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

Library Of Congress

Library of Congress (loc.gov) MCP — the world's largest library.

90/100
Operational Score
Score Breakdown
Availability30/30
Conformance30/30
Performance30/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
29ms
Conformance
Pass
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 405 in 29ms
Conformance
MCP initialize handshake + tools/list
Valid MCP server info returned, tools/list responded
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 29ms, task completion: 100%
Tools
30 tools verified via live probe
verified 22h ago
Server: pipeworx-gatewayVersion: 0.1.0Protocol: 2025-03-26
Recent Probe Results
TimestampStatusLatencyConformance
Jun 27, 2026success29msPass
Source Registries
mcp-registry
First Seen
Jun 27, 2026
Last Seen
Jun 28, 2026
Last Probed
Jun 27, 2026