MCP ServerScored via MCP protocol probing: initialize handshake, tools/list conformance, and ping + tool invocation performance.
usgswater
USGS Water MCP — wraps USGS National Water Information System (NWIS) REST services (free, no auth)
85/100
Operational Score
Score Breakdown
Availability30/30
Conformance30/30
Performance25/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
203.4ms
Conformance
Pass
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 405 in 30ms
Conformance
MCP initialize handshake + tools/list
Valid MCP server info returned, tools/list responded
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 203ms, task completion: 100%
Skills
get_current
Get current instantaneous streamflow (discharge, cfs) and gage height (ft) for a USGS monitoring site.
search_sites
Find active USGS stream-gage sites in a US state that have real-time instantaneous data.
get_daily
Get daily mean streamflow values for a USGS site over a date range. Dates must be in YYYY-MM-DD format.
Tools
3 tools verified via live probeServer: pipeworx-gatewayVersion: 0.1.0Protocol: 2025-03-26
Recent Probe Results
| Timestamp | Status | Latency | Conformance |
|---|---|---|---|
| Apr 5, 2026 | success | 30.2ms | Pass |
| Apr 5, 2026 | success | 23.3ms | Pass |
| Apr 5, 2026 | success | 19.5ms | Pass |
| Apr 5, 2026 | success | 16.6ms | Pass |
| Apr 5, 2026 | success | 17.4ms | Pass |
| Apr 5, 2026 | success | 23.5ms | Pass |
| Apr 5, 2026 | success | 20.7ms | Pass |
| Apr 5, 2026 | success | 27.4ms | Pass |
| Apr 5, 2026 | success | 18.9ms | Pass |
| Apr 5, 2026 | success | 31.8ms | Pass |
Source Registries
mcp-registry
First Seen
Apr 3, 2026
Last Seen
Apr 4, 2026
Last Probed
Apr 5, 2026