name: Siemens PLM API Rate Limits
description: >
  Siemens PLM does not publish specific numeric rate limits for its APIs in public documentation.
  Limits are enforced at the subscription and tenant level; enterprise customers should contact
  Siemens support or their account representative for current SLA and throttling details.
url: https://developer.siemens.com/apis.html
limits:
  - api: Teamcenter Product Cost Management REST API
    description: >
      Rate limiting details are not disclosed in public documentation. Access requires
      OAuth 2.0 client credentials with Manage REST-API role permission. Bulk Export
      endpoints require an additional license (PPC10029).
    authentication: OAuth 2.0 (Resource Owner Password, Token Exchange, or TcPCM Session Key)
    notes: No publicly documented rate limits.
  - api: Polarion REST API
    description: >
      Rate limiting details are not disclosed in public documentation. Supports Personal
      Access Token (PAT), Session-based token, JWT, and Teamcenter SSO authentication.
      Every call is individually authenticated; no persistent sessions.
    authentication: PAT, Session Token, JWT, or Teamcenter SSO
    notes: No publicly documented rate limits.
  - api: Insights Hub Industrial IoT API
    description: >
      Part of the Siemens Xcelerator platform. Time series, asset management, and event
      management APIs. Rate limits are enforced per tenant subscription tier but are not
      documented publicly.
    authentication: OAuth 2.0 via Siemens login (uss.login.siemens.com)
    notes: No publicly documented rate limits.
  - api: SiGREEN API
    description: >
      Carbon footprint and sustainability APIs for supply chain emission management.
      Access via Siemens Xcelerator Developer Dashboard.
    authentication: OAuth 2.0 via Developer Dashboard credentials
    notes: No publicly documented rate limits.
  - api: Product Information API
    description: >
      CMMS-focused product information API available by subscription through the
      Siemens Xcelerator Developer Portal. Sandbox access available on request.
    authentication: OAuth 2.0 via Developer Dashboard credentials
    notes: No publicly documented rate limits.
general_notes: >
  Siemens PLM API rate limits and quotas are governed by individual enterprise subscription
  agreements and are not published in public documentation. Contact developer.siemens.com
  support or your Siemens account team for tenant-specific throttling policies.