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Composio SDK Alternatives in 2026

The best 8 open-source Composio SDK alternatives in 2026, ranked by GitHub stars. Find free, self-hosted replacements for Composio SDK.

8 Alternatives
100% Open Source
Free To Self-Host

What are the best Composio SDK alternatives in 2026?

The best open-source Composio SDK alternatives in 2026 are Composio, OpenAI Python SDK, Transformers, LangChain, vLLM. These tools cover the same use cases as Composio SDK — sdk for integrating 250+ tools into ai agents and llms — with the advantage of being open-source, free to self-host, and backed by active communities. Top picks are ranked by GitHub stars and community adoption, so you can find a drop-in replacement that fits your workflow.

#1
Composio ★ 30k+ Top Pick

Integration platform for AI agents with 250+ tools

tools integration agents open-source
→
#2
OpenAI Python SDK ★ 31k+ Top Pick

Official OpenAI Python client library

sdk openai api open-source
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#3
Transformers ★ 164k+ Top Pick

State-of-the-art ML models for NLP, vision and audio

llm framework huggingface open-sourceApache-2.0
→
#4
LangChain ★ 144k+

Framework for building LLM-powered applications

llm framework rag open-sourceMIT
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#5
vLLM ★ 90k+

High-throughput LLM serving with PagedAttention

llm inference serving open-sourceApache-2.0
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#6
Unsloth ★ 75k+

2-5x faster LLM fine-tuning with 70% less memory

fine-tuning performance llm open-sourceApache-2.0
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#7
LLaMA-Factory ★ 74k+

Unified fine-tuning framework for 100+ LLMs with WebUI

fine-tuning llm framework open-sourceApache-2.0
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#8
Docling ★ 65k+

IBM's document parsing and understanding library

document parsing ocr open-source
→

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Last updated: Aug 28, 2026 · Curated by AI Tools Hub Editorial · About · Contact · Privacy