Prompts that get smarter with every use.
The optimization engine that learns what works — then delivers it at runtime.
$ npm install -g mcp-prompt-optimizerZero-Cost Router · Live
Incoming prompt
Layer 1 · Precision Lock™
Regex-based pattern matching · 0ms · $0
✓ Match — routed locally
Precision Lock™
Regex-based · 0ms · $0
Prompt Optimizer improves AI prompts for better, more reliable outputs.
It rewrites prompts to be clearer, more specific, and better aligned with how large language models interpret instructions — so you get more accurate and consistent results across common tasks.
Unlike prompt registries that simply store what you write, we actively optimize every prompt using a 3-tier AI pipeline — then learn from what works to surface reusable patterns automatically.
Why AI output quality varies
Generic prompts create noise. Prompt Optimizer amplifies the signal with intelligent context detection and high-signal prompt design.
Manual Prompt Writing
Low-signal input
- Generic AI output that requires heavy editing
- No awareness of your audience or constraints
- Lots of manual prompt iteration and rewrites
- Inconsistent tone and structure across outputs
With Prompt Optimizer
High-signal input
- 50+ Pattern Triggers (React, Image Gen, SOLID)
- Enterprise Reliability with Team Quotas
- Tiered MCP Access & Shared Workspaces
- Observability with Root Cause Protocols
Evaluation Layer
How we prove it works
Most prompt tools ask you to trust the output. We give you three ways to verify it — deterministic assertions, constraint checks, and semantic drift scores.
Assertion Testing
Pass/fail checks on every output
Define deterministic assertions — length limits, required phrases, JSON validity, regex matches — and LLM-rubric scores. Run them against your prompt outputs and get a measurable pass rate, not a gut feeling.
Constraint Preservation
Your instructions survive optimization
When a prompt is optimized, word limits, format requirements, tone directives, and persona rules are checked explicitly. If a constraint is dropped during improvement, the check fails — before it reaches production.
Semantic Drift Score
Better wording, same meaning
Cosine similarity between original and optimized prompt embeddings gives a drift score from 0 (identical meaning) to 1 (completely different). High drift flags when "improvement" may have changed what you're actually asking for.
Test your prompts right now
No dataset required. Paste a prompt, run assertions, get a pass rate in seconds.
Decouple prompts from deploys
Fetch your latest optimized prompt at runtime — no code change, no redeploy. Update once in the dashboard, live everywhere instantly.
How We Compare
Switching from another tool?
See detailed feature and price comparisons
Choose your deployment
Cloud for speed. MCP Server for control. Intent Engineering for precision — ranked goals that shape routing and LLM behavior simultaneously.
Cloud Edition
Zero-setup, always up to date. Works across web, extensions, and MCP clients.
MCP Server
Deploy Prompt Optimizer on your infra with enterprise controls and auditing.
Quality Guardrails
Define a set of non-negotiable rules for your AI. Automatically prevent hallucinations by enforcing strict response formats and quality standards across all your prompts.
- Quality Rules: Ranked goals for deterministic output
- Prompt Security: Block prompt injection and hallucinations
- Auto-Routing: Optimize for cost without losing quality
Enterprise Governance
Semantic versioning, environment scoping (dev/staging/prod), and instant rollback — built into every template.
- Auto-versioned: On every edit
- Environments: Dev / Staging / Production
- One-click rollback: To any version
- Audit trail: Included
Upgrade when you are ready
Explorer is for evaluating whether Prompt Optimizer fits your workflow. Creator is for daily production use — 18,000 optimizations a month means you never have to think about quota.
Free Trial
Validate fit before committing
- 5 optimizations total
- Personal Use Only
- Quality Guardrails (Basic)
- Basic Analytics
Explorer
Evaluate whether optimization improves your workflow
- 20 optimizations per month
- 5 Context Engineering Quota
- 1 Shared API Key
- Rules-based MCP Access
Creator
Daily production use — optimize every prompt
- 18,000 optimizations per month
- Production Quality Guardrails
- 3 Shared API Keys
- Enterprise Safety Tier
- Runtime delivery API
- {{variable}} interpolation
- Webhook push on template changes
Innovator
Teams and enterprise-scale pipelines
- 75,000 optimizations per month
- Advanced Quality Guardrails
- 10 Shared API Keys
- SLA & Enterprise Support
- Environment scoping (dev/staging/prod)
- Template version history + rollback
- Audit trail
- Draft/published workflow
No credit card required for Free Trial · Cancel anytime · Annual plans include priority infrastructure access