Classic · Authentication Profile

Classic Authentication

Authentication

Classic secures its APIs with siwe and http-bearer-jwt across 3 declared security schemes, as derived from its OpenAPI definitions.

CompanyCryptoCryptocurrencyDEX AggregatorSwapsBlockchainWalletSelf-Custody
Methods: siwe, http-bearer-jwt Schemes: 3 OAuth flows: API key in:

Security Schemes

SIWE siwe
bearerAuth http
scheme: bearer
X-Partner-Code apiKey
· in: header (X-Partner-Code)

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-18'
method: searched
source: https://api.shapeshift.com/docs
notes: >-
  The ShapeShift Public API does not declare securitySchemes in its OpenAPI, but
  authentication is documented through its Auth operations: Sign-In With Ethereum
  (SIWE, EIP-4361). A client fetches a nonce (siweNonce), the wallet signs the
  SIWE message, and siweVerify returns a JWT bearer token used on authenticated
  endpoints (affiliate create/update). Read endpoints (assets, chains, swap
  quotes/rates/status) are public. Swap and affiliate endpoints also accept an
  X-Partner-Code header for partner/affiliate attribution (not authentication).
summary:
  types: [siwe, http-bearer-jwt]
  public_endpoints: true
  api_key_in: []
  oauth2_flows: []
schemes:
  - name: SIWE
    type: siwe
    standard: EIP-4361 (Sign-In With Ethereum)
    flow:
      - "POST /v1/auth/siwe/nonce (siweNonce) -> nonce"
      - "Wallet signs the SIWE message containing the nonce"
      - "POST /v1/auth/siwe/verify (siweVerify) -> { token (JWT), address }"
    sources: [openapi/classic-shapeshift-openapi-original.json]
  - name: bearerAuth
    type: http
    scheme: bearer
    bearerFormat: JWT
    description: JWT returned by siweVerify, sent as Authorization Bearer on authenticated affiliate operations (401/403 on failure).
    applies_to: [createAffiliate, updateAffiliate]
    sources: [openapi/classic-shapeshift-openapi-original.json]
  - name: X-Partner-Code
    type: apiKey
    in: header
    parameter: X-Partner-Code
    role: attribution
    description: Partner/affiliate code passed on swap endpoints for attribution; not an authentication credential.
    applies_to: [getSwapQuote, getSwapRates, getSwapStatus]
    sources: [openapi/classic-shapeshift-openapi-original.json]