Resources for A2A Developers
Learn about the A2A Protocol, explore our guides, and access everything you need to build secure AI agents.
What is the A2A Protocol?
Think of it as "HTTP for AI agents"
The A2A (Agent-to-Agent) Protocol is an open standard for AI agent interoperability, originally developed by Google and now governed by the Linux Foundation with support from 50+ industry partners.
Just as HTTP enabled different websites to communicate, A2A enables different AI agents to work together securely and reliably.
Key Components
- Agent Card
Like a business card for your agent - declares identity, capabilities, and authentication details.
- Transport Protocols
JSONRPC, HTTP+JSON, or gRPC - choose what fits your needs.
- Cryptographic Signatures
JWS/JWKS ensure authenticity - know who you're talking to.
- Capability Declaration
Clear declaration of what the agent can do - no guesswork.
Why A2A Matters
- ✓Interoperability
Agents from different vendors work together
- ✓Standardization
Common expectations reduce integration friction
- ✓Security
Cryptographic signatures built into the standard
- ✓Ecosystem
Growing marketplace of compatible agents
Industry Support
The A2A Protocol is backed by leading technology companies and open source foundations:
How CapiscIO Supports A2A
We build tools FOR the protocol, not the protocol itself.
Validate A2A protocol compliance locally - catch issues before deployment.
- ✓Validate Agent Card structure
- ✓Verify JWS/JWKS signatures
- ✓Check capability declarations
- ✓CI/CD integration
Enforce A2A runtime security - protect your agents in production.
- ✓Runtime signature verification
- ✓Request/response validation
- ✓Policy enforcement
- ✓Security event streaming
Verify A2A cryptographic signatures - trust what you integrate.
- ✓Trust Badge API (verify any agent)
- ✓Agent Registry (discover verified agents)
- ✓Security Dashboard (monitor your agents)
- ⏳Coming Q1 2026
Transparent, auditable, community-driven tools.
- ✓MIT License (CLI)
- ✓Apache 2.0 (Middleware)
- ✓CC BY 4.0 (Documentation)
- ✓Free forever for developers
Start Building Trusted Agents Today
Start with our free CLI to ensure your agent is A2A compliant.