Zelis Authentication

generated: '2026-07-21'
method: searched
source: https://developer.zelis.com/guides/getting-started-guests
docs: https://developer.zelis.com/guides/getting-started-guests
summary:
  types:
  - oauth2
  - apiKey
  api_key_in:
  - header
  oauth2_flows:
  - clientCredentials
  notes: >-
    Zelis API access requires TWO credentials on every call: an OAuth2 bearer
    token obtained via the client-credentials grant, plus an Azure API
    Management subscription key sent in the Ocp-Apim-Subscription-Key header.
    All requests are HTTPS-only with JSON payloads.
schemes:
- name: oauth2ClientCredentials
  type: oauth2
  flow: clientCredentials
  token_url: https://api.zelis.com/auth/token
  token_ttl_seconds: 3600
  credentials:
    client_id: unique identifier for the API client
    client_secret: client secret, valid for one year, authenticates the API client
    tenant_id: optional exclusive identifier for an organization within Zelis
  source: docs
- name: subscriptionKey
  type: apiKey
  in: header
  parameter_name: Ocp-Apim-Subscription-Key
  description: >-
    Azure API Management subscription key that identifies the calling
    application; issued in the developer portal under Profile > My Account >
    Access Keys.
  source: docs
onboarding:
  steps:
  - Register via the developer-portal signup form (business email required)
  - Confirm email address within 48 hours
  - Zelis team reviews and approves the request
  - Receive a temporary password (expires in 48 hours) and set a new password on first login
  - Retrieve access keys under Profile > My Account > Access Keys
  signup_url: https://devportalsignup.zelis.com/
environments:
- production
- sandbox (where available per product)