# xyz.crossgrain/epitaxy (pypi · epitaxy-mcp)

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

- Trust score: 72/100 (medium)
- Change this week: +6
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `drugs.crossgrain.xyz`: 66/100, [markdown](https://verifymcp.io/servers/xyz-crossgrain-epitaxy/v1-mcp.md), [page](https://verifymcp.io/servers/xyz-crossgrain-epitaxy/v1-mcp)
- pypi · `epitaxy-mcp`: 72/100 (this document), [markdown](https://verifymcp.io/servers/xyz-crossgrain-epitaxy/epitaxy-mcp.md), [page](https://verifymcp.io/servers/xyz-crossgrain-epitaxy/epitaxy-mcp)

## Channel facts

- Registry: `pypi`
- Package: `epitaxy-mcp`
- Version: `0.1.4`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-20.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs setuptools.build_meta at install time, a recognised native-build step with no shell scripting around it.
  - No production dependencies, so there is no dependency health to assess.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 11 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 72/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 439 tokens (~87/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 40/100
  - Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 74/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 21% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the xyz.crossgrain/epitaxy MCP server?

xyz.crossgrain/epitaxy runs locally as a PyPI package, launched with uvx epitaxy-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add xyz-crossgrain-epitaxy -- uvx epitaxy-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "xyz-crossgrain-epitaxy": {
      "command": "uvx",
      "args": [
        "epitaxy-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "xyz-crossgrain-epitaxy": {
      "command": "uvx",
      "args": [
        "epitaxy-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add xyz-crossgrain-epitaxy -- uvx epitaxy-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "xyz-crossgrain-epitaxy": {
      "type": "local",
      "command": [
        "uvx",
        "epitaxy-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add xyz-crossgrain-epitaxy --command uvx --arg epitaxy-mcp
```

### Hermes

```yaml
mcp_servers:
  xyz-crossgrain-epitaxy:
    command: "uvx"
    args: ["epitaxy-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "xyz-crossgrain-epitaxy": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "epitaxy-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add xyz-crossgrain-epitaxy -t stdio -c uvx -a epitaxy-mcp
```

### Other

```json
{
  "mcpServers": {
    "xyz-crossgrain-epitaxy": {
      "command": "uvx",
      "args": [
        "epitaxy-mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-20 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 70, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-09-15 (score 66, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-09-14 (score 51, −15)

- [security regression] Malware scan: pass → unverified

### 2026-09-09 (score 66, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-09-08 (score 51)

First indexed and scored.

## MCP tools (5)

### `get_data_freshness` (~47 tokens)

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.

### `list_drug_shortages` (~86 tokens)

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.

Input parameters:

- `company_id` (string)
- `generic_name` (string)
- `limit` (integer)
- `status` (string): for example Current or Resolved

### `list_drug_recalls` (~56 tokens)

FDA drug recalls and enforcement reports. Filters: classification (Class I, II, III), company_id, limit.

Input parameters:

- `classification` (string)
- `company_id` (string)
- `limit` (integer)

### `list_federal_drug_contracts` (~62 tokens)

US federal contracts for drugs, product service code 6505, from USAspending. Filters: agency, company_id, limit.

Input parameters:

- `agency` (string)
- `company_id` (string)
- `limit` (integer)

### `get_supplier_exposure` (~149 tokens)

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.

Input parameters:

- `award_id` (string): federal award identifier
- `company_id` (string)
- `limit` (integer)
- `min_confidence` (string): weak needs a paid key

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/xyz-crossgrain-epitaxy/epitaxy-mcp#diagnostics

## Score history

- 2026-09-20: 72
- 2026-09-19: 71
- 2026-09-18: 71
- 2026-09-17: 70
- 2026-09-16: 70
- 2026-09-15: 66
- 2026-09-14: 51
- 2026-09-13: 66
- 2026-09-12: 66
- 2026-09-11: 66
- 2026-09-10: 66
- 2026-09-09: 66
- 2026-09-08: 51

## Common questions

### What is the xyz.crossgrain/epitaxy MCP server?

xyz.crossgrain/epitaxy is an MCP server listed in the public MCP registry as xyz.crossgrain/epitaxy. Federal drug shortages and recalls joined to the federal contracts that buy those drugs. This page covers its PyPI package (epitaxy-mcp).

### Is the xyz.crossgrain/epitaxy MCP server safe to use?

xyz.crossgrain/epitaxy scores 72 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the xyz.crossgrain/epitaxy MCP server expose?

xyz.crossgrain/epitaxy exposes 5 tools: get_data_freshness, list_drug_shortages, list_drug_recalls, list_federal_drug_contracts, get_supplier_exposure. Their descriptions and schemas cost roughly 400 tokens of context every time the server is loaded.

### Is the xyz.crossgrain/epitaxy MCP server still maintained?

xyz.crossgrain/epitaxy is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the xyz.crossgrain/epitaxy MCP server under?

xyz.crossgrain/epitaxy declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- PyPI project: https://pypi.org/project/epitaxy-mcp/
- Socket report: https://socket.dev/pypi/package/epitaxy-mcp
- Repository: https://github.com/vor-bot/epitaxy-mcp
- Website: https://drugs.crossgrain.xyz/docs
- Changelog RSS feed: https://verifymcp.io/servers/xyz-crossgrain-epitaxy/epitaxy-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/xyz-crossgrain-epitaxy/epitaxy-mcp.json
- HTML version of this page: https://verifymcp.io/servers/xyz-crossgrain-epitaxy/epitaxy-mcp