OPDSTAR NHI MCP — Terms of Service

Effective: 2026-05-13 · Applies to the /api/mcp remote MCP endpoint and the @opdstar/nhi-mcp npm package.

The OPDSTAR Taiwan NHI MCP server provides public, read-only reference data for AI agents and developers building tools that need authoritative Taiwan National Health Insurance information. By calling the endpoint or installing the package, you agree to these terms.

1. Service description

The service exposes Taiwan NHI reference data via the Model Context Protocol (MCP) over JSON-RPC 2.0. Tools include lookup of rejection codes, audit clauses, drug payment rules, fee schedule entries, special materials, appeal-case precedents, ICD-10 codes, and Taiwan drugs.

2. Acceptable use

You may:

• Call the endpoint from AI agents, applications, and tools you build for clinical billing, audit, appeal-drafting, and decision-support workflows.
• Cache returned data subject to the Cache-Control headers we send.
• Build commercial products that use the MCP server, provided the resulting product fairly attributes the source data to 健保署 where appropriate and to OPDSTAR for the curation layer.

You may not:

• Use the endpoint to send patient-identifiable data — see the Privacy Policy.
• Attempt to access write surfaces, administrative endpoints, or non-MCP routes — there are none.
• Issue automated traffic that materially degrades service availability for other callers. We may rate-limit, deny, or block abusive clients.
• Resell the raw data as a standalone dataset or publish a reconstituted database that competes with the original 健保署 dataset surface.
• Misrepresent the provenance of returned data (e.g. claim the data is original to your product).

3. Reference-only positioning

The MCP server is a translation, lookup, and reference tool. It is not a medical device, a clinical decision-support system (CDS), or a billing-submission tool. It does not:

• Diagnose patients
• Prescribe medications
• Submit claims to NHI
• Guarantee that any specific claim will be reimbursed or that any appeal will succeed

Outputs phrased as suggestions, warnings, or examples are reference material. The treating physician is solely responsible for clinical, coding, and submission decisions.

4. Accuracy and freshness

We refresh the reference dataset against 健保署 announcements on an ongoing basis. Despite reasonable effort, the data may lag the latest 公告 by hours to weeks. For the latest definitive version of any rule, consult www.nhi.gov.tw directly. The /api/mcp-status endpoint reports the freshness signal for each dataset.

5. Service availability

The service is provided "as is" and "as available" without any service-level commitment. We may change, suspend, throttle, or discontinue the service at any time. Major changes that affect callers will be announced at github.com/tatsuju/opdstar-nhi-mcp.

6. Intellectual property

• The underlying NHI source data is published by 健保署 under Taiwan's open-data and public-information regimes; we don't claim ownership of it.
• The curation layer — schema, cross-references, MCP tool surface, derived analytics, and the npm package source — is licensed under MIT (see the package LICENSE file).
• The OPDSTAR name and logo are trademarks of the OPDSTAR project.

7. Disclaimer and limitation of liability

To the maximum extent permitted by applicable law, the service is provided without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, and non-infringement. OPDSTAR is not liable for any direct, indirect, incidental, consequential, or special damages arising from use of the service, including lost reimbursement, claim denials, or downstream clinical outcomes.

8. Governing law

These terms are governed by the laws of the Republic of China (Taiwan). Disputes that cannot be resolved through good-faith discussion are subject to the exclusive jurisdiction of the Taiwan Taipei District Court (臺灣臺北地方法院).

9. Changes

We may update these terms. Material changes will update the Effective date and be announced at the GitHub repository. Continued use after a change constitutes acceptance.

10. Contact

Questions about these terms: support@opdstar.com.