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

Promptster

www.promptster.dev↗|v1.0.0
AI & AgentsDeveloper Tools

Test and compare prompts across any AI provider. Bring your own keys.

50/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance10/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
588.9ms
Conformance
Fail
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 401 in 135ms
ConformanceNot tested
MCP initialize handshake + tools/list
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 588ms, task completion: 0%
Recent Probe Results
TimestampStatusLatencyConformance
Apr 3, 2026success135msPass
Apr 3, 2026success173msPass
Apr 2, 2026success259.9msPass
Apr 2, 2026success265.8msPass
Apr 2, 2026success135.8msPass
Apr 2, 2026success185.1msPass
Apr 2, 2026success128.8msPass
Apr 2, 2026success210.5msPass
Apr 2, 2026success326.4msPass
Apr 2, 2026success244.8msPass
Source Registries
mcp-registry
First Seen
Mar 25, 2026
Last Seen
Apr 1, 2026
Last Probed
Apr 3, 2026