Platform team connecting internal AI agents to third-party agents
Use the A2A protocol to let your AI employees collaborate with external agents as peers, not just tools.
Connect to A2A Agents
Connect to external A2A agents so your employee can delegate tasks to other AI agents across the ecosystem.
Your employees can reach out to other AI agents using Google's Agent-to-Agent (A2A) protocol. Discover external agents, understand their capabilities, send them tasks, and receive structured results back. Your workforce collaborates with AI agents beyond your organization.
This enables multi-agent workflows that span systems. Your research employee discovers a specialized data analysis agent, sends it a dataset, and incorporates the results into a report. Your sales employee finds a lead enrichment agent, sends a company name, and gets back detailed firmographic data. Agent-to-agent collaboration, not just tool calling.
A2A connections are scoped per employee, just like MCP. Your engineering employee talks to code review agents. Your marketing employee talks to content analysis agents. Each employee connects to the agents relevant to its role.
Plug Into the Broader Agent Ecosystem
Agent-to-Agent (A2A) is Google's open protocol for AI agents to communicate and delegate tasks to each other across different platforms and vendors. Sistava supports A2A, meaning your AI employee can connect to and delegate work to external AI agents built on any A2A-compatible system.
This is the foundation of true multi-agent orchestration across organizational boundaries. Your AI employee does not have to do everything itself. It can identify the right external agent for a specialized task and delegate to it, just as a human would route work to a specialist.
Delegate Without Losing Control
When your AI employee delegates to an A2A agent, it sends a structured task, waits for a result, and incorporates that result into its broader workflow. The whole interaction is logged and visible to you, so you always know what was delegated and what came back.
Your employee remains the orchestrator. It decides when to delegate, which external agent to use, and how to use the response. You retain full visibility and control over the overall workflow even when third-party agents are involved.
Future-Proof Integration with the Agent Internet
A2A is rapidly becoming the standard handshake protocol for autonomous agents across the industry. By supporting A2A today, Sistava positions your AI workforce to interoperate with the growing ecosystem of specialized agents being built by Google, Salesforce, SAP, and hundreds of other vendors.
As the A2A ecosystem matures, your AI employees gain access to more specialist agents without any additional setup. Connecting to the agent ecosystem through an open standard means your investment in Sistava compounds over time.
Use Cases
Enterprise team building a multi-agent workflow across systems
Internal AI employees delegate to external A2A agents and get results back. Complex workflows span systems automatically.
Product team integrating a specialized external agent into their workforce
Connect a third-party A2A agent as a capability. Your AI employee calls on it when the task demands it.
Developer building an interoperable AI workforce
A2A makes your agents and external agents speak the same language. Collaboration happens without custom glue code.
Comparison
| Before | After |
|---|---|
| AI agents from different platforms cannot communicate with each other. | A2A protocol lets your AI employees work alongside any compatible agent. |
| Integrating external agents requires custom API work every time. | A2A is a standard protocol, connect compatible agents immediately. |
| Multi-agent workflows break at system boundaries. | A2A bridges systems so the workflow continues uninterrupted. |
| Specialized external agents sit unused because they can't connect. | Any A2A-compatible agent becomes part of your workforce. |
FAQ
What is the A2A protocol?
A2A (Agent-to-Agent) is an open protocol developed by Google that defines how AI agents from different platforms can communicate, delegate tasks, and share results. It enables interoperability across the growing ecosystem of AI agents.
Which A2A agents can my Sistava employee connect to?
Any agent that implements the A2A protocol. This includes agents built on Google's Agent Development Kit, and any other A2A-compatible system. The list of compatible agents grows as the ecosystem adopts the standard.
Can I see what my AI employee delegated to an external A2A agent?
Yes. All A2A interactions are logged in the conversation history, including the task sent, the external agent's response, and how your AI employee used that response in the broader workflow.
Does using A2A agents affect my billing?
Sistava bills based on your AI employee's activity. Delegating to an A2A agent counts as tool usage by your employee. Any costs charged by the external A2A agent are separate and governed by that agent's provider.
Can my Sistava agent collaborate with AI agents from other platforms?
Yes. The A2A protocol allows your AI employee to communicate and delegate tasks to agents built on other systems that support the standard. This makes cross-platform multi-agent workflows possible.
Our Sista agent now delegates legal review tasks to an external compliance agent automatically. We cut review turnaround from three days to a few hours.