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

AgentIndex

Search 15K+ MCP services, A2A agents, and x402 APIs from 5 registries. Paid via x402 (USDC on Base).

65/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance25/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
182.7ms
Conformance
Fail
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 404 in 184ms
Conformance
MCP initialize handshake + tools/list
MCP initialize handshake failed
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 182ms, task completion: 0%
Improvement Tips
  • -Fix MCP initialize handshake errors
Recent Probe Results
TimestampStatusLatencyConformance
Apr 5, 2026success184.7msPartial
Apr 5, 2026success166.6msPartial
Apr 5, 2026success173.5msPartial
Apr 4, 2026success170.2msPartial
Apr 4, 2026success172msPartial
Apr 4, 2026success182.7msPartial
Apr 4, 2026success168.9msPartial
Apr 4, 2026success165.8msPartial
Apr 4, 2026success166.7msPartial
Apr 4, 2026success181.2msPartial
Source Registries
mcp-registry
First Seen
Apr 4, 2026
Last Seen
Apr 4, 2026
Last Probed
Apr 5, 2026
AgentIndex — Chiark Agent Quality Index