generated: '2026-07-21'
method: searched
source: https://www.yanyin.tech/company
summary: >-
  Certifications and cross-cutting standards Yanyin Technology publishes on its
  corporate site, plus API-gateway conventions advertised on the Open Platform
  product page.
certifications:
- id: iso-9001
  conforms: true
  evidence: "ISO 9001 quality management certification stated on company page"
- id: iso-27001
  conforms: true
  evidence: "ISO 27001 information security certification stated on company page"
- id: iso-20000
  conforms: true
  evidence: "ISO 20000 IT service management certification stated on company page"
- id: mlps-level-3
  conforms: true
  evidence: "China MLPS (等保) Level 3 information security protection stated on company page"
standards:
- id: oauth2
  conforms: true
  evidence: "Open Platform API gateway advertises OAuth2 client-credentials auth"
- id: idempotency
  conforms: true
  evidence: "API gateway advertises idempotency and retry (幂等与重试)"
- id: webhook-hmac
  conforms: true
  evidence: "Webhook callback management advertises HMAC signing and key rotation"