Prompt Quality Score
PQS is the fastest way to get better output from any AI model.
Score any prompt before it hits the model. Get a grade (A-F), score out of 80, percentile, and dimension breakdown across 8 quality dimensions. Built on PEEM, RAGAS, MT-Bench, G-Eval, and ROUGE frameworks. Pre-flight, not post-hoc.
The AI input quality problem is real. PQS solves it.
MCP Tools:
- score_prompt: Free. Grade and percentile for any prompt. No API key needed.
- optimize_prompt: $0.025 USDC. Returns optimized prompt with full dimension breakdown.
- compare_models: $1.25 USDC. Side-by-side scoring across multiple models.
HTTP API (x402-native on Base):
- /api/score/free: Free. Grade and percentile, no payment required.
- /api/score: $0.025 USDC. Single score, pay-per-call.
- /api/score/full: $0.125 USDC. Grade, percentile, dimension breakdown, and rewrite.
- /api/score/batch: $0.25 USDC. Score multiple prompts in a single call.
- /api/score/compare: $1.25 USDC. Multi-model side-by-side scoring.
- /api/preflight: $0.05 USDC. Lightweight pre-flight quality check.
Paste a prompt. Get an optimized version. Ship better work.
Cheaper than one bad prompt.
Server Config
{
"mcpServers": {
"pqs": {
"url": "https://promptqualityscore.com/api/mcp"
}
}
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