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io.github.scottmreed/ChemCP

NPM · CHEMCP · SCANNED AUG 3

MCP App that renders 2D molecular structures from SMILES using RDKit.js

Available components

npm · chemcp 71
+18 this week 71 Trust /100
Trust breakdown (6 categories)

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. How we score →

Supply Chain Security87
  • No malware found by supply-chain analysis.Pass
  • Only part of the dependency tree could be resolved (96 of 97), so this covers what we could see, not the whole tree.Partial
  • No install/post-install scripts declared.Pass
  • Only part of the dependency tree could be resolved (96 of 97), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency45
Schema Quality & AI Usability85
  • 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
  • AI-judged instruction clarity (excellent).Pass
  • Tool/resource definitions use about 148 tokens (~74/item across 2 items; 1 tools + 1 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
  • Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
  • Supports UI / widget rendering.Pass
Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

npm · chemcp

# add to Claude Code
claude mcp add scottmreed-chemcp -- npx -y chemcp
# add to Codex CLI
codex mcp add scottmreed-chemcp -- npx -y chemcp
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "scottmreed-chemcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "chemcp"
      ],
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add scottmreed-chemcp --command npx --arg -y --arg chemcp
# ~/.hermes/config.yaml
mcp_servers:
  scottmreed-chemcp:
    command: "npx"
    args: ["-y", "chemcp"]
// mcp.json
{
  "mcpServers": {
    "scottmreed-chemcp": {
      "command": "npx",
      "args": [
        "-y",
        "chemcp"
      ]
    }
  }
}
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 3 Aug 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

  • 2 Aug 26 +44
    • Provenance: unverified → fail ▼ security
    • Known CVEs: unverified → partial ▲ security
    • Install scripts: unverified → pass ▲ security
    • Malware scan: unverified → pass ▲ security
    • Security disclosure: fail → unverified ▼ functional
    • Tool coverage: 100 → unverified ▼ functional
    • Schema quality: 100 → unverified ▼ functional
    • Schema quality: unverified → excellent ▲ functional
    • License: unverified → pass ▲ functional
    • Dependency health: unverified → partial ▲ functional
    • Stability: unverified → 0.20 ▲ functional
    • Maintenance: unverified → pass ▲ functional
    • MCP protocol: unverified → pass ▲ functional
    • First check of Capabilities: pass functional
    • Licence: ISC functional
  • 31 Jul 26 −9
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 30 Jul 26 −18
    • Malware scan: pass → unverified ▼ security
  • 27 Jul 26 53

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Analysed npm/[email protected]

Provenance none

Ecosystem: npm · Outcome: none

Dependencies 96 packages

96 packages in the resolved dependency tree · 96 deprecated · 29 stale.

The dependency tree was only partially resolved, so these counts may be incomplete.

MCP tools — 1 exposed · ~131 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens
render_molecule ~131

Renders an interactive 2D structure diagram of a molecule from its SMILES notation. Displays the molecule image along with computed molecular properties (molecular weight, LogP, H-bond donors/acceptors, TPSA, etc.). Use this whenever a user asks to see, visualize, draw, or display a chemical structure.

NameTypeReqDescription
smilesstringyesSMILES notation of the molecule (e.g. 'CCO' for ethanol, 'c1ccccc1' for benzene, 'CC(=O)Oc1ccccc1C(=O)O' for aspirin)

No output schema declared.

No examples provided.