Higgsfield · Authentication Profile

Higgsfield Authentication

Authentication

The Higgsfield API authenticates with an API key and secret issued from the Higgsfield Cloud dashboard (cloud.higgsfield.ai). Credentials are sent on the Authorization header using the custom "Key" scheme: "Authorization: Key {api_key}:{api_key_secret}". There is no OAuth 2.0 / OIDC scope surface on the REST API (OAuth is used only for the remote MCP server). The OpenAPI document does not declare securitySchemes; this profile is captured from the developer docs.

Higgsfield secures its APIs with http across 1 declared security scheme, as derived from its OpenAPI definitions.

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Methods: http Schemes: 1 OAuth flows: API key in: header

Security Schemes

HiggsfieldKey http
scheme: Key · in: header ()

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-19'
method: searched
source: https://docs.higgsfield.ai/docs/how-to/introduction + https://docs.higgsfield.ai/docs/how-to/sdk
docs: https://docs.higgsfield.ai/docs/how-to/introduction
description: >-
  The Higgsfield API authenticates with an API key and secret issued from the
  Higgsfield Cloud dashboard (cloud.higgsfield.ai). Credentials are sent on the
  Authorization header using the custom "Key" scheme:
  "Authorization: Key {api_key}:{api_key_secret}". There is no OAuth 2.0 / OIDC
  scope surface on the REST API (OAuth is used only for the remote MCP server).
  The OpenAPI document does not declare securitySchemes; this profile is
  captured from the developer docs.
summary:
  types:
  - http
  api_key_in:
  - header
  oauth2_flows: []
schemes:
- name: HiggsfieldKey
  type: http
  scheme: Key
  in: header
  header: Authorization
  format: "Key {api_key}:{api_key_secret}"
  description: >-
    Custom Authorization scheme. The value is the literal word "Key" followed by
    the API key and secret joined with a colon. Generate credentials in the
    Higgsfield Cloud dashboard.
  sources:
  - https://docs.higgsfield.ai/docs/how-to/introduction
credentials:
  dashboard: https://cloud.higgsfield.ai/
  sdk_env_vars:
  - HF_KEY  # "your-api-key:your-api-secret"
  - HF_API_KEY
  - HF_API_SECRET