A agentindex
Comparison

Mastra vs AWS Strands Agents

A like-for-like, spec-level comparison. Both entries are verified against their docs and repo.

Mastra

The TypeScript-first agent framework.

  • + Best-in-class DX for TS/JS teams
  • + Includes evals and memory out of the box
  • − Elastic license limits some commercial hosting
  • − Smaller community than Python options

AWS Strands Agents

AWS's model-driven, open-source agent SDK.

  • + Model-driven design keeps agents concise
  • + Tight AWS Bedrock and observability integration
  • − Leaned toward the AWS ecosystem
  • − Smaller community than LangGraph/CrewAI
Spec Mastra AWS Strands Agents
Role Agent framework Agent framework
Tags agent-framework, library, orchestration, persona-solo-builder, persona-platform-engineer agent-framework, library, orchestration, persona-solo-builder, persona-platform-engineer
License Elastic-2.0 Apache-2.0
Open source Yes Yes
Self-hostable Yes Yes
MCP support Yes Yes
Pricing free free
Price Free Free
Usage cost BYOK BYOK
Models claude, gpt, gemini, byok byok
Languages typescript python
GitHub stars 25.8k 6.4k
Last activity 2026-07-04 2026-07-03