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Active✓ In official registry

io.github.cyanheads/pubchem-mcp-server

Search PubChem compounds, properties, safety data, bioactivity, and cross-refere

GitHub ↗npm ↗registry ↗
74
TrustScore
✅ Actively maintained, production-ready

Before you connect

✓ No extra key neededDocker

Config example (to connect)

{
  "mcpServers": {
    "pubchem-mcp-server": {
      "type": "streamable-http",
      "url": "https://pubchem.caseyjhand.com/mcp"
    }
  }
}

Install / Connect

claude mcp add pubchem-mcp-server -- npx -y @cyanheads/pubchem-mcp-server

Follow the official README; env and args vary per server.

🛠️ Maintenance weight 30% · 100 pts

📝
Last committoday
📈
Commits in 90 days64
💬
Median issue response2 days
🗃️
Repo statusNormal

📊 Adoption weight 25% · 31 pts

⭐
GitHub stars9
📦
npm weekly downloadsNot npm-distributed
🚀
Releases per month6.3

✅ Usability weight 20% · 100 pts

📋
Official registryListed
▶️
Runnable entryResolvable (npx/remote)
🔍
AuditabilityOpen-source repo, auditable

❤️ Health & community weight 25% · 54 pts

🐛
open issues2
🔀
open PRs—
⚖️
LicenseApache-2.0
👥
Contributors / forks1 / 3

Sources: GitHub API · npm registry · Official registry · updated 2026-07-28

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