Which days and times am I free? Reads your calendar feeds and answers with the slots you can offer.
Connect Runs on your machine
claude mcp add when-free -e WHENFREE_CALENDARS=<WHENFREE_CALENDARS> -e WHENFREE_TZ=<WHENFREE_TZ> -- uvx when-free==0.4.1{
"mcpServers": {
"when-free": {
"command": "uvx",
"args": [
"when-free==0.4.1"
],
"env": {
"WHENFREE_CALENDARS": "<WHENFREE_CALENDARS>",
"WHENFREE_TZ": "<WHENFREE_TZ>"
}
}
}
}{
"mcpServers": {
"when-free": {
"command": "uvx",
"args": [
"when-free==0.4.1"
],
"env": {
"WHENFREE_CALENDARS": "<WHENFREE_CALENDARS>",
"WHENFREE_TZ": "<WHENFREE_TZ>"
}
}
}
}{
"servers": {
"when-free": {
"type": "stdio",
"command": "uvx",
"args": [
"when-free==0.4.1"
],
"env": {
"WHENFREE_CALENDARS": "<WHENFREE_CALENDARS>",
"WHENFREE_TZ": "<WHENFREE_TZ>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
WHENFREE_CALENDARSOptional, secret | Private iCal addresses of your calendars, comma-separated. Optional if you saved them with `whenfree add`. |
WHENFREE_TZOptional | Time zone for answers, like Europe/London. Default: the computer's. |
Details
| Package | [email protected] (PYPI, stdio) |
| First published | 9 Oct 2026 |
| Last updated | 9 Oct 2026 |
| Registry name | io.github.YauhenBichel/when-free |
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