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

card-registry

Hosts agent-card.json files for businesses who can't serve them from their own domain. Cards are permanently discoverable by any A2A agent at a stable URL. Pay $0.001 USDC per month per card via x402 on Base network.

55/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance15/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
199.8ms
Conformance
Fail
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 401 in 230ms
ConformanceNot tested
MCP initialize handshake + tools/list
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 199ms, task completion: 0%
Recent Probe Results
TimestampStatusLatencyConformance
Apr 10, 2026success230.2msPass
Apr 10, 2026success361.3msPass
Apr 10, 2026success199.8msPass
Source Registries
smithery
First Seen
Apr 10, 2026
Last Seen
Apr 10, 2026
Last Probed
Apr 10, 2026
card-registry — Chiark Agent Quality Index