Bmll Technologies Authentication

generated: '2026-07-22'
method: searched
source: bmll Python SDK 1.24.7 source (bmll/_rest.py), https://pypi.org/project/bmll/
docs: https://pypi.org/project/bmll/
summary:
  types: [key-pair-jwt, bearer, apiKey]
  api_key_in: [header]
  oauth2_flows: []
  self_serve: false
  note: No OAuth2/OIDC. Access is sales-led with per-account entitlements; no
    public signup or self-serve API keys.
model: |
  Authentication is key-pair based. A user registers at
  https://data.bmlltech.com (sales-provisioned) and generates an SSH-style
  key-pair. The SDK signs a JWT with the PEM private key and exchanges it in a
  two-step handshake with the auth service, then sends the resulting token as
  a Bearer header on every data-plane request (plus an x-api-key header for
  Data Lab flows).
schemes:
- name: key-pair-jwt
  type: custom
  description: Two-step handshake against the auth service. Step 1 POST
    /auth/identity with {iss = username} returns a session id (sid). Step 2
    sends signed-JWT claims {iss = username, aud, exp (24h), sid} — signed with
    the user's PEM private key (optionally passphrase-protected) — to obtain a
    bearer token. Audience is "dd-services" for the data-plane auth service and
    "lab-services" for the Data Lab lab-auth service.
  credentials:
    username: BMLL_USERNAME env var (api username / email; may also be read from
      the public key comment field)
    private_key: BMLL_KEY_PATH env var (path to PEM private key; public key must
      sit next to it as .pub)
    passphrase: BMLL_KEY_PASSPHRASE env var (optional)
  endpoints:
    auth: https://auth.data.bmlltech.com
    lab_auth: https://auth.lab.bmlltech.com
- name: bearer
  type: http
  scheme: bearer
  description: 'The token obtained from the handshake is sent as an
    "Authorization: Bearer <token>" header on all service requests.'
- name: x-api-key
  type: apiKey
  in: header
  parameter: x-api-key
  description: Data Lab (lab-auth) logins additionally fetch an API key from the
    account service (GET /api-key) and send it as the x-api-key header.
headers:
  version: x-bmll-version (SDK version) is sent on every request.
behavior:
  reauth_on_401: The SDK re-logins once on a 401 and retries; a second
    consecutive 401 raises AuthenticationError.
  entitlements: Per-account entitlements gate which datasets/services a token
    can access; quota is inspected at https://data.bmlltech.com/#app/permissions.