A2A Support similiar to mcp?

[DracoBlue]

What do you think about having a2a agent's https://google.github.io/A2A/ integrated similiar to a way how mcp tools https://ai-sdk.dev/docs/ai-sdk-core/tools-and-tool-calling#mcp-tools are currently integrated?

[edit]: I started a a2a provider at https://github.com/DracoBlue/a2a-ai-provider for v5 of the ai sdk

[edobrb]

I was thinking about the same thing.

I imagine an usage like this where the SDK handles the communication with the agents and tools.

const mcpClient = await createMCPClient({
  transport: { type: 'sse', url: 'https://example.com/sse' },
})
const tools = await mcpClient.tools()

const agentClient = await createAgent({
  url: 'https://example.com/.well-known/agent.json',
})
const agent = await agentClient.getAgent()

const result = await generateText({ model, tools, agents: { agent1: agent }, messages: [...] })

// ...

Maybe it's still early, at the moment A2A allows maximum one agent per domain by using the /.well-known/agent.json path for the agent discovery card.
There are some open issues on the repository that points that out, someone is suggesting to support multiple agents under the same domain [1], [2]

[DracoBlue]

I started an effort to make a custom ai provider at https://github.com/DracoBlue/a2a-ai-provider for making things like this possible in v5 of ai sdk:

import { a2a } from "a2a-ai-provider";
import { generateText } from "ai"

const result = await generateText({
  model: a2a('https://your-a2a-server.example.com'),
  prompt: 'What is love?',
});

console.log(result.text);

I kind of like it :)!

[lgrammel]

can you convert into an issue? there may already be one

[DracoBlue]

There is an a2a ticket created lately at #7442

[DracoBlue]

I attached the discussion to #7442