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Alternatives to antigravity-sdk-python

antigravity-sdk-python is an agent framework by google-antigravity: Python SDK for building agents on Google Antigravity and Gemini, with the agent loop handled by the runtime. If it doesn't fit your setup, these 12 agent frameworks cover similar ground. They are ordered by how closely they match antigravity-sdk-python and by our rank, which weighs adoption, freshness and documentation; money never changes the order. LlamaIndex leads the list (more GitHub stars (52.6K)). Each entry shows data reasons to switch, and you can open a side-by-side comparison with antigravity-sdk-python.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

You're replacing

antigravity-sdk-python

Python SDK for building agents on Google Antigravity and Gemini, with the agent loop handled by the runtime.

12 alternatives

Ordered by how closely each matches antigravity-sdk-python (shared product, category or stated alternative) and by rank.

  1. 1
    LlamaIndex

    LlamaIndex

    Open-source Python toolkit for RAG and agents over your own data, with event-driven workflows and 300+ integration packages.

    • More GitHub stars (52.6K)

    ★ 52.6K↓ 1.4M/wkLast active Oct 14, 2026Compare →

  2. 2
    LangChain

    LangChain

    Python framework of interoperable components and integrations for building agents and LLM apps, with LangGraph and Deep Agents layered above it.

    • More GitHub stars (148.4K)

    ★ 148.4K↓ 37.3M/wkLast active Oct 24, 2026Compare →

  3. 3
    LangGraph

    LangChain

    Low-level Python orchestration framework for long-running stateful agents, with durable execution, human review points and short- and long-term memory.

    • More GitHub stars (43.8K)

    ★ 43.8K↓ 13.1M/wkLast active Oct 24, 2026Compare →

  4. 4
    CrewAI

    CrewAI

    Open-source Python framework for multi-agent workflows, with role-based Crews and event-driven Flows.

    • More GitHub stars (60.1K)

    ★ 60.1K↓ 644.6K/wkLast active Oct 24, 2026Compare →

  5. 5
    AutoGen

    Microsoft

    Archived Microsoft Python framework for multi-agent apps; Microsoft directs new users to Microsoft Agent Framework.

    • More GitHub stars (61.5K)

    ★ 61.5K↓ 89K/wkLast active Oct 16, 2026Compare →

  6. 6
    Claude Agent SDK (Python)

    Anthropic

    Python SDK that runs the Claude Code agent loop inside your own program, with custom tools and hooks written as Python functions.

    • More GitHub stars (8.3K)

    ★ 8.3K↓ 7.9M/wkLast active Oct 24, 2026

  7. 7
    python-utcp

    universal-tool-calling-protocol

    Official Python implementation of the Universal Tool Calling Protocol, calling HTTP, CLI, MCP and text-file tools through plugins.

    • Open source (MPL-2.0)
    • For Python

    ★ 653↓ 1.9K/wkLast active Sep 16, 2026

  8. 8
    Strands Agents

    AWS

    Open-source Python and TypeScript SDK for model-driven agents, with tools, MCP, multi-agent patterns and streaming.

    • More GitHub stars (8.9K)
    • Supports TypeScript

    ★ 8.9K↓ 8.9M/wkLast active Oct 24, 2026

  9. 9
    GitHub Copilot SDK

    GitHub

    Multi-language SDKs for embedding the GitHub Copilot agent runtime, with planning, tool calls and file edits, in your apps.

    • More GitHub stars (10.6K)
    • Supports TypeScript and Go

    ★ 10.6K↓ 1.2M/wkLast active Oct 24, 2026

  10. 10
    Pydantic AI

    Pydantic

    Typed Python SDK for building agents with swappable model providers, plus optional capabilities for memory, sub-agents, planning and durable execution.

    • More GitHub stars (20.8K)

    ★ 20.8K↓ 1.5M/wkLast active Oct 24, 2026

  11. 11
    Google Agent Development Kit (ADK)

    Google

    Open-source toolkit for building, evaluating and deploying agents in Python, TypeScript, Go, Java and Kotlin, tuned for Gemini but model-agnostic.

    • More GitHub stars (22K)
    • Supports TypeScript and Go

    ★ 22K↓ 2.4M/wkLast active Oct 24, 2026

  12. 12
    Agno

    Agno

    Python framework and runtime for building agents, serving them over a REST API and MCP server, and managing them from a web control plane.

    • More GitHub stars (42.9K)

    ★ 42.9K↓ 519.4K/wkLast active Oct 24, 2026

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