1
Microsoft Agent Framework
learn.microsoft.com/en-us/agent-framework/over…Also covers frameworks · same kind of online tool
Build AI agents and multi-agent workflows in.NET, Python, and Go with Microsoft Agent Framework.
Alternatives
The Best FastAgency Alternatives in 2026
24 alternatives0 free · 11 open source
Looking for something like FastAgency? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 11 are open source.
About FastAgencyfastagency.ai/latest
VisitFastAgency provides a way to bring multi agent workflows into production.
Top picks at a glance
First suggestionMicrosoft Agent FrameworkBuild AI agents and multi-agent workflows in.NET, Python…Open source optionStrands Agents SDKStrands Agents SDK provides an open source toolkit for…Another optionCrewAICrewAI provides a centrally governed platform for teams to…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Microsoft Agent Framework | — | Not stated | Web |
| 2 | CrewAI | — | Not stated | Web |
| 3 | MindPal | — | Not stated | Web |
| 4 | Strands Agents SDK | — | Yes | — |
| 5 | Google Agent Development Kit | — | Not stated | Web |
| 6 | “Westworld” simulation | — | Not stated | Web |
| 7 | Multi-Agent AI - Coding | — | Not stated | Web |
| 8 | Mastra | — | Not stated | — |
| 9 | llama-agents | — | Yes | — |
| 10 | Hive | — | Yes | — |
All FastAgency alternatives
2
CrewAI
crewai.comAlso covers frameworks · same kind of online tool
CrewAI provides a centrally governed platform for teams to build, run, and manage multi-agent business workflows.
3
MindPal
mindpal.spaceAlso covers frameworks
MindPal lets users create branded AI agents and multi-agent workflows trained on their expertise.
4
Also covers frameworks · open source
Strands Agents SDK provides an open source toolkit for building and controlling production agents in Python and TypeScript.
5
Google Agent Development Kit
adk.devAlso covers frameworks · same kind of online tool
Google’s Agent Development Kit helps developers build multi agent systems.
6
“Westworld” simulation
theolvs.github.io/westworldAlso covers frameworks · same kind of online tool
Westworld is a multi agent simulation library, according to its documentation page.
7
Multi-Agent AI - Coding
huggingface.co/spaces/harry85/multi-agent-ai-a…Also covers frameworks · same kind of online tool
This app generates code solutions from a user’s programming task with a multi-agent system.
8
Mastra
github.com/mastra-ai/mastraAlso covers frameworks
Mastra provides a TypeScript framework for creating AI applications and agent workflows.
9
Also covers frameworks · open source
llama-agents provides event-driven agent workflows for controlling AI application execution.
10
Also covers frameworks · open source
Hive supports applications that coordinate multiple AI agents through shared task workflows.
11
PromptShuttle
promptshuttle.comAlso covers frameworks · same kind of online tool
PromptShuttle provides an API for orchestrating multiple agents and routing requests across AI providers.
12
Web
agentforge.netAlso covers frameworks
AgentForge: AI agent framework for building, customizing, and deploying cognitive architectures and multi-agent systems.
13
Also covers frameworks · same kind of online tool · open source
Haystack provides modular building blocks for agentic, context engineered AI systems.
14
Epsilla
epsilla.comAlso covers frameworks · same kind of online tool
Epsilla lets enterprises build, deploy, and manage customized AI agents without coding.
15
Also covers frameworks · open source
The open-multi-agent project provides a self-hosted TypeScript runtime with approvals and verifiable records.
16
Also covers frameworks · open source
Mindstorm explores language-based societies of mind and multi-agent systems.
17
Also covers frameworks · open source
The MetaGPT repository provides a multi-agent framework for natural language programming and software development.
18
Also covers frameworks · open source
SwarmClaw provides a self hosted runtime and multi agent framework with memory, tools, schedules, and delegation.
19
Also covers frameworks · open source
Educational framework exploring ergonomic, lightweight multi-agent orchestration. Managed by OpenAI Solution team.
20
Also covers frameworks · open source
MateClaw combines multi-agent orchestration, MCP, skills, memory, and multi-channel support.
21
Also covers frameworks · open source
The MetaGPT repository presents a multi-agent framework for natural language programming.
22
OpenAI Agents SDK
openai.github.io/openai-agents-pythonAlso covers frameworks
The OpenAI Agents SDK provides tools for developers building applications with agentic AI.
23
Uplizd Unicorn
unicorn.uplizd.aiAlso covers frameworks
Uplizd Unicorn offers visual AI tools for startups and small businesses to build and optimize business content.
24
Ability AI
ability.aiAlso covers frameworks
Ability.ai is an applied AI lab focused on sovereign agentic systems, including its Cornelius and Trinity projects.
No alternatives match this filter.
Alternatives to similar tools
open-multi-agent24 alternativesUplizd Unicorn24 alternativesWeb24 alternativesHive24 alternativesMicrosoft Agent Framework24 alternativesStrands Agents SDK24 alternatives
What is the best alternative to FastAgency?
Based on features, tags and platforms, the closest alternatives to FastAgency are Microsoft Agent Framework, CrewAI, and MindPal.
Are there open-source alternatives to FastAgency?
Yes: Strands Agents SDK, llama-agents, Hive, and Haystack.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative