# Appendix > Appendix, an MCP server by appendix.com, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Physician-reviewed medical opinions and prescriptions for AI agents. - Canonical: https://www.anchorterminal.com/tools/appendix - Markdown: https://www.anchorterminal.com/tools/appendix.md (~650 tokens) - Slim: https://www.anchorterminal.com/tools/appendix.min.md (~580 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/tools/appendix.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - Updated: 2026-10-04 # Appendix > Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/ - Kind: MCP server, by appendix.com (https://appendix.com) - Listed because: It's published in the registry under appendix.com, a namespace the registry only gives to whoever proves they control that domain. - What the official MCP registry says: Physician-reviewed medical opinions and prescriptions for AI agents. ## Facts - MCP registry: `com.appendix/appendix` 1.1.0 - Endpoint: https://mcp.appendix.com/mcp (streamable HTTP) - Source: https://github.com/appendixhealth/mcp-server - Website: https://appendix.com - GitHub stars: 2 - Registry entry updated: 2026-06-02 ## Tools - Tools it lists (3, about 611 tokens of context, `tools/list` without credentials over MCP 2025-11-25, checked 2026-10-03 22:14 UTC): - `search_knowledge_base` (read-only): Search Appendix's medical knowledge base for clinical literature, treatment guidelines, and reference material to help the user describe their medical issue - `submit_encounter` (writes): Submit a clinical encounter letter to the Appendix physician team for review. The letter should be in Markdown format following the Appendix letter structure.… - `list_conditions` (read-only): List all conditions and medications available through Appendix - How its tools read to an agent (0 errors, 0 warnings, 1 note, about 611 tokens; rules at https://www.anchorterminal.com/check.md; not part of the score): - note TC24 server: 3 of 3 tools have no outputSchema - JSON: https://www.anchorterminal.com/api/v1/tools/appendix.json - Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming