Google ADK
adk.dev
Open sourceMCPNo card
Google's open-source Agent Development Kit for Python and Java agents
- Free tier
- Yes
- Per month
- Free
- MCP
- Yes
Why it's here
Free Google agent toolkit with MCP and provider choice; hosting, scheduling and retrieval require assembly.
Free tier
ADK is free; Vertex AI Agent Engine usage is pay-as-you-go
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Last verified
Agent Frameworks
#9 of 26Free Google agent toolkit with MCP and provider choice; hosting, scheduling and retrieval require assembly.
| per month | Open sourceFreeSelf-host; model and infrastructure costs extra |
|---|---|
| Native agents | |
| Own LLM keys | |
| No usage meter | |
| Built-in RAG | |
| API & embed | |
| MCP tools | |
| Triggers | |
| Human approval | |
| Run logs |