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Best Alternatives to Agent2Agent Protocol JS SDK

Agent Frameworks · 8 alternatives ranked of 45 in the category

Looking for alternatives to Agent2Agent Protocol JS SDK? These are the agent frameworks tools ranked using catalog signals, with what separates each one from Agent2Agent Protocol JS SDK.

FastAPI-MCP logo
FastAPI-MCP

Agent Frameworks· fastapi-mcp.tadata.com

Open source

MCP adapter that exposes FastAPI endpoints as authenticated Model Context Protocol tools.

How each alternative differs from Agent2Agent Protocol JS SDK

Ranked using catalog adoption, review, repository, funding and featured signals. Automated benchmark measurements are unavailable and excluded. Each note below is drawn from the two products’ own catalog records, so a product with nothing to separate it from Agent2Agent Protocol JS SDK carries no note.

  1. 1

    FastAPI-MCP

    FastAPI-MCP carries 12k GitHub stars to Agent2Agent Protocol JS SDK's 649.

  2. 2

    Dify

    Dify carries 160k GitHub stars to Agent2Agent Protocol JS SDK's 649.

  3. 3

    Langflow

    Langflow carries 156k GitHub stars to Agent2Agent Protocol JS SDK's 649.

  4. 4

    n8n

    n8n carries 210k GitHub stars to Agent2Agent Protocol JS SDK's 649.

  5. 5

    AgentScope

    AgentScope carries 36k GitHub stars to Agent2Agent Protocol JS SDK's 649.

  6. 6
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12,028
Open source
Dify logo
Dify

Agent Frameworks· dify.ai

Freemium

Open-source platform for building agentic workflows, RAG apps, and LLM application backends.

160,362
Open source
Langflow logo
Langflow

Agent Frameworks· langflow.org

Open source

Visual Python framework for building and deploying agentic and RAG applications with reusable components and API endpoints.

156,339
Open source
n8n logo
n8n

Agent Frameworks· n8n.io

Freemium

Source-available workflow automation platform for building AI agent workflows, tool integrations, and production automations across APIs and apps.

209,650
Open source
AgentScope logo
AgentScope

Agent Frameworks· agentscope.io

Open source

Agent framework for building and running observable, understandable, and controllable agent systems.

35,526
Open source
Flowise logo
Flowise

Agent Frameworks· flowiseai.com

Open source

Open-source low-code platform for building LLM apps, agent flows, RAG pipelines, and production chat automations.

55,552
Open source
Microsoft AutoGen logo
Microsoft AutoGen

Agent Frameworks· microsoft.github.io

Open source

Open-source Microsoft framework for building, orchestrating, and evaluating multi-agent AI applications.

61,706
Open source
Serena logo
Serena

Agent Frameworks· github.com

Open source

MCP toolkit that gives coding agents semantic code retrieval, symbol understanding, and repository editing capabilities.

31,137
Open source

Flowise

Flowise carries 56k GitHub stars to Agent2Agent Protocol JS SDK's 649.

  • 7

    Microsoft AutoGen

    Microsoft AutoGen carries 62k GitHub stars to Agent2Agent Protocol JS SDK's 649.

  • 8

    Serena

    Serena carries 31k GitHub stars to Agent2Agent Protocol JS SDK's 649.