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

Preflight

github.com/evanfollis/preflight↗|v0.1.0

Check if your MCP server is ready to publish on the MCP Registry, Smithery, or npm.

89/100
Operational Score
Score Breakdown
Availability30/30
Conformance30/30
Performance29/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
277.1ms
Conformance
Pass
Trend
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 405 in 4302ms
Conformance
MCP initialize handshake + tools/list
Valid MCP server info returned, tools/list responded
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 277ms, task completion: 100%
Improvement Tips
  • -Reduce response time (currently 4302ms, target <1000ms)
Skills
check_publish_readiness

Validate whether an MCP server is publishable on real directories (MCP Registry, Smithery, npm). Provide raw artifact contents. Returns evidence-backed findings with source-linked directory rules.

Tools
1 tool verified via live probe
verified 5d ago
Server: preflightVersion: 0.1.0Protocol: 2025-11-25
Recent Probe Results
TimestampStatusLatencyConformance
May 22, 2026success4302.3msPass
May 21, 2026success277.1msPass
May 20, 2026success264msPass
May 18, 2026success93.9msPass
May 16, 2026success267.1msPass
May 13, 2026success93.5msPass
May 13, 2026success103.9msPass
May 12, 2026success251.9msPass
May 11, 2026success298.7msPass
May 9, 2026success92.9msPass
Source Registries
mcp-registry
First Seen
Apr 12, 2026
Last Seen
May 21, 2026
Last Probed
May 22, 2026