Purchaser · Authentication Profile

Purchaser Authentication

Authentication

Authentication profile for the Purchaser sourcing API, captured from the public API & Integrations overview. Full authentication guides are available to Purchaser customers behind login.

Purchaser declares 2 security scheme(s) across its OpenAPI definitions.

CompanyAiProcurementSourcingRFQSupply ChainConstructionEnterprise

Methods: Schemes: 2 OAuth flows: API key in:

Security Schemes

apiKey

· in: header ()

openIdConnect

Source

Authentication Profile

generated: '2026-07-20'
method: searched
source: https://purchaser.ai/api-and-integrations (public API & Integrations overview)
docs: https://docs.purchaser.ai
name: Purchaser API Authentication
description: >-
  Authentication profile for the Purchaser sourcing API, captured from the
  public API & Integrations overview. Full authentication guides are available
  to Purchaser customers behind login.
schemes:
  - id: api_key
    type: apiKey
    in: header
    description: >-
      API-key based authentication. Keys carry team and environment scoping and
      can be rotated without downtime.
    rotation: supported
    scoping:
      - team
      - environment
  - id: sso
    type: openIdConnect
    description: >-
      Single sign-on (SSO) with role-based access control governs the Purchaser
      application; used for human access rather than programmatic API calls.
    applies_to: application-ui
notes: >-
  OAuth2 scopes are not documented on the public overview. Programmatic access
  uses API keys; SSO/RBAC secures the web application.