io.github.YauhenBichel/when-free
when-free
Is the when-free MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.
Which days and times am I free? Reads your calendar feeds and answers with the slots you can offer.
alive probed 2026-11-15 · unchanged since 2026-10-30
- Run it
- uvx when-free@0.4.1 (stdio, probed in a container with the network off)
- Host
- pypi.org
- Reports itself as
- when-free 0.4.1
- Capabilities
- tools
- Instructions
- 256 characters
- Of a 1M window
- 0.1 % of a 1M context window
- Count
- 1.3k tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 1.3k. The o200k_base estimate is 788. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/YauhenBichel/when-free
- Website
- https://github.com/YauhenBichel/when-free#readme
- Registry
- active, updated 2026-10-09 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.61×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| free_slots | 937 | 582 | 74 % |
| status | 205 | 127 | 16 % |
| check_calendars | 127 | 79 | 10 % |
Compare this server with others.
More servers
Other registry entries on pypi.org, the ones next to this name; all of them.
- io.github.Yarmoluk/ckg-mcp · needs mcp<2
- io.github.Yarmoluk/ckg-nemotron-perplexity · needs mcp<2
- io.github.YashLimbani/stackexchange-mcp · alive
- SuperMemory io.github.YashvantHange/supermemory · alive
- Oracle3 prediction-market arbitrage checks io.github.YichengYang-Ethan/oracle3 · alive
- Embodify io.github.YidaYang/embodify · alive
- io.github.YimingYAN/fivetran-mcp · alive
- io.github.YinTokey/mcp_hackernews · needs mcp<2
Servers that mention when.
- ai.spelunking/hub · alive
- Yokka ai.yokka/yokka · needs auth
- Gardener's Almanac app.gardeners-almanac/gardeners-almanac · needs auth
- app.getcallme/call-me · needs auth
- APICK Skills app.apick/skills · not found
- ai.smithery/smithery-toolbox · not found
- Find My Farmer ca.findmyfarmer/farms · needs auth
- com.ainetcafe/netcafe-tasks · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.