x-api-key: ********************curl --location '/api/v1/research/crossref/journal/0028-0836' \
--header 'x-api-key: <api-key>'{
"data": {
"journal": {
"ISSN": [
"string"
],
"issn-type": [
{
"value": "string",
"type": "string"
}
],
"title": "string",
"publisher": "string",
"subjects": [
{
"property1": "string",
"property2": "string"
}
],
"counts": {
"current-dois": 0,
"backfile-dois": 0,
"total-dois": 0
},
"breakdowns": {
"property1": "string",
"property2": "string"
},
"coverage": {
"property1": "string",
"property2": "string"
},
"flags": {
"property1": "string",
"property2": "string"
},
"last-status-check-time": 0
}
},
"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
}
}