api.us.socrata.com/api/catalog/v1. Useful when you want to locate a dataset without knowing which agency publishes it. Response pools results across portals and annotates each row with its originating domain.x-api-key: ********************curl --location '/api/v1/socrata/federated-search?q=hospital&limit=10&offset=0&only=dataset' \
--header 'x-api-key: <api-key>'{
"data": {
"domains_queried": "string",
"resultSetSize": 0,
"count": 0,
"limit": 0,
"offset": 0,
"results": [
{
"resource": {
"property1": "string",
"property2": "string"
},
"classification": {
"property1": "string",
"property2": "string"
},
"metadata": {
"property1": "string",
"property2": "string"
},
"permalink": "string",
"link": "string",
"owner": {
"property1": "string",
"property2": "string"
},
"preview_image_url": "string"
}
]
},
"meta": {
"endpoint": "/api/v1/fred/us/cpi",
"data_time": "2026-04-16T14:30:00Z",
"response_time": "2026-04-16T14:30:12Z",
"provider": "Sugra API v1.0.1",
"source": "string",
"fallback_used": true,
"fallback_chain": [
"string"
],
"cached": true
}
}