MCP ServerScored via MCP protocol probing: initialize handshake, tools/list conformance, and ping + tool invocation performance.
io.github.cyanheads/calculator-mcp-server
Calculator MCP server — evaluate, simplify, and differentiate math expressions.
65/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance25/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
89.7ms
Conformance
Fail
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 200 in 74ms
Conformance
MCP initialize handshake + tools/list
MCP initialize handshake failed
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 89ms, task completion: 0%
Improvement Tips
- -Fix MCP initialize handshake errors
Recent Probe Results
| Timestamp | Status | Latency | Conformance |
|---|---|---|---|
| Jul 3, 2026 | success | 74.9ms | Partial |
| Jun 30, 2026 | success | 89.7ms | Partial |
| Jun 27, 2026 | success | 75.4ms | Partial |
| Jun 25, 2026 | success | 121.4ms | Partial |
| Jun 24, 2026 | success | 73.8ms | Partial |
| Jun 17, 2026 | success | 120.9ms | Partial |
| Jun 16, 2026 | success | 75.3ms | Partial |
| Jun 16, 2026 | success | 115.8ms | Partial |
| Jun 15, 2026 | success | 87.1ms | Partial |
| Jun 12, 2026 | success | 91.8ms | Partial |
Source Registries
mcp-registry
First Seen
Mar 31, 2026
Last Seen
Jul 5, 2026
Last Probed
Jul 3, 2026