Leaderboard/PQS - Prompt Quality Score
MCP ServerScored via MCP protocol probing: initialize handshake, tools/list conformance, and ping + tool invocation performance.

PQS - Prompt Quality Score

The world's first named AI prompt quality score. Score any LLM prompt before it hits any model — returns grade (A-F), score out of 40, percentile, and dimension breakdown across 8 quality dimensions. Built on PEEM, RAGAS, G-Eval, and MT-Bench frameworks. **Tools:** - score_prompt — Free. No API key needed. - optimize_prompt — $0.025 USDC. Returns optimized prompt + full breakdown. - compare_models — $0.50 USDC. Claude vs GPT-4o head-to-head. Cheaper than one bad inference call.

60/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance20/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
230.4ms
Conformance
Fail
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 401 in 231ms
ConformanceNot tested
MCP initialize handshake + tools/list
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 230ms, task completion: 0%
Recent Probe Results
TimestampStatusLatencyConformance
Apr 10, 2026success231.1msPass
Apr 10, 2026success217.8msPass
Apr 10, 2026success207.6msPass
Apr 10, 2026success200.7msPass
Apr 10, 2026success230.4msPass
Source Registries
smithery
First Seen
Apr 10, 2026
Last Seen
Apr 10, 2026
Last Probed
Apr 10, 2026
PQS - Prompt Quality Score — Chiark Agent Quality Index