Leaderboard/Callendar
MCP ServerScored via MCP protocol probing: initialize handshake, tools/list conformance, and ping + tool invocation performance.

Callendar

WhatsApp® reminders and rescheduling for Calendly. Public read-only MCP endpoint.

95/100
Operational Score
Score Breakdown
Availability30/30
Conformance30/30
Performance35/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
627ms
Conformance
Pass
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 405 in 532ms
Conformance
MCP initialize handshake + tools/list
Valid MCP server info returned, tools/list responded
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 627ms, task completion: 100%
Tools
4 tools verified via live probe
verified Jun 17
Server: callendar-mcpVersion: 1.0.0Protocol: 2025-06-18
Recent Probe Results
TimestampStatusLatencyConformance
Jun 17, 2026success532.7msPass
Jun 16, 2026success627msPass
Jun 16, 2026success599.9msPass
Jun 15, 2026success713.3msPass
Jun 12, 2026success611.7msPass
Jun 11, 2026success713.7msPass
Jun 11, 2026success530.4msPass
Jun 10, 2026success621.5msPass
Jun 9, 2026success603.1msPass
Jun 5, 2026success620.4msPass
Source Registries
mcp-registry
First Seen
May 9, 2026
Last Seen
Jun 23, 2026
Last Probed
Jun 17, 2026