HTTP data calls.

Full endpoint reference for agents

Pricing

x402: $0.005 per successful call, USDC on Base, no account. API key: 5 credits per request from one-time credit packs, without expiry. Credit packs are shared by every endpoint and never renew.

Free: 500 credits every month after email verification, no card. See pricing. Alternatives: FastAF vs SerpApi, vs toll402, vs serp402, vs AgentBIT, vs Amazon PA-API.

Parameters

Response fields

• zillow_data

Passing these fields to an LLM? See token-aware web scraping for agents.

Guides

• How to read public Zillow data when your requests fail

  Zillow returning 403 or a verification page? Get public Zillow search listings as JSON for 5 credits; blocked or empty answers are not charged.

• Add FastAF to Claude Code, Codex and Cursor

  One remote MCP server, three clients: the claude, codex and Cursor mcp.json setup for https://api.fastaf.co/mcp, with the API key auth it really uses.

FAQ

Other APIs

• Amazon API

  Search, products, offers and bestsellers

• Google Shopping API

  Product prices and merchants

• Walmart API

  Walmart product search results

• Web Scraping API

  Public pages in selectable formats

All APIs → · Guides and benchmarks on the blog →