> ## Documentation Index
> Fetch the complete documentation index at: https://flashapi.phs.vn/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Service Scope Technical Appendix

> Service scope, operational principles, and technical framework governing PHS OpenAPI

<Card title="Service Scope Technical Appendix" icon="file-contract" href="https://drive.google.com/file/d/19OcXN0ILbKHiuqML9s3a89floZO3ORas/view?usp=drive_link">
  View the full Service Scope Technical Appendix document
</Card>

This appendix defines the **service scope**, **operational principles**, and **technical framework** governing the use of **PHS OpenAPI**.

Detailed API specifications—including available endpoints, request and response schemas, authentication methods, rate limits, error codes, versioning, SDKs, and sample code—are maintained separately in the **PHS API Documentation** and may be updated by PHS from time to time.

Developers are responsible for ensuring their applications remain compatible with the latest published API specifications.

<Note>
  In the event of any inconsistency between this appendix and the latest API Documentation, the API Documentation published by PHS shall prevail for all technical implementation details.
</Note>