MCP.Market

Appendix MCP server

online · 100% uptime
by appendix.com·com.appendix/appendix·v1.1.0·2 stars
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Physician-reviewed medical opinions and prescriptions for AI agents.

B79/100grade B
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Safety scan
B79/100

full report

Adoption
Growing

2 stars

Reviews

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Appendix tools (3, 1 write)

write = sends, deletes, buys or posts
  • list_conditionsFree

    List all conditions and medications available through Appendix

  • search_knowledge_baseFree

    Search Appendix's medical knowledge base for clinical literature, treatment guidelines, and reference material to help the user describe their medical issue

  • submit_encounterwrite actionFree

    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 and provide clinical guidance and a prescription if appropriate.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 853ms20/20
  • Tool poisoning3 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 17 days ago15/15
  • Maintainer identitynamespace and repository owner differ; website matches verified namespace6/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 79/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Appendix compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
79/100
higher than 58% of 48,255 servers
Tools
3
the typical server has 7
Tools that change things
33%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
519 ms
faster than 28% of 30,031 servers
GitHub stars
2
more than 75% of 28,688 servers

What its tools let an agent do: 2 read · 1 change

Install Appendix in Claude Code, Cursor or VS Code

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

What the publisher says

From the Appendix repository's README, as published. We do not edit it. Read it on GitHub

Appendix MCP Server

Appendix turns any AI health conversation into a physician-reviewed opinion, with a prescription if you need one.

Your agent writes a medical encounter summary, submits it through our API, and a real doctor signs off.

Use the Appendix MCP server to search medical literature, submit clinical encounters, and receive clinical guidance and prescriptions from board-certified physicians. Learn more at appendix.com.

Installation

Claude Code

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

Claude Desktop / Claude Web Connectors

Add to your Claude Desktop config (claudedesktopconfig.json) or Claude.ai custom-connector form:

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

Other clients

The server speaks Streamable HTTP only — the current MCP spec transport (2025-03-26).

Available Tools

Development

npm install
npm run build
npm start

Watch mode:

npm run dev

Environment Variables

Endpoints

Nothing above is checked by us. What we check is on the safety report.

Appendix: common questions

Is Appendix MCP server safe?
Mostly: it is graded B (79/100). Read the Appendix safety report
How do I install Appendix?
It runs remotely at mcp.appendix.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Appendix need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Appendix maintained?
The last commit was 55 days ago (2026-09-10). The latest release is v1.1.0.
Is Appendix up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Appendix compare with other MCP servers?
safety score 79/100 (higher than 58% of 48,255 servers); tools 3 (the typical server has 7); tools that change things 33% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.