20+ Best Alternatives to Mastra in 2026

Looking for an alternative to Mastra? Below are 20 AI startups working in the same space — ranked by our Neuron score so the most credible options come first. Each card shows what makes the tool a viable substitute, pricing signals, and funding stage.

1. 1

   Resolve AI

   💰 $190M

   AI SRE for complex production environments

   Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

   💵 Enterprise · Contact sales

   View alternative →
2. 2

   deepset

   💰 $45.6M

   Haystack framework and deepset Cloud for enterprise LLM apps

   Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

   💵 Enterprise · Contact sales

   View alternative →
3. 3

   Wonderful

   💰 $286M

   Multilingual enterprise AI agents for customer service

   Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

   💵 Enterprise · Contact sales

   View alternative →
4. 4

   Cursor

   💰 $7.6B

   The AI code editor built for productive engineers.

   Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

   💵 Free · From $20/mo

   View alternative →
5. 5

   xAI

   💰 $56B

   AI designed to understand the universe

   Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

   💵 Paid

   View alternative →
6. 6

   CopilotKit

   💰 $27M

   Open-source framework for building in-app AI copilots and agentic UIs

   Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

   💵 Open source

   View alternative →
7. 7

   Cognition

   💰 $1.1B

   Applied AI lab building Devin, the AI software engineer.

   Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

   💵 Free · From $500/mo

   View alternative →
8. 8

   Zhipu AI

   💰 $2.0B

   Chinese foundation model lab behind ChatGLM and GLM-4.

   Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

   💵 Free

   View alternative →
9. 9

   Adept AI

   💰 $350M

   AI that takes actions in any software

   Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

   💵 Enterprise · Contact sales

   View alternative →
10. 10

    Inflection AI

    💰 $650M

    Personal AI for everyone

    Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

    💵 Free

    View alternative →
11. 11

    H Company

    💰 $220M

    Action-oriented agentic foundation models from Paris

    Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

    💵 Usage-based

    View alternative →
12. 12

    LangChain

    💰 $125M

    Build context-aware AI applications

    Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

    💵 Freemium · From $39/mo

    View alternative →
13. 13

    GitHub Copilot

    💰 Undisclosed

    The world's most adopted AI code assistant — 1M+ developers inside GitHub

    Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

    💵 Free · From $10/mo

    View alternative →
14. 14

    Imbue

    💰 $232M

    Tools to empower humans in the AI age with reliable, collaborative coding agents.

    Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

    💵 Free

    View alternative →
15. 15

    Tabnine

    💰 $55M

    Private AI code assistant for enterprise developers.

    Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

    💵 Freemium · From $12/mo

    View alternative →
16. 16

    Sweep

    💰 $5.5M

    The fastest AI coding assistant for JetBrains IDEs.

    Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

    💵 Free · From $10/mo

    View alternative →
17. 17

    JetBrains AI Assistant

    💰 Undisclosed

    AI inside IntelliJ, PyCharm, WebStorm — code without leaving your JetBrains IDE

    Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

    💵 Free · From $8/mo

    View alternative →
18. 18

    DeepSeek

    💰 Undisclosed

    Open-weights frontier AI models with breakthrough efficiency.

    Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

    💵 Free

    View alternative →
19. 19

    AssemblyAI

    💰 $78M

    AI models for accurate speech recognition

    Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

    💵 Freemium

    View alternative →
20. 20

    Vapi

    💰 $50M

    Build, test and deploy voicebots in minutes rather than months

    Why it's similar: Shares categories with Mastra — AI Agents, AI Developer Tools.

    💵 Freemium

    View alternative →