google.github.io/adk-docs/a2a/ Alternatives

Best alternatives to google.github.io/adk-docs/a2a/

9 coding & dev tools tools that overlap with google.github.io/adk-docs/a2a/ on coding, developer, agent, ordered by how closely they match. Compare pricing, platforms, and API access, then jump into a side-by-side.

9alternatives

2free to try

2open source

At a glance

google.github.io/adk-docs/a2a/ vs 9

Tool	Pricing	Notes	Upvotes	Compare
google.github.io/adk-docs/a2a/This tool	Paid	-	-	-
Claude CodeAnthropic's agentic AI coding tool that lives in your terminal	Paid	CLI	-	-
CursorAI-first code editor built on VS Code with deep model integration	Paid	VS Code	-	-
OpenCodeTerminal-based AI coding agent powered by any LLM provider	Paid	CLIOpen source	-	-
Portia AIAgentic AI platform that plans and executes complex tasks reliably	Free	-	-	-
WindsurfAgentic AI IDE that codes alongside you in real time	Paid	-	-	-
PawseYour virtual pet which reacts to your work.	Freemium	WindowsMac	1	-
Build an AI Agent (From Scratch)Practical guide to designing and coding autonomous AI agents	Paid	-	-	-
DevinThe first fully autonomous AI software engineer for real tasks	Paid	CLI	-	-
Gemini CLIGoogle's open-source AI agent for coding tasks in the terminal	Paid	CLIOpen source	-	-

All 9 alternatives

Ranked by upvotes

Claude Code

Also does agent, like google.github.io/adk-docs/a2a/. Choose Claude Code if you need it on CLI, or if your work leans toward llm.

PaidCLI

Cursor

Also does agent, like google.github.io/adk-docs/a2a/. Choose Cursor if you need it on VS Code, or if your work leans toward autocomplete, ide, llm.

PaidVS Code

OpenCode

Also does agent, like google.github.io/adk-docs/a2a/. Choose OpenCode if you need to self-host or audit the source, or if you need it on CLI, or if your work leans toward llm.

PaidCLIOpen source

Portia AI

Also does agent, like google.github.io/adk-docs/a2a/. Choose Portia AI if you want something free outright.

Free

Windsurf

Also does agent, like google.github.io/adk-docs/a2a/. Choose Windsurf if your work leans toward ide.

Paid

Pawse

Also does agent, like google.github.io/adk-docs/a2a/. Choose Pawse if you want to start without paying, or if you need it on Windows or Mac, or if your work leans toward virtual pet, pet.

FreemiumWindowsMac1

Build an AI Agent (From Scratch)

Also does agent, like google.github.io/adk-docs/a2a/. Choose Build an AI Agent (From Scratch) if your work leans toward llm.

Paid

Devin

Also does agent, like google.github.io/adk-docs/a2a/. Choose Devin if you need it on CLI, or if your work leans toward debugging.

PaidCLI

Gemini CLI

Also does agent, like google.github.io/adk-docs/a2a/. Choose Gemini CLI if you need to self-host or audit the source, or if you need it on CLI, or if your work leans toward llm.

PaidCLIOpen source