Step 1
Install in your client
Config is the same across clients — only the file and path differ.
CD
Supported in Claude Desktopstdio · Node 18+
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"whenlabs": {
"args": [
"@whenlabs/when",
"when-mcp"
],
"command": "npx"
}
}
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Read me
What io.github.WhenLabs-org/when does
A single installable toolkit that brings six WhenLabs developer tools into your Claude Code workflow. After install, the tools are exposed over a single MCP server and Claude calls them automatically when relevant.
Test This Server
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
npx -y '@whenlabs/when' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
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Scored, not listed
Why this score
Five weighted categories — click any category to see the underlying evidence.
Score breakdown
87/100across 5 weighted dimensions
0255075100
30
12
20
15
10
−13
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
Checked @whenlabs/when against OSV.dev.
Inventory
Tools (8)
Click any tool to inspect its schema.
~323 tokens total
Community
Reviews
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Frequently Asked Questions
- Is io.github.WhenLabs-org/when safe to use?
- io.github.WhenLabs-org/when has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
- How do I install io.github.WhenLabs-org/when?
- io.github.WhenLabs-org/when supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
- What can io.github.WhenLabs-org/when do?
- io.github.WhenLabs-org/when provides 8 tools: aware_sync, berth_check, envalid_validate, stale_scan, vow_scan and 3 more. See the full tools list on the server page for descriptions and parameters.
- What AI clients work with io.github.WhenLabs-org/when?
- io.github.WhenLabs-org/when is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
- Is io.github.WhenLabs-org/when actively maintained?
- io.github.WhenLabs-org/when is actively maintained — last commit was 2 days ago. It has 2 GitHub stars.
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Community
Discussion
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