MCP server

Appendix Official

com.appendix/appendix

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Physician-reviewed medical opinions and prescriptions for AI agents.

Working at last checkVerified publisher: appendix.comAbout 540 tokens per request once connected3 tools

https://mcp.appendix.com/mcp

At a glance

Type: MCP server
Publisher: appendix.com (verified by the MCP Registry)
Status: Working at last check
Tools: 3
Token cost: About 540 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http appendix https://mcp.appendix.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.appendix]
url = "https://mcp.appendix.com/mcp"

Gemini CLI

{"mcpServers":{"appendix":{"httpUrl":"https://mcp.appendix.com/mcp"}}}

Cursor

{"mcpServers":{"appendix":{"url":"https://mcp.appendix.com/mcp"}}}

VS Code

{"servers":{"appendix":{"type":"http","url":"https://mcp.appendix.com/mcp"}}}

Antigravity

agy mcp add appendix https://mcp.appendix.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"appendix","server_url":"https://mcp.appendix.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"appendix","server_url":"https://mcp.appendix.com/mcp"}

list_conditions ~90 tokens
List all conditions and medications available through Appendix
search_knowledge_base ~152 tokens
Search Appendix's medical knowledge base for clinical literature, treatment guidelines, and reference material to help the user describe their medical issue
submit_encounter ~298 tokens
Submit a clinical encounter letter to the Appendix physician team for review. The letter should be in Markdown format following the Appendix letter structure. Returns feedback on completeness or a checkout URL when ready. One of our board-certified physicians will personally review the submission an

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