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

Stunt Double

Deploy AI user personas to validate user journeys at scale. Find UX friction before real users do.

45/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance5/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
1,032.4ms
Conformance
Fail
Trend
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 405 in 333ms
ConformanceNot tested
MCP initialize handshake + tools/list
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 1032ms, task completion: 0%
Improvement Tips
  • -Reduce response time (currently 1032ms, target <1000ms)
Recent Probe Results
TimestampStatusLatencyConformance
Jul 3, 2026success333.8msPass
Jun 30, 2026success1032.4msPass
Jun 27, 2026success219.9msPass
Jun 25, 2026success1046.7msPass
Jun 24, 2026success1101.6msPass
Jun 17, 2026success207.5msPass
Jun 16, 2026success355.7msPass
Jun 16, 2026success200.5msPass
Jun 15, 2026success1073.2msPass
Jun 12, 2026success305msPass
Source Registries
mcp-registry
First Seen
Mar 26, 2026
Last Seen
Jul 3, 2026
Last Probed
Jul 3, 2026