Leaderboard/World Weather Online

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

World Weather Online

Global weather API: forecasts, historical data, marine, ski, astronomy and timezone.

32/100

Operational Score

Score Breakdown

Availability0/30

Conformance10/30

Performance22/40

Key Metrics

Uptime 30d

13.0%

P95 Latency

36ms

Conformance

Fail

Trend

What's Being Tested

Availability

HTTP health check to the service endpoint

Responded with HTTP 404 in 36ms

Conformance

MCP initialize handshake + tools/list

MCP initialize handshake failed

Performance

MCP ping + zero-arg tool invocation benchmarking

P95 latency: 36ms, task completion: 0%

Improvement Tips

Recent Probe Results

Timestamp	Status	Latency	Conformance	Details
Jun 9, 2026	success	36ms	Partial	-
Jun 5, 2026	success	26.6ms	Partial	-
Jun 5, 2026	success	33.2ms	Partial	-
Jun 4, 2026	error	0ms	Fail	Request error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'mcp.worldweatheronline.com'. (_ssl.c:1010)
Jun 3, 2026	error	0ms	Fail	Request error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'mcp.worldweatheronline.com'. (_ssl.c:1010)
May 30, 2026	error	0ms	Fail	Request error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'mcp.worldweatheronline.com'. (_ssl.c:1010)
May 29, 2026	error	0ms	Fail	Request error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'mcp.worldweatheronline.com'. (_ssl.c:1010)
May 29, 2026	error	0ms	Fail	Request error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'mcp.worldweatheronline.com'. (_ssl.c:1010)
May 27, 2026	error	0ms	Fail	Request error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'mcp.worldweatheronline.com'. (_ssl.c:1010)
May 27, 2026	error	0ms	Fail	Request error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'mcp.worldweatheronline.com'. (_ssl.c:1010)

Source Registries

mcp-registry

First Seen

Apr 10, 2026

Last Seen

Jun 8, 2026

Last Probed

Jun 9, 2026