How do I connect When MCP Server to Claude?

Run `claude mcp add when -- npx -y @whenlabs/when when-mcp` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.

Is When MCP Server free?

The listed licence is MIT. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.

What can When MCP Server do?

When MCP Server documents 14 tools to the agent, including aware, aware_sync, berth. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.

When

Unclaimed

by WhenLabs-org

Six tools. One install. The WhenLabs developer toolkit.

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01 / Choose your client

02 / Before you connect

Authentication is not specified. Check the project instructions before connecting.

Install the runtime required by the project and make it available to your client.

Project instructionsEnvironment variable names (optional)

Use names from the project instructions, separated by commas. Enter names only, never secret values.

03 / Add the configuration

Source: generated from public install instructions

claude mcp add --transport stdio 'when' -- 'npx' '-y' '@whenlabs/when' 'when-mcp'

Run in your terminal after replacing any placeholders.

04 / Check it in your client

Open your client’s MCP settings and confirm the server connects and lists its tools. A copied configuration does not confirm a working connection.

ai-toolsclaude-codeclideveloper-toolsdevexmcpnpm-packagetypescript

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Security profile

Claimed and verified servers get a weekly static scan that shows what the code can reach: external services, environment variables, shell commands, agent configuration folders, plus any dependencies with known advisories. Claim this listing to get one. How the security profile works

14 of 14 tools

Documented tools (14)

From project documentation. A server handshake does not verify each tool’s description or behavior.

aware

Auto-detect stack and generate AI context files (CLAUDE.md, .cursorrules, …)

aware_sync

Detect stack and regenerate AI context files

berth

Detect port conflicts before starting dev servers

berth_check

Scan project for port conflicts

envalid

Validate .env files against a schema

envalid_validate

Validate .env files against schema

stale

Detect documentation drift between docs and code

stale_scan

Detect documentation drift

velocity

Time coding tasks and learn from historical data

velocity_end_task

End timing and record results

velocity_start_task

Start timing a coding task

vow

Scan dependency licenses and validate against policy

vow_scan

Scan licenses and validate against policy

whenlabs_summary

Unified rollup across all five scanners in one call

Tool change history

Compared across complete checks of the same configuration. Tools were listed, not invoked. Input-schema changes are not measured here.

No complete tool checks yet.

FAQ

Questions about When MCP Server

How do I connect When MCP Server to Claude?: Run `claude mcp add when -- npx -y @whenlabs/when when-mcp` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.
Is When MCP Server free?: The listed licence is MIT. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.
What can When MCP Server do?: When MCP Server documents 14 tools to the agent, including aware, aware_sync, berth. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.