Leaderboard/Cathedral — Persistent Memory for AI Agents
MCP ServerScored via MCP protocol probing: initialize handshake, tools/list conformance, and ping + tool invocation performance.

Cathedral — Persistent Memory for AI Agents

Persistent memory and drift detection for AI agents across session restarts.

50/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance10/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
222.5ms
Conformance
Fail
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 401 in 217ms
ConformanceNot tested
MCP initialize handshake + tools/list
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 222ms, task completion: 0%
Recent Probe Results
TimestampStatusLatencyConformance
Apr 12, 2026success217.4msPass
Apr 12, 2026success348.4msPass
Apr 12, 2026success222.5msPass
Source Registries
mcp-registry
First Seen
Apr 12, 2026
Last Seen
Apr 12, 2026
Last Probed
Apr 12, 2026
Cathedral — Persistent Memory for AI Agents — Chiark Agent Quality Index