One key, many sources
Use the same credential across supported operations and check capabilities for each source.
Find RentCast ZIP markets for a supported US postal code. Get structured JSON through one RealtyCrawl API key.
Use platforms=["fhfa"] and a state name/code query, or a supported US location selector. Query and location are alternatives. This operation requests source data through its enabled adapter. Preserve observation times, source warnings and any idempotent-replay metadata. Check live capabilities for accepted inputs and availability before running your request.
Find RentCast ZIP markets for a supported US postal code.
Example request
curl --request POST 'https://realtycrawl.dev/v1/markets/search' \
--header "x-api-key: $REALTYCRAWL_API_KEY" \
--header 'X-Max-Credits: 50' \
--header 'Content-Type: application/json' \
--header 'Idempotency-Key: YOUR_IDEMPOTENCY_KEY' \
--data '{"platforms":["rentcast"],"query":"California"}'import os
import json
import requests
headers = {
"X-Max-Credits": "50",
"Content-Type": "application/json",
"Idempotency-Key": "YOUR_IDEMPOTENCY_KEY"
}
headers["x-api-key"] = os.environ["REALTYCRAWL_API_KEY"]
payload = json.loads("{\"platforms\":[\"rentcast\"],\"query\":\"California\"}")
response = requests.request("POST", "https://realtycrawl.dev/v1/markets/search",
headers=headers, json=payload, timeout=60)
response.raise_for_status()
print(json.dumps(response.json(), indent=2))const response = await fetch("https://realtycrawl.dev/v1/markets/search", {
method: "POST",
headers: {
"x-api-key": process.env.REALTYCRAWL_API_KEY,
...{
"X-Max-Credits": "50",
"Content-Type": "application/json",
"Idempotency-Key": "YOUR_IDEMPOTENCY_KEY"
}
},
body: JSON.stringify({
"platforms": [
"rentcast"
],
"query": "California"
})
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
console.log(await response.json());| Parameter | Required | Description |
|---|---|---|
| platforms | Yes | platforms |
| query | Yes | query |
| location | No | A location selector supported by this source: text, postal code, bounding box, radius, polygon, or source region. Check capabilities before choosing one. |
| limit | No | Requested result count, from 1 to 100. The default for source searches is 10; source limits may also apply. |
| cursor | No | The continuation cursor from a preceding response, for sources that support pagination. |
Use platforms=["fhfa"] and a state name/code query, or a supported US location selector. Query and location are alternatives.
The response includes an array of state markets in data, plus source outcomes and request metadata. Explore the structure below before making a call.
{
"data": [
{
"id": "mkt_rentcast_90210",
"name": "ZIP 90210",
"country": "US",
"geography_type": "zip_code",
"source": {
"platform": "rentcast",
"provider": "rentcast",
"country": "US",
"native_id": "90210",
"url": null,
"observed_at": "2026-01-01T12:00:00Z",
"retrieved_at": "2026-01-01T12:00:00Z",
"access_class": "licensed_feed"
}
}
],
"meta": {
"request_id": "example_request",
"schema_version": "1.0.0",
"generated_at": "2026-01-01T12:00:00Z",
"completeness": "unknown",
"sources": [
{
"platform": "rentcast",
"status": "success"
}
]
}
}Schema example with placeholder values; not a live source result. Actual fields, values, and completeness vary by source and request.
Send a POST request with your API key and accepted inputs. RealtyCrawl returns structured JSON and preserves the source context for your application.
Method
POST
Response
JSON · CSV · NDJSON
POST /v1/markets/searchKeep source collection behind a shared interface so you can focus on the product you’re building.
Use familiar HTTP requests, inspect a common schema, and connect the results to the tools your team already uses.
Use the same credential across supported operations and check capabilities for each source.
Keep currencies, area units, source identifiers, and observation times with your results.
