Free Currency API · Authentication Profile

Freecurrencyapi Authentication

Authentication

Free Currency API secures its APIs with apiKey across 2 declared security schemes, as derived from its OpenAPI definitions.

CurrencyExchange RatesFinanceHistorical DataFree
Methods: apiKey Schemes: 2 OAuth flows: API key in: header, query

Security Schemes

ApiKeyQuery apiKey
· in: query (apikey)
ApiKeyHeader apiKey
· in: header (apikey)

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/openapi.yml
summary:
  types:
  - apiKey
  api_key_in:
  - header
  - query
schemes:
- name: ApiKeyQuery
  type: apiKey
  in: query
  parameter: apikey
  description: 'API key passed as a query parameter. Note: this may expose your API key in access
    logs. Using the header method is recommended.'
  sources:
  - openapi/openapi.yml
- name: ApiKeyHeader
  type: apiKey
  in: header
  parameter: apikey
  description: API key passed as an HTTP header (recommended method).
  sources:
  - openapi/openapi.yml

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