Kaiko · Authentication Profile

Kaiko Authentication

Authentication

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

Web3CryptoMarket DataInstitutionalFXIndicesOnchainStreaming
Methods: apiKey Schemes: 1 OAuth flows: API key in: header

Security Schemes

apiKeyHeader apiKey
· in: header (X-Api-Key)

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-22'
method: searched
source: openapi/ security schemes
docs: https://docs.kaiko.com/rest-api/general/getting-started/authentication.md
summary:
  types:
  - apiKey
  api_key_in:
  - header
notes: >-
  All Kaiko REST requests carry the client API key in the X-Api-Key header; each Market
  Data endpoint lives under its own hostname. Keys are provisioned via Kaiko's sales-led
  onboarding (no self-serve signup, no OAuth). Kaiko Stream (gRPC) authenticates with the
  same API key supplied via the per-language SDKs
  (https://docs.kaiko.com/stream/general/general-information/api-key.md).
schemes:
- name: apiKeyHeader
  type: apiKey
  in: header
  parameter: X-Api-Key
  description: Kaiko client API key delivered in the X-Api-Key header.
  sources:
  - openapi/kaiko-canton-oracle-api-openapi.yml
  - openapi/kaiko-index-reference-data-api-openapi.yml
  - openapi/kaiko-indices-api-openapi.yml
  - openapi/kaiko-supply-api-openapi.yml