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

Email Verification API

Verify emails: syntax, MX records, disposable detection, quality scoring. x402 micropayments.

50/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance10/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
339.3ms
Conformance
Fail
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 404 in 232ms
Conformance
MCP initialize handshake + tools/list
MCP initialize handshake failed
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 339ms, task completion: 0%
Improvement Tips
  • -Fix MCP initialize handshake errors
Recent Probe Results
TimestampStatusLatencyConformance
Apr 12, 2026success232.2msPartial
Apr 12, 2026success486.2msPartial
Apr 12, 2026success339.3msPartial
Source Registries
mcp-registry
First Seen
Apr 12, 2026
Last Seen
Apr 12, 2026
Last Probed
Apr 12, 2026
Email Verification API — Chiark Agent Quality Index