Bloomberg · Authentication Profile

Bloomberg Authentication

Authentication

Bloomberg secures its APIs with session-identity, oauth2, and openIdConnect across 3 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the authorizationCode and refreshToken flow(s).

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Methods: session-identity, oauth2, openIdConnect Schemes: 3 OAuth flows: authorizationCode, refreshToken API key in:

Security Schemes

DesktopAPISession session-identity

ServerApiAuthorization session-identity

BloombergOAuth oauth2

· flows: authorizationCode

Source

Authentication Profile

generated: '2026-06-20'
method: searched
source: https://bloomberg.github.io/blpapi-docs/ (BLPAPI Core Developer/User Guides, SDK AuthOptions/AuthUser/Identity) + https://www.bloomberg.com/.well-known/oauth-authorization-server
docs: https://bloomberg.github.io/blpapi-docs/
notes: >-
  The BLPAPI OpenAPI projections in this repo declare no HTTP securitySchemes because BLPAPI is a
  socket/SDK API — authentication is session- and identity-based, not header-based. The derive pass
  (derive-authentication.py) therefore found 0 schemes; this profile is searched from the SDK docs
  and Bloomberg's published OAuth discovery metadata.
summary:
  types: [session-identity, oauth2, openIdConnect]
  oauth2_flows: [authorizationCode, refreshToken]
schemes:
  - name: DesktopAPISession
    type: session-identity
    description: >-
      Desktop API — the BLPAPI SDK connects to localhost:8194 and inherits the identity of the
      logged-in Bloomberg Professional (Terminal) user. No separate credentials are exchanged.
    sources: [openapi/bloomberg-reference-data-api-openapi.yml]
  - name: ServerApiAuthorization
    type: session-identity
    description: >-
      Server API (SAPI) / B-PIPE — applications authorize users and applications through the
      //blp/apiauth service (AuthorizationRequest), producing Identity objects attached to requests
      and subscriptions. The SDK models this as AuthOptions / AuthUser / Identity (see the Python SDK
      reference). Entitlements (EIDs) gate which data an identity may receive.
    docs: https://bloomberg.github.io/blpapi-docs/python/3.26.6/
  - name: BloombergOAuth
    type: oauth2
    description: >-
      OAuth 2.0 / OIDC for Bloomberg web login and HTTP-delivered services — RFC 8414 metadata
      published at www.bloomberg.com/.well-known/oauth-authorization-server; authorization and token
      endpoints on login.bloomberg.com; authorization_code + refresh_token grants with PKCE (S256);
      scopes openid, user, entitlements. See scopes/bloomberg-scopes.yml.
    flows:
      - flow: authorizationCode
        authorizationUrl: https://login.bloomberg.com/api/oauth/authorize
        tokenUrl: https://login.bloomberg.com/api/oauth/token
    sources: [well-known/bloomberg-oauth-authorization-server.json]

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