What is openfda-mcp-server?

An MCP server that lets an agent search U.S. Food and Drug Administration data about medicines, food, medical devices, and recalls. It can communicate through standard input/output or a web connection.

Use it to look up drug records, food-related data, medical-device information, and product recalls from FDA sources.

It removes the need to manually search FDA data or build a separate connection to the openFDA service. An optional API key can be configured for access.

openfda-mcp-server — Plugin for Claude Code by cyanheads

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/cyanheads/openfda-mcp-server

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/cyanheads/openfda-mcp-server/openfda-mcp-server/github.svg)](https://agentmods.dev/plugins/cyanheads/openfda-mcp-server/openfda-mcp-server)

Your own site

<a href="https://agentmods.dev/plugins/cyanheads/openfda-mcp-server/openfda-mcp-server"><img src="https://agentmods.dev/badge/plugins/cyanheads/openfda-mcp-server/openfda-mcp-server/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/cyanheads/openfda-mcp-server/openfda-mcp-server"><img src="https://agentmods.dev/badge/plugins/cyanheads/openfda-mcp-server/openfda-mcp-server.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 33 skills, 1 MCP server cost 2,497 tokens a session between them.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

openfda-mcp-server scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude-plugin/plugin.json · 35 lines

What it actually says

{
  "$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
  "name": "openfda-mcp-server",
  "version": "0.8.1",
  "description": "Query FDA data on drugs, food, devices, and recalls via openFDA. STDIO or Streamable HTTP.",
  "author": {
    "name": "cyanheads",
    "email": "[email protected]",
    "url": "https://github.com/cyanheads"
  },
  "homepage": "https://github.com/cyanheads/openfda-mcp-server#readme",
  "repository": "https://github.com/cyanheads/openfda-mcp-server",
  "license": "Apache-2.0",
  "keywords": ["mcp", "mcp-server", "model-context-protocol", "openfda", "fda", "drug-safety", "adverse-events"],
  "userConfig": {
    "openfda_api_key": {
      "type": "string",
      "title": "openFDA API key",
      "description": "Optional. Free key from open.fda.gov/apis/authentication raises the daily limit from 1K to 120K requests.",
      "sensitive": true,
      "default": ""
    }
  },
  "mcpServers": {
    "openfda-mcp-server": {
      "command": "npx",
      "args": ["-y", "@cyanheads/openfda-mcp-server"],
      "env": {
        "MCP_TRANSPORT_TYPE": "stdio",
        "OPENFDA_API_KEY": "${user_config.openfda_api_key}"
      }
    }
  }
}

Contents

What it installs

The manifest is a name and a version. 33 skills, 1 MCP server travel with it, and installing the plugin installs all of them — 2,497 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

8d ago Changed 7e126189933c
17d ago Changed bcc6f536f9e2
28d ago Changed d6e1550d12ca
1mo ago Changed · +13 lines 2d99ad4b3c4a
1mo ago First seen · 22 lines scan A 4382f55805f3

Subscribe to this mod's changes

openfda-mcp-server is a plugin published in the GitHub repository cyanheads/openfda-mcp-server (4 stars, last pushed 3d ago), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Research Scientific adverse-events drug-safety fda mcp mcp-server model-context-protocol

openfda-mcp-server

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

What it actually says

What it installs

What this file has done since we first saw it

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