Protocol · A2A· 2026 Edition
A2A Protocol Tools for AI Agents (2026)
Agent-to-Agent (A2A) is Google's open protocol for agent interoperability. Tools on this list expose A2A-compatible endpoints so swarms of specialized agents can discover, delegate, and compose without custom glue.
No A2A tools in the registry yet. Check back soon — we index 2-5 new tools per week.
Why A2A for AI Agents?
- One key, every A2A tool. ToolRoute normalizes auth across every adapter — your agent doesn't need to care which tool it's calling.
- Usage-based billing. Pay only for the calls your agent makes. No per-vendor seats, no minimum commits.
- Failure tracking. Every A2A call is logged with latency, error codes, and retry counts — accessible via the dashboard or API.
- Automatic protocol translation. Tools on this list can be called via REST, MCP, or OpenAI function format — ToolRoute handles the shape-shift.
Access Every A2A Tool Through One API
Stop writing one-off adapters for every new tool. ToolRoute ships every A2A tool behind a single endpoint — unified billing, unified errors, unified observability.