
Google Antigravity
AgentShelf
Agent Project Manager by philippepascal
Mastra
Agent.ai
Linear
Agent Intelligence
Build Multi-Agent Systems with Google's Open Framework

LangChain
Dify.AI
Google Antigravity
Respan
Peargent
OpenAI Universe
Netmind Power
Agent engineering blueprint for building your own agent sdk

Which is more popular?
Based on our record, Agent Development Kit seems to be more popular. It has been mentioned 32 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | google.github.io | github.com |
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An editorial look at what each product does well and who it suits.


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Why this product is good
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Overall verdict
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Agent Development Kit and Pixelagent. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


A few terms, since the table moves fast. ADK, Google's Agent Development Kit, is the framework the agent is written in. Firestore is the database holding the hackathons. A2UI is a format that lets an agent send back interface pieces,... - Source: dev.to / 20 days ago
The conversion is where the work turned out to be. Agentevals wants a flat list of OpenAI-format chat messages. Kagent records what its agents do as Google ADK events. Getting from one to the other is not a field rename, and three of the... - Source: dev.to / 21 days ago
First, ADK is genuinely multi-model. It supports Gemini, Gemma, Claude (via Vertex), Ollama, vLLM, LiteLLM, and LiteRT-LM. You're not locked into Gemini. You can route different agent tasks to different models based on cost, latency, or... - Source: dev.to / 4 months ago
Tracking Pixelagent since May 2025.
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The TypeScript agent framework with workflows, memory, streaming, an interactive playground, evals, and tracing.
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