Call the API with cURL, Python, TypeScript, or any backend that can send an HTTP request.
import requests
# Check current source availability before collecting.
response = requests.get(
'https://realtycrawl.dev/v1/meta/capabilities',
params={'platform': 'zillow'}
)
response.raise_for_status()
capabilities = response.json()// Check current source availability before collecting.
const response = await fetch(
'https://realtycrawl.dev/v1/meta/capabilities?platform=zillow'
);
if (!response.ok) throw new Error('Request failed');
const capabilities = await response.json();curl 'https://realtycrawl.dev/v1/meta/capabilities?platform=zillow'import requests
# Check current source availability before collecting.
response = requests.get(
'https://realtycrawl.dev/v1/meta/capabilities',
params={'platform': 'redfin'}
)
response.raise_for_status()
capabilities = response.json()// Check current source availability before collecting.
const response = await fetch(
'https://realtycrawl.dev/v1/meta/capabilities?platform=redfin'
);
if (!response.ok) throw new Error('Request failed');
const capabilities = await response.json();curl 'https://realtycrawl.dev/v1/meta/capabilities?platform=redfin'import requests
# Check current source availability before collecting.
response = requests.get(
'https://realtycrawl.dev/v1/meta/capabilities',
params={'platform': 'realtor'}
)
response.raise_for_status()
capabilities = response.json()// Check current source availability before collecting.
const response = await fetch(
'https://realtycrawl.dev/v1/meta/capabilities?platform=realtor'
);
if (!response.ok) throw new Error('Request failed');
const capabilities = await response.json();curl 'https://realtycrawl.dev/v1/meta/capabilities?platform=realtor'import requests
# Check current source availability before collecting.
response = requests.get(
'https://realtycrawl.dev/v1/meta/capabilities',
params={'platform': 'rightmove'}
)
response.raise_for_status()
capabilities = response.json()// Check current source availability before collecting.
const response = await fetch(
'https://realtycrawl.dev/v1/meta/capabilities?platform=rightmove'
);
if (!response.ok) throw new Error('Request failed');
const capabilities = await response.json();curl 'https://realtycrawl.dev/v1/meta/capabilities?platform=rightmove'import requests
# Check current source availability before collecting.
response = requests.get(
'https://realtycrawl.dev/v1/meta/capabilities',
params={'platform': 'idealista'}
)
response.raise_for_status()
capabilities = response.json()// Check current source availability before collecting.
const response = await fetch(
'https://realtycrawl.dev/v1/meta/capabilities?platform=idealista'
);
if (!response.ok) throw new Error('Request failed');
const capabilities = await response.json();curl 'https://realtycrawl.dev/v1/meta/capabilities?platform=idealista'{
"platform": "zillow",
"operation": "searchPlatformListings",
"status": "active",
"geographies": [
"US"
],
"execution": "sync"
}{
"platform": "redfin",
"operation": "searchPlatformListings",
"status": "active",
"geographies": [
"US"
],
"execution": "sync"
}{
"platform": "realtor",
"operation": "searchPlatformListings",
"status": "active",
"geographies": [
"US"
],
"execution": "sync"
}{
"platform": "rightmove",
"operation": "searchPlatformListings",
"status": "active",
"geographies": [
"GB"
],
"execution": "sync"
}{
"platform": "idealista",
"operation": "searchPlatformListings",
"status": "active",
"geographies": [
"ES"
],
"execution": "sync"
}Find answers to common questions about RentCast requests, responses, and credits.
Contact usCreate an account for 500 trial credits, check live capabilities for RentCast, and use the example request above with your API key. This operation lists 50 credits per successful call.
The JSON response contains an array of state markets in data. The meta object carries request diagnostics and source outcomes. CSV/NDJSON exports contain data records with request and credit metadata in headers.
Use platforms=["fhfa"] and a state name/code query, or a supported US location selector. Query and location are alternatives.
Availability is operation-specific. Check /v1/meta/capabilities for the platform’s live status, accepted selectors, and markets. Unavailable requests are not charged.
RealtyCrawl is an independent real estate data API and is not affiliated with RentCast.
Get your API key and start building a source-linked property workflow.
50 credits per successful call · Failed calls are refunded