JustiFi · Authentication Profile

Justifi Authentication

Authentication

JustiFi secures its APIs with oauth2 and apiKey across 3 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the clientCredentials flow(s).

CompanyFintechPaymentsEmbedded PaymentsPayment FacilitationPayoutsDevelopers
Methods: oauth2, apiKey Schemes: 3 OAuth flows: clientCredentials API key in: header

Security Schemes

OAuthClientCredentials oauth2
BearerToken http
scheme: bearer · in: header (Authorization)
SubAccountHeader apiKey
· in: header (Sub-Account)

Source

Authentication Profile

Raw ↑
generated: '2026-07-19'
method: searched
source: https://docs.justifi.tech/gettingStarted
docs: https://docs.justifi.tech/gettingStarted
note: >-
  The published OpenAPI declares no components.securitySchemes; the authentication
  model below is captured from the JustiFi getting-started documentation.
summary:
  types: [oauth2, apiKey]
  api_key_in: [header]
  oauth2_flows: [clientCredentials]
schemes:
  - name: OAuthClientCredentials
    type: oauth2
    flow: clientCredentials
    token_url: https://api.justifi.ai/oauth/token
    description: >-
      POST your JustiFi client id and client secret to the token endpoint to
      receive an access token valid for 24 hours. Test keys are prefixed test_
      and live keys are prefixed live_; the key you authenticate with selects the
      test or live account.
    token_ttl_seconds: 86400
  - name: BearerToken
    type: http
    scheme: bearer
    in: header
    parameter: Authorization
    description: >-
      Pass the access token from the client-credentials grant in the
      Authorization header on all subsequent requests. A 401 Unauthorized
      response means the token expired and a new one must be requested.
  - name: SubAccountHeader
    type: apiKey
    in: header
    parameter: Sub-Account
    description: >-
      Platforms scope a request to one of their sub accounts (merchants) by
      passing that sub account id in the Sub-Account request header.

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