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Open source alternatives to AI Agent Builder
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Open source alternatives to AI Agent Builder

Open source startups in the same category as AI Agent Builder, ranked by GitHub stars and growth. Each repository is verified as belonging to the startup.

StartupRepositoryStars+30d90 daysLicense
Agent Builder by Thesys thesysdev/openui 10,801 +1,927 Agent Builder by Thesys: GitHub stars, last 90 days MIT
MagiCrew dtyq/magic 5,051 +38 MagiCrew: GitHub stars, last 90 days Other
LeanMCP leanmcp/gateway-skills 2,111 +7 LeanMCP: GitHub stars, last 90 days MIT
FIM One fim-ai/fim-one 1,584 +82 FIM One: GitHub stars, last 90 days Other
Relevance AI relevanceai/relevanceai 283 — Relevance AI: GitHub stars, last 90 days Apache-2.0
Rantir rantirai/computircloud 40 — Rantir: GitHub stars, last 90 days Other
LLmrix llmrix/llm-wiki-skill 22 +3 LLmrix: GitHub stars, last 90 days MIT
Knowrithm CLI knowrithm/knowrithm-cli 0 — Knowrithm CLI: GitHub stars, last 90 days —
AgentOS wahib-el-khadiri/agentos 0 — AgentOS: GitHub stars, last 90 days —

Data: GitHub APIAll open source startups →