# Catnap (npm · @pipeworx/mcp-catnap)

CATNAP (Compile, Analyze, and Tally Neutralizing Antibody Panels) + the LANL HIV Molecular…

- Trust score: 82/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `gateway.pipeworx.io`: 70/100, [markdown](https://verifymcp.io/servers/pipeworx-io-catnap/catnap-mcp.md), [page](https://verifymcp.io/servers/pipeworx-io-catnap/catnap-mcp)
- npm · `@pipeworx/mcp-catnap`: 82/100 (this document), [markdown](https://verifymcp.io/servers/pipeworx-io-catnap/pipeworx-mcp-catnap.md), [page](https://verifymcp.io/servers/pipeworx-io-catnap/pipeworx-mcp-catnap)

## Channel facts

- Registry: `npm`
- Package: `@pipeworx/mcp-catnap`
- Version: `0.2.1`
- 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 2026-11-05.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - No production dependencies, so there is no dependency health to assess.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-catnap).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 5 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 63/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 821 tokens (~273/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% 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 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Catnap MCP server?

Catnap runs locally as an npm package, launched with npx -y @pipeworx/mcp-catnap. 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 pipeworx-io-catnap -- npx -y @pipeworx/mcp-catnap
```

### Cursor

```json
{
  "mcpServers": {
    "pipeworx-io-catnap": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-catnap"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "pipeworx-io-catnap": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-catnap"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add pipeworx-io-catnap -- npx -y @pipeworx/mcp-catnap
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "pipeworx-io-catnap": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@pipeworx/mcp-catnap"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add pipeworx-io-catnap --command npx --arg -y --arg @pipeworx/mcp-catnap
```

### Hermes

```yaml
mcp_servers:
  pipeworx-io-catnap:
    command: "npx"
    args: ["-y", "@pipeworx/mcp-catnap"]
```

### Netclaw

```json
{
  "McpServers": {
    "pipeworx-io-catnap": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@pipeworx/mcp-catnap"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add pipeworx-io-catnap -t stdio -c npx -a -y @pipeworx/mcp-catnap
```

### Other

```json
{
  "mcpServers": {
    "pipeworx-io-catnap": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-catnap"
      ]
    }
  }
}
```

## 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.

### 2026-11-05 (score 82, 0)

- [functional regression] Security disclosure: fail → unverified

### 2026-11-04 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 80, +15)

- [security improvement] Malware scan: unverified → pass
- [functional regression] Security disclosure: unverified → fail

### 2026-10-31 (score 65, −14)

- [security regression] Malware scan: pass → unverified
- [functional regression] Security disclosure: fail → unverified
- [functional] Package version: 0.2.0 → 0.2.1

### 2026-10-29 (score 79)

First indexed and scored.

## MCP tools (3)

### `catnap_search_neutralization` (~232 tokens)

HIV broadly neutralizing antibody POTENCY: IC50/IC80/ID50 measurements for an antibody across viral strains, or for a strain across antibodies, from LANL CATNAP. Answers "how potent is VRC01 against this strain", "which antibodies neutralize CNE8", "compare this antibody's panel across subtypes". Every value carries its assay citation and PubMed id. A value like ">10" is a BOUND the assay could not resolve past: it is returned with numeric_value null and censored true, never as the number 10. Pass antibody, virus, or both. For where an immune response BINDS rather than how strongly it neutralizes, use immunology_search.

Input parameters:

- `antibody` (string): Antibody name, substring match, e.g. "VRC01", "10-1074", "PGT121".
- `limit` (number): Maximum measurements to return (default 50, max 500).
- `virus` (string): Virus/strain name, substring match, e.g. "CNE8", "BG505".

### `catnap_antibody_info` (~171 tokens)

Metadata for an HIV antibody in LANL CATNAP: which region of the virus it binds (CD4 binding site, V3 glycan, MPER, …), its aliases, the paper that isolated it with PubMed id, light chain type, ADCC activity, and its mean panel IC50 with the number of viruses tested. Answers "what does PGT121 bind", "who isolated 10-1074", "how broad is this antibody's panel". For the per-strain measurements behind that panel, use catnap_search_neutralization.

Input parameters:

- `limit` (number): Maximum antibodies to return (default 10, max 50).
- `name` (string, required): Antibody name or alias, substring match, e.g. "VRC01", "PGT121".

### `immunology_search` (~366 tokens)

Search the LANL HIV Molecular Immunology Database for T-cell epitopes (CTL/CD8+ or T-helper/CD4+) or antibody binding sites — a different question from catnap_search_neutralization: this is about WHERE on the virus an immune response targets and WHICH HLA restricts it, not how potently an antibody neutralizes. Answers "what CTL epitopes are in HIV Gag", "which antibodies bind the CD4 binding site", "what HLA restricts this epitope", "find epitopes at position 296-331 of Env". Queried LIVE against LANL's own keyless JSON API (no ingest — always current). table selects which of the three response types you get: ctl (CD8+ T-cell), helper (CD4+ T-cell), or ab (antibody binding sites). At least one of mab_name, epitope, protein_name is required. Returns citation, keywords, HXB2 coordinates and (for ab) binding region/neutralizing classification for each match.

Input parameters:

- `epitope` (string): Epitope amino acid sequence, e.g. "GGKKKYKLK". Matches if this sequence is contained in the epitope.
- `limit` (number): Maximum records to return (default 20, max 100) — applied client-side after the upstream call.
- `mab_name` (string): Antibody name or alias. "ab" table only.
- `protein_name` (string): HIV protein name, e.g. "Gag", "Env", "Nef".
- `table` (string, required): "ctl" = CD8+ T-cell epitopes, "helper" = CD4+ T-cell epitopes, "ab" = antibody binding sites.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/pipeworx-io-catnap/pipeworx-mcp-catnap#diagnostics

## Score history

- 2026-11-05: 82
- 2026-11-04: 82
- 2026-11-03: 81
- 2026-11-02: 81
- 2026-11-01: 80
- 2026-10-31: 65
- 2026-10-30: 79
- 2026-10-29: 79

## Common questions

### What is the Catnap MCP server?

Catnap is an MCP server listed in the public MCP registry as io.github.pipeworx-io/catnap. CATNAP (Compile, Analyze, and Tally Neutralizing Antibody Panels) + the LANL HIV Molecular… This page covers its npm package (@pipeworx/mcp-catnap).

### Is the Catnap MCP server safe to use?

Catnap scores 82 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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 Catnap MCP server expose?

Catnap exposes 3 tools: catnap_search_neutralization, catnap_antibody_info, immunology_search. Their descriptions and schemas cost roughly 769 tokens of context every time the server is loaded.

### Is the Catnap MCP server still maintained?

Catnap is still listed as active in the MCP registry. We last reached this channel on 5 November 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 Catnap MCP server under?

Catnap 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

- npm package: https://www.npmjs.com/package/@pipeworx/mcp-catnap
- Socket report: https://socket.dev/npm/package/@pipeworx/mcp-catnap
- Repository: https://github.com/pipeworx-io/mcp-catnap
- Website: https://pipeworx.io/packs/catnap
- Changelog RSS feed: https://verifymcp.io/servers/pipeworx-io-catnap/pipeworx-mcp-catnap.xml
- Changelog JSON feed: https://verifymcp.io/servers/pipeworx-io-catnap/pipeworx-mcp-catnap.json
- HTML version of this page: https://verifymcp.io/servers/pipeworx-io-catnap/pipeworx-mcp-catnap