| What it does | A Rust performance profiler for finding CPU, memory, async, SQL, HTTP, I/O and lock bottlenecks
| Local MCP server manager for Claude, Cursor, VS Code and other AI clients
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| Stage | Not given
| MVP
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| Founded | Not given
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| Based in | PL
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| Pricing model | Open source
| Open source
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| Pricing | Free and open source under MIT license
| Free beta with no account or sign-up required. Source code available under MIT License.
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| Key features | - Time, CPU & memory profiling
- Async observability for futures, channels and streams
- I/O monitoring for files, TCP and compression streams
- SQL query profiling for sqlx and Diesel
- HTTP calls profiling for reqwest and ureq
- HTTP server profiling for axum routes
- Concurrency metrics for Mutex and RwLock
- Tokio runtime monitoring
- Prometheus & Grafana integration
- CI regression detection with automatic benchmarking
| - Server matrix showing which MCP servers are enabled across all supported AI clients
- Health checks and MCP Doctor to diagnose server connection failures
- Profiles to save and switch between different MCP stacks for different tasks
- Timestamped backups with atomic writes and external change detection
- Contract Guard to alert when servers change their tool definitions or descriptions
- Built-in catalog and support for custom JSON, JSONC and TOML configuration sources
- Context optimizer measuring tool-schema footprint and proximity to client limits
- Security scanning for invisible characters, credential exposure and malicious prompts in tool definitions
- Optional Gateway mode for supported stdio servers with local routing and native credential storage
- Live Activity logging with metadata-only recording and no payload capture
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| What makes it different | - No overhead when disabled—all macros compile to no-ops
- Deterministic instruction counts with Callgrind for stable CI regression checks
- Instruments real applications with real workloads, not isolated benchmarks
- MCP server for AI agent integration
- Live TUI dashboard and static reports
| - Works with any existing MCP server you already have configured without requiring migration or special catalog registration
- Detects and alerts when servers change what they tell your model between health checks
- Completely local with no cloud sync, no account, and no upload of configuration or API keys
- Public source code under MIT License so you can audit every request or build from source yourself
- Automatic timestamped backups before every change with the ability to browse and restore earlier versions
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 54 ▲ +2 (up) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 13 | 2 |
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| Citation Flow (Majestic) | 34 | 17 |
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| Referring domains (Majestic) | 151 | 51 |
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KyttoMCP