Google Agent Development Kit
7.5#10 in ai agent platformsFree planFree planWebAPILinuxmacOS
VisitGoogle Agent Development Kit vs Vellum
What both publish
| Fact | Google Agent Development Kit | Vellum |
|---|---|---|
| Documentation depth | The documentation site includes getting-started guides, component references, deployment, observability, evaluation, safety, MCP, A2A and API references. | Developer documentation covers architecture, security, integrations, skills, browser automation, attachments, event streaming, deployment, SDKs, and API references. |
| Integrations | The integrations catalog includes tools and connectors for MCP, Google Cloud, databases, search, observability, and third-party services. | OAuth integrations include GitHub, Notion, Linear, Airtable, Spotify, Gmail, Google Calendar, Slack, and other services, while MCP servers provide additional tools. |
| Limit: learning curve | InfoWorld reports that ADK's extensive capabilities require substantial time and effort to learn. | A Capterra reviewer identifies a learning curve for Vellum's more advanced features. |
Google Agent Development Kit plans
- ADK frameworkFree
- Google Agent Development Kit (ADK)Free
Vellum plans
- BaseFree
- FreeFree
- Mighty$30 a month
- Custom$50 a month
- Super$100 a month
- Ultra$200 a month
Pick Google Agent Development Kit if…
ADK may suit developers building agents in one of its five supported languages, including projects that use hierarchical teams or local evaluations. Its deployment choices also suit teams targeting Google Cloud, containers, or local environments.
Pick Vellum if…
Vellum suits individuals seeking an assistant for files, calendars, email, code, and computer tasks. It is characterized as a personal assistant rather than a team or shared company tool.