1
AutoGPTFreemium · Gratuit (open source)
Pionnier des agents autonomes, désormais en version plateforme.
Why as an alternative to Mastra: free tier to test, paid at Gratuit (open source) for regular use.
The top 5
The best alternatives to Mastra
2
CognosysFreemium · 14 €/mois
Agent IA web qui exécute recherches et tâches en autonomie.
Why as an alternative to Mastra: free tier to test, paid at 14 €/mois for regular use.
3
CrewAIFreemium · Gratuit (open source)
Framework open source pour orchestrer des équipes d'agents IA.
Why as an alternative to Mastra: free tier to test, paid at Gratuit (open source) for regular use.
4
DevinPaid · 20 €/mois
L'ingénieur logiciel autonome de Cognition.
Why as an alternative to Mastra: paid at 20 €/mois from the start, no meaningful trial.
5
DustPaid · 29 €/mois
Plateforme d'agents IA pour les équipes, branchée à tes outils.
Why as an alternative to Mastra: paid at 29 €/mois from the start, no meaningful trial.
Also worth knowing
Other alternatives in the same category
8 additional Agents IA tools worth knowing. Less priority than the top 5, but useful depending on the case.
6
GensparkAgents IASuper-agent qui combine recherche, agents et plus de 80 outils.—Note7
LangGraphAgents IAFramework d'agents IA à états, signé LangChain.—Note8
LindyAgents IAConstruis des assistants IA qui automatisent tes tâches récurrentes.—Note9
ManusAgents IAAgent IA généraliste autonome, qui exécute des tâches de bout en bout.—Note10
Multi-onAgents IAAgent qui agit pour toi directement dans le navigateur.—Note11
OttogridAgents IAAgents de recherche qui remplissent des tableaux de données.—Note12
Pydantic AIAgents IAFramework d'agents IA typé, signé l'équipe Pydantic.—Note13
SkyvernAgents IAAgent qui automatise les workflows directement dans le navigateur.—Note
Frequently asked
Everything to know before switching
What is the best alternative to Mastra in 2026?
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AutoGPT tops our ranking among the 13 alternatives identified in the Agents IA category. The verdict shifts based on your profile and budget: we detail the top 5 above.
Is there a free alternative to Mastra?
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Yes, Pydantic AI is a real free alternative, framework d'agents ia typé, signé l'équipe pydantic. Several other tools in the category offer a freemium tier.
Is Mastra really the best in its category?
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Mastra hasn't been fully tested by Joute yet. The ranking above is based on alternative scores -- use it as guidance, not a final verdict.
Why look for an alternative to Mastra?
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Three common reasons: the price gets too high, the tool no longer covers a refined use case, or you want to de-risk your stack. The Agents IA category is well-stocked in 2026 to find better or cheaper.