How to use crossref.org API resource, /journals, for journals?

crossref.org API resource /journals allows you to to list, search or retrieve journal entries. It supports the following variations and parameters:

1. Get the first 20 journals:

fyicenter$ curl https://api.crossref.org/journals

2. Search for journals with keywords:

fyicenter$ curl https://api.crossref.org/journals?query={keywords}

3. Loop over all journals:

fyicenter$ curl https://api.crossref.org/journals?offset=0&rows=20
fyicenter$ curl https://api.crossref.org/journals?offset=20&rows=20
...

4. Get details of a given journal identified by an ISSN:

fyicenter$ curl https://api.crossref.org/journals/{issn}
fyicenter$ curl https://api.crossref.org/journals/0360-4012

{
  "message": {
    "ISSN": [
      "0360-4012",
      "1097-4547"
    ],
    "breakdowns": {
      "dois-by-issued-year": [
        [
          2009,
          493
        ],
        [
          2002,
          402
        ],
        [
          2001,
          395
        ],
        [
          2004,
          393
        ],
        [
          2007,
          386
        ],
        [
          2021,
          225
        ],
                ...
      ]
    },
    "counts": {
      "backfile-dois": 10734,
      "current-dois": 563,
      "total-dois": 11297
    },
         ...
    "issn-type": [
      {
        "type": "print",
        "value": "0360-4012"
      },
      {
        "type": "electronic",
        "value": "1097-4547"
      }
    ],
    "last-status-check-time": 1665101159024,
    "publisher": "Wiley (John Wiley & Sons)",
    "subjects": [
      {
        "ASJC": 2804,
        "name": "Cellular and Molecular Neuroscience"
      }
    ],
    "title": "Journal of Neuroscience Research"
  },
  "message-type": "journal",
  "message-version": "1.0.0",
  "status": "ok"
}

⇒ crossref.org API - /members for Publishers

⇐ crossref.org API - /works for Research Papers

⇑ Crossref.org DOI Database

⇑⇑ DOI - Frequently Asked Questions