MCP ServerScored via MCP protocol probing: initialize handshake, tools/list conformance, and ping + tool invocation performance.
EPA Air Quality & Toxics
Toxics Release Inventory, Superfund sites, air quality data, and AQI
60/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance20/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
289.3ms
Conformance
Fail
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 421 in 277ms
Conformance
MCP initialize handshake + tools/list
MCP initialize handshake failed
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 289ms, task completion: 0%
Improvement Tips
- -Fix MCP initialize handshake errors
Recent Probe Results
| Timestamp | Status | Latency | Conformance |
|---|---|---|---|
| Apr 5, 2026 | success | 277.1ms | Partial |
| Apr 5, 2026 | success | 271.7ms | Partial |
| Apr 5, 2026 | success | 270.6ms | Partial |
| Apr 5, 2026 | success | 278.3ms | Partial |
| Apr 5, 2026 | success | 263.9ms | Partial |
| Apr 5, 2026 | success | 271ms | Partial |
| Apr 5, 2026 | success | 262.6ms | Partial |
| Apr 5, 2026 | success | 266.7ms | Partial |
| Apr 5, 2026 | success | 271.5ms | Partial |
| Apr 5, 2026 | success | 308.5ms | Partial |
Source Registries
mcp-registry
First Seen
Apr 3, 2026
Last Seen
Apr 4, 2026
Last Probed
Apr 5, 2026