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Epitaxy MCP Server

by crossgrain Your server? Claim it
answering

Epitaxy is answering right now. Last checked 14 min ago. It exposes 5 tools. Last commit 8 Sep 2026.

Federal drug shortages and recalls joined to the federal contracts that buy those drugs.

Uptime history 10 days of history · worst day 98%
10 days agonow
100.0%
Uptime 24h
91 of 91 checks
5
Tools
read from the server
443 ms
Response time
average over 24h
0
Stars
last commit 8 Sep 2026

Nothing serious here today

Today is the operative word: we check Epitaxy every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

run in your terminal
claude mcp add epitaxy --transport http https://drugs.crossgrain.xyz/v1/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "epitaxy": {
      "url": "https://drugs.crossgrain.xyz/v1/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.epitaxy]
url = "https://drugs.crossgrain.xyz/v1/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "epitaxy": {
      "url": "https://drugs.crossgrain.xyz/v1/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "epitaxy": {
      "url": "https://drugs.crossgrain.xyz/v1/mcp"
    }
  }
}

This one needs environment variables set before it will start: EPITAXY_API_URL (Base URL of the API. Defaults to https://drugs.crossgrain.xyz), EPITAXY_API_KEY (Optional. Without it the free tier is used: 20 rows, no evidence, no weak matches, data delayed by 24 hours. No signup required.). The author declared them in the registry entry; get the values from the project itself.

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

drug
list_drug_recalls
FDA drug recalls and enforcement reports. Filters: classification (Class I, II, III), company_id, limit.
list_drug_shortages
Current and resolved US drug shortages as reported by the FDA. Each row carries the generic name, the reporting company and its company_id. Filters: status, generic_name, company_id, limit.
data
get_data_freshness
Returns when the data was last activated, how many segments are live, and the state of the last run. Call this first when you need to know whether the data is fresh.
federal
list_federal_drug_contracts
US federal contracts for drugs, product service code 6505, from USAspending. Filters: agency, company_id, limit.
supplier
get_supplier_exposure
The join: a federal contract whose supplier has an FDA shortage or recall. Every row carries company_name, confidence (exact, probable or weak) and match_method. A cross source join is NEVER exact, because FDA and USAspending share no identifier. The claim is: this government supplier has an active FDA shortage or recall. It does NOT claim that this contract delivers that drug. Without a key you get exact and probable matches only, at most 20 rows, without the evidence field.

Endpoints

URLTransportStateLatencyChecked
https://drugs.crossgrain.xyz/v1/mcp streamable-http answering 467 ms 14 min ago

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Epitaxy — questions

Answers built from our own checks of this server.

What can Epitaxy do?
It exposes 5 tools, read directly from the server on our last check. Among them: get_data_freshness, get_supplier_exposure, list_drug_recalls, list_drug_shortages, list_federal_drug_contracts. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Epitaxy working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 443 ms. The bar chart above shows every period we have measured.
How do I connect Epitaxy?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Epitaxy need an API key?
No. Epitaxy completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Epitaxy?
It answers our handshake in 443 ms on average, which is faster than 33% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Epitaxy open source?
Yes — it is published under the MIT licence, written in Python and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.