A connection to health and life-sciences sources such as bioRxiv and medRxiv, which publish research papers before formal peer review, along with ClinicalTrials.gov and ChEMBL.

Use it to research preprints, clinical trials, chemical and drug information, and related life-sciences evidence.

It lets the agent search and read information from these sources directly instead of depending only on general training data.

c-trials — MCP server by anthropics/knowledge-work-plugins

About the project

Knowledge Work Plugins is an open-source collection of Claude extensions organized around roles such as productivity, sales, and customer support. Each plugin combines role-specific guidance, connectors, commands, and sub-agents so knowledge workers can use Claude with their team’s tools and processes. The catalogue entries are examples of, or workflows from, this plugin collection.

anthropics/knowledge-work-plugins · 29,887 stars · on GitHub

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/anthropics/knowledge-work-plugins

Made for: Claude Code.

Or install bio-research, the plugin that ships this one along with the rest of its 6 skills, 11 MCP servers.

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/mcp/anthropics/knowledge-work-plugins/c-trials/github.svg)](https://agentmods.dev/mcp/anthropics/knowledge-work-plugins/c-trials)

Your own site

<a href="https://agentmods.dev/mcp/anthropics/knowledge-work-plugins/c-trials"><img src="https://agentmods.dev/badge/mcp/anthropics/knowledge-work-plugins/c-trials/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/mcp/anthropics/knowledge-work-plugins/c-trials"><img src="https://agentmods.dev/badge/mcp/anthropics/knowledge-work-plugins/c-trials.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 Not applicable: nothing here is loaded into a session.

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

c-trials 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 1mo 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

c-trials — 100% identical, 0 lines differ

bio-research/.mcp.json · 6 lines

What it actually says

{
  "c-trials": {
    "type": "http",
    "url": "https://hcls.mcp.claude.com/clinical_trials/mcp"
  }
}

Same file

What else `.mcp.json` configures

This page is one entry in a file that holds 11. Installing the file brings all of them; each is measured and scanned on its own page.

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.

1mo ago First seen · 6 lines scan A ee41095f1319

Subscribe to this mod's changes

c-trials is an MCP server published in the GitHub repository anthropics/knowledge-work-plugins (29,887 stars, last pushed yesterday), licensed Apache-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. 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 2026-08-30.

Research Scientific

c-trials

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

Copies of this mod

What it actually says

What else `.mcp.json` configures

What this file has done since we first saw it

Other mcp servers, from other repositories

health-system-profiler

clinical-trials-ai-mcp

outdooriq-mcp

mcp-airq

mcp-sympy

weather-mcp-agent

c-trials

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

Copies of this mod

What it actually says

What else .mcp.json configures

What this file has done since we first saw it

Other mcp servers, from other repositories

health-system-profiler

clinical-trials-ai-mcp

outdooriq-mcp

mcp-airq

mcp-sympy

weather-mcp-agent

What else `.mcp.json` configures