Mastra vs Stack AI

Side-by-side comparison of Mastra and Stack AI: pricing, features, API access, and community ratings.

AI comparison summary

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	Mastra Build AI agents. Build, observe, and improve agents that run for days with Mastra, the leading TypeScript agent framework. Visit	Stack AI Orchestrate enterprise AI agents with security, governance, and 100+ integrations — in minutes. Visit
Category	Agent frameworks	Agent frameworks
Pricing	Freemium	Enterprise
Starting price
Free tier
Audience	All audiences	All audiences
API available
Open source
Self-hostable
Model provider	OpenAI, Anthropic, Gemini, and 90+ providers	LLM Agnostic (Anthropic, OpenAI, and others)
Founded		2022
Headquarters		San Francisco, USA
Key strengths	·TypeScript-native agent framework ·Built-in observability (traces, metrics, evals, datasets) ·90+ model provider support via single API ·Durable workflows with typed control flow	·Enterprise-grade security (HIPAA, GDPR, SOC 2 Type II, ISO 27001) ·LLM-agnostic orchestration — deploy the best model per task ·100+ enterprise integrations for end-to-end workflow automation ·Human-in-the-loop controls for critical decision points