Compare
Mastra vs SIdekickBar
TypeScript framework for AI agents, not a UI sidekick for developers.
Which to pick
Pick Mastra if you want…
- Typed AI agents with built-in observability
- TypeScript AI agent framework
- Open-source code (mastra-ai/mastra on GitHub)
- Integrations with React, Next.js or Node (on Mastra's list, not SIdekickBar's)
Pick SIdekickBar if you want…
- Multi-assistant AI sidekick for desktop dev environments
- Integrations with OpenAI, Anthropic or Google (on SIdekickBar's list, not Mastra's)
Side by side
- What it is
- Mastra:Mastra is an open-source TypeScript framework for building AI agents with memory, tools, workflows and observability.
- SIdekickBar:SidekickBar is a desktop AI command bar that gives instant access to 30+ AI assistants for code tasks, research and automation.
- Best for
- Mastra:Typed AI agents with built-in observability
- SIdekickBar:Multi-assistant AI sidekick for desktop dev environments
- Who it’s for
- Mastra:TypeScript developers building AI-powered applications and agents.
- SIdekickBar:Developers who need quick AI assistance across multiple workflows.
- Pricing
- Mastra:Freemium
- SIdekickBar:Freemium
- Plans
- Mastra:Starter $0 per month · Teams $250 per month
- SIdekickBar:Free $0 · Annual $12/ year per year · Lifetime $25Lifetime · Team $99/ year per year
- Open source
- Mastra:Yes, 28,481 GitHub stars
- SIdekickBar:—
- Works with
- Mastra:React, Next.js, Node, LibSQL, Postgres, Vite
- SIdekickBar:OpenAI, Anthropic, Google, Librechat, Open-webui, Lobehub
Mastra features
- Typed Agents. Define agents with instructions, models, tools and runtime behavior in TypeScript.
- Workflows. Compose multi-step, retryable, branchable workflows with typed control flow.
- Harness. Coordinate multi-mode agents with shared state, threads and storage.
- Memory. Durable observational memory with semantic recall and thread-aware storage.
- Observability. Logs, metrics, traces, datasets and signals for full runtime insight.
- Server & Studio. Run agents locally or in Mastra Cloud and manage them via a web studio.
SIdekickBar features
- AI Assistant Ecosystem. Access 30+ pre-configured assistants from OpenAI, Anthropic, Google and add custom local or cloud providers.
- Drag & Drop File Analysis. Drop files into the sidebar for instant AI-powered analysis, refactoring or documentation.
- Voice Commands. Control SidekickBar and query models using voice for hands-free interaction.
- Custom Hotkeys. Define global shortcuts to summon the sidebar or trigger specific actions instantly.
- Parallel Assistant Execution. Run multiple AI assistants simultaneously for comparison or multitask workflows.
- In-app Browser. Browse the web without leaving the application, keeping context within the sidebar.
Mastra vs SIdekickBar FAQ
Is Mastra or SIdekickBar free?+
Mastra has a free plan (Starter); paid plans start at $250/month (Teams). SIdekickBar has a free plan and paid plans.
Is Mastra or SIdekickBar open source?+
Mastra is open source (mastra-ai/mastra on GitHub). DevHunt has no public source repository on record for SIdekickBar.
Do Mastra and SIdekickBar integrate with the same tools?+
Their integration lists don't overlap: Mastra lists React, Next.js, Node, LibSQL and 2 more; SIdekickBar lists OpenAI, Anthropic, Google, Librechat and 2 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.