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JuicyAgents vs Mastra

Mastra is a TypeScript framework for building custom AI agents, requiring code

Short answer: Pick JuicyAgents if you want ready-made AI agent templates; pick Mastra if you want typed AI agents with built-in observability. JuicyAgents has a free plan; Mastra has a free plan, paid from $250/month.

Which to pick

Pick JuicyAgents if you want…

  • Ready-made AI agent templates
  • Integrations with Gmail, Google Sheets or Google Calendar (on JuicyAgents' list, not Mastra's)

Pick Mastra if you want…

  • Typed AI agents with built-in observability
  • Custom AI agent development
  • Open-source code (mastra-ai/mastra on GitHub)
  • Integrations with React, Next.js or Node (on Mastra's list, not JuicyAgents')

Side by side

What it is
JuicyAgents:JuicyAgents offers ready-made AI agent templates for tasks like email triage, lead management and sales outreach.
Mastra:Mastra is an open-source TypeScript framework for building AI agents with memory, tools, workflows and observability.
Best for
JuicyAgents:Ready-made AI agent templates
Mastra:Typed AI agents with built-in observability
Who it’s for
JuicyAgents:Businesses and developers who want plug-and-play AI agents without building them from scratch.
Mastra:TypeScript developers building AI-powered applications and agents.
Pricing
JuicyAgents:Freemium
Mastra:Freemium
Starting price
JuicyAgents:—
Mastra:$250/month (Teams)
Free plan or trial
JuicyAgents:—
Mastra:Free plan (Starter)
Plans
JuicyAgents:—
Mastra:Starter $0 per month · Teams $250 per month
Open source
JuicyAgents:—
Mastra:Yes, 28,481 GitHub stars
Works with
JuicyAgents:Gmail, Google Sheets, Google Calendar, HubSpot, Slack
Mastra:React, Next.js, Node, LibSQL, Postgres, Vite

JuicyAgents features

  • Pre-built agent recipes. Browse a library of 130+ ready-made agents for common workflows such as lead pipelines and QA testing.
  • Gmail integration. Agents can read Gmail, extract data and draft replies or follow-ups automatically.
  • Google Sheets/Calendar sync. Agents update Google Sheets with leads, time-off requests or meeting briefs and pull calendar data.
  • Multi-model support. Build agents with models like ChatGPT, Claude, Gemini Spark, OpenAI Dots and others.
  • Step-by-step guides. Each recipe includes setup instructions to get the agent running quickly.

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.

JuicyAgents vs Mastra FAQ

What is the difference between JuicyAgents and Mastra?+

Mastra is a TypeScript framework for building custom AI agents, requiring code.

Should I use JuicyAgents or Mastra?+

Pick JuicyAgents if you want ready-made AI agent templates or integrations with Gmail, Google Sheets or Google Calendar (on JuicyAgents' list, not Mastra's). Pick Mastra if you want typed AI agents with built-in observability, custom AI agent development or open-source code (mastra-ai/mastra on GitHub).

Is JuicyAgents or Mastra free?+

JuicyAgents has a free plan and paid plans. Mastra has a free plan (Starter); paid plans start at $250/month (Teams).

Is JuicyAgents or Mastra open source?+

Mastra is open source (mastra-ai/mastra on GitHub). DevHunt has no public source repository on record for JuicyAgents.

Do JuicyAgents and Mastra integrate with the same tools?+

Their integration lists don't overlap: JuicyAgents lists Gmail, Google Sheets, Google Calendar, HubSpot and 1 more; Mastra lists React, Next.js, Node, LibSQL and 2 more.

On DevHunt

JuicyAgents

1 upvote · Launching on DevHunt on Dec 1, 2026

Based on each tool's website and DevHunt data. Details may change; check the official sites.