generated: '2026-07-18'
method: searched
source: https://developer.attendease.com/
docs: https://developer.attendease.com/
summary: >-
  Attendease exposes two authentication models. The Organization API (/api/v2/)
  uses HMAC-SHA1 request signing with an Access Key ID and Secret Access Token.
  The Event API uses per-event attendee/event tokens (query params or headers)
  and also accepts HTTP Basic auth. All requests must use HTTPS.
schemes:
- id: org_api_hmac
  api: Attendease Organization API
  type: http
  scheme: hmac-sha1
  header: Authorization
  format: 'APIAuth <access_key>:<signature>'
  signing:
    algorithm: HMAC-SHA1
    encoding: base64
    canonical_string: content-type,content-MD5,request-URI,timestamp
    timestamp_header: Date
    timestamp_format: RFC 1123
    timestamp_skew_minutes: 15
    content_md5: base64 MD5 of request body (PUT/POST only; empty for GET)
    notes: >-
      Query strings are part of the request URI but are not factored into the
      Content-MD5. Signature = Base64.strict_encode64(HMAC-SHA1(secret_key,
      canonical_string)).
- id: event_attendee_token
  api: Attendease Event API
  type: apiKey
  in: header
  name: X-Attendee-Token
  alt_in: query
  alt_name: attendee_token
  description: Per-attendee access token scoped to a single event.
- id: event_token
  api: Attendease Event API
  type: apiKey
  in: header
  name: X-Event-Token
  description: Event-level access token scoped to a single event subdomain.
- id: event_basic
  api: Attendease Event API
  type: http
  scheme: basic
  description: HTTP Basic auth with email/password (also accepted as query params).
credentials:
  org_api: >-
    Access Key ID + Secret Access Token issued at the organization level.
  event_api: >-
    Attendee tokens managed per event at
    https://attendease.com/events/<event-subdomain>/access_tokens
transport: HTTPS required for all requests.