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

Stunt Double

www.stuntdouble.io↗|v1.0.0

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

54/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance14/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
889.5ms
Conformance
Fail
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 401 in 889ms
ConformanceNot tested
MCP initialize handshake + tools/list
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 889ms, task completion: 0%
Recent Probe Results
TimestampStatusLatencyConformance
May 16, 2026success889.5msPass
May 13, 2026success238.5msPass
May 13, 2026success365.7msPass
May 12, 2026success413.1msPass
May 11, 2026success849.9msPass
May 9, 2026success906.4msPass
May 7, 2026success296.4msPass
May 7, 2026success259msPass
May 7, 2026success346.7msPass
May 6, 2026success229.2msPass
Source Registries
mcp-registry
First Seen
Mar 26, 2026
Last Seen
May 17, 2026
Last Probed
May 16, 2026