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

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

1. Get a list of all DOI types:

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

{
  "message": {
    "items": [
      {
        "id": "book-section",
        "label": "Book Section"
      },
      {
        "id": "monograph",
        "label": "Monograph"
      },
      {
        "id": "report",
        "label": "Report"
      },
      {
        "id": "peer-review",
        "label": "Peer Review"
      },
      {
        "id": "book-track",
        "label": "Book Track"
      },
      {
        "id": "journal-article",
        "label": "Journal Article"
      },
      ...
      {
        "id": "standard-series",
        "label": "Standard Series"
      }
    ],
    "total-results": 29
  },
  "message-type": "type-list",
  "message-version": "1.0.0",
  "status": "ok"
}

2. Get a list of all DOI types:

fyicenter$ curl https://api.crossref.org/types/journal-article

{
  "status":"ok",
  "message-type":"type",
  "message-version":"1.0.0",
  "message": {
    "id":"journal-article",
    "label":"Journal Article"
  }
}

⇒ crossref.org API - /licenses for DOI License Types

⇐ crossref.org - DOI Metadata API

⇑ Crossref.org DOI Database

⇑⇑ DOI - Frequently Asked Questions