Slack · Authentication Profile

Slack Authentication

Authentication

Slack secures its APIs with http and oauth2 across 2 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the authorizationCode flow(s).

BotsChatCollaborationMessagingProductivityT1Team Communication
Methods: http, oauth2 Schemes: 2 OAuth flows: authorizationCode API key in:

Security Schemes

slackAuth oauth2
· flows: authorizationCode
bearerAuth http
scheme: bearer

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/slack-assistant-openapi.yml, openapi/slack-bookmarks-openapi.yml, openapi/slack-canvases-openapi.yml,
  openapi/slack-emoji-openapi.yml, openapi/slack-functions-openapi.yml, openapi/slack-lists-openapi.yml,
  openapi/slack-openid-connect-openapi.yml, openapi/slack-web-api-openapi.yml
summary:
  types:
  - http
  - oauth2
  oauth2_flows:
  - authorizationCode
schemes:
- name: slackAuth
  type: oauth2
  flows:
  - flow: authorizationCode
    authorizationUrl: https://slack.com/oauth/v2/authorize
    tokenUrl: https://slack.com/api/oauth.v2.access
    scopes: 1
  sources:
  - openapi/slack-assistant-openapi.yml
  - openapi/slack-bookmarks-openapi.yml
  - openapi/slack-canvases-openapi.yml
  - openapi/slack-emoji-openapi.yml
  - openapi/slack-functions-openapi.yml
  - openapi/slack-lists-openapi.yml
  - openapi/slack-openid-connect-openapi.yml
- name: bearerAuth
  type: http
  scheme: bearer
  description: Slack API uses Bearer token authentication. Pass a bot token or user token in
    the Authorization header.
  sources:
  - openapi/slack-web-api-openapi.yml