specification: API Commons Rate Limits
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/RateLimits
provider: Varian Medical Systems
providerId: varian-medical-systems
created: '2026-05-04'
# Provenance stamped 2026-08-11: this artifact was written by the API Evangelist
# bulk sweep dated 2026-05-04, not harvested from the provider. See roadmap#35.
method: generated
modified: '2026-05-05'
reconciled: false
tags:
  - Healthcare
  - Oncology
  - Medical Devices
  - Rate Limiting
description: Varian does not publish public API rate limits. Throughput and concurrency are governed by the Developer Program agreement and the on-premises Aria/Eclipse deployment characteristics at the customer site.
sources:
  - https://cancercare.siemens-healthineers.com/
notes: No public rate-limit documentation. Limits are governed by site-specific deployment characteristics and the Developer Program contract; consumers must obtain operational specifics from the customer's Varian contact.
responseCodes:
  throttled: 429
limits:
  - name: Customer-Site / Partner-Contracted Limit
    scope: account
    metric: varies
    limit: see customer/site agreement
policies:
  - name: Site-Specific Deployment
    description: Varian Aria/Eclipse APIs run inside customer hospital networks; throughput depends on the on-prem hardware and the integration partner agreement, not a SaaS rate limit.
  - name: Developer Program Governs
    description: Operational guarantees, error handling expectations, and supported call patterns are defined in the Varian Developer Program documentation provided to approved partners.
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com