# xyz.crossgrain/epitaxy

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

- name: xyz.crossgrain/epitaxy
- version: 0.1.4
- connection class: R0 (autonomous)
- trust: 93/100
- quality: 83/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/xyz.crossgrain%2Fepitaxy
- tools: https://api.protogrid.dev/v1/servers/xyz.crossgrain%2Fepitaxy/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "epitaxy": {
      "type": "http",
      "url": "https://drugs.crossgrain.xyz/v1/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 85
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-100% ~updated-42d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 83/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_data_freshness (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_supplier_exposure (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_drug_shortages (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 477 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: 100 (weight 15)

- pass `deps.known_vulns`: no known advisory in 1 resolved packages
- n/a `deps.mcp_sdk_version`: the official MCP SDK is not in the dependency graph
- pass `deps.resolvable`: epitaxy-mcp@0.1.4 resolved: 1 packages

- tools: 5, about 477 tokens to load them all
- tool set hash: b4cf3f5b699d6b7d93ff56961997bc27
- badge: [![protogrid quality](https://protogrid.dev/badge/xyz.crossgrain/epitaxy.svg)](https://protogrid.dev/servers/xyz.crossgrain/epitaxy)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Dependencies

- pypi epitaxy-mcp@0.1.4: resolved, 0 dependencies

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

- https://drugs.crossgrain.xyz/v1/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

- pypi epitaxy-mcp@0.1.4 secrets: EPITAXY_API_KEY

## Tools (5)

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