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.

45/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance5/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
1,123.6ms
Conformance
Fail
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 401 in 266ms
ConformanceNot tested
MCP initialize handshake + tools/list
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 1123ms, task completion: 0%
Improvement Tips
  • -Reduce response time (currently 1123ms, target <1000ms)
Recent Probe Results
TimestampStatusLatencyConformance
Apr 3, 2026success266.1msPass
Apr 3, 2026success214.3msPass
Apr 3, 2026success848.9msPass
Apr 3, 2026success198.5msPass
Apr 3, 2026success1082.1msPass
Apr 3, 2026success881.6msPass
Apr 3, 2026success272.2msPass
Apr 3, 2026success799.3msPass
Apr 3, 2026success787.5msPass
Apr 3, 2026success1141.4msPass
Source Registries
mcp-registry
First Seen
Mar 26, 2026
Last Seen
Apr 1, 2026
Last Probed
Apr 3, 2026