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

JSONShelf

jsonshelf.vercel.app↗|v1.0.0

Deterministic JSON repair, validate, example-gen, schema-coerce for agents. Zero LLM, sub-10ms.

80/100
Operational Score
Score Breakdown
Availability30/30
Conformance30/30
Performance20/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
2,875.8ms
Conformance
Pass
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 404 in 2875ms
Conformance
MCP initialize handshake + tools/list
Valid MCP server info returned, tools/list responded
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 2875ms, task completion: 100%
Improvement Tips
  • -Reduce response time (currently 2875ms, target <1000ms)
Tools
4 tools verified via live probe
verified 4d ago
Server: jsonshelfVersion: 1.0.0Protocol: 2024-11-05
Recent Probe Results
TimestampStatusLatencyConformance
Jun 5, 2026success2875.8msPass
Jun 5, 2026success2080.2msPass
Jun 4, 2026success2287.6msPass
Jun 3, 2026success160.9msPass
May 30, 2026success75.2msPass
May 29, 2026success2170.1msPass
May 29, 2026success145.1msPass
May 27, 2026success1913.4msPass
May 27, 2026success2341.7msPass
May 27, 2026success2150.3msPass
Source Registries
mcp-registry
First Seen
Apr 19, 2026
Last Seen
Jun 8, 2026
Last Probed
Jun 5, 2026