AG UI without copilot-kit for production use

[spice crow]

Hello ! so I came across this point in docs.
https://docs.ag-ui.com/quickstart/clients#when-to-use-a-client-implementation

Building your own client is useful if you want to explore/hack on the AG-UI protocol. For production use, use a full-featured client like CopilotKit.

What other full-featured client is there ? And also any pointers on building custom client for production use ? Thanks !

[hollow shoal]

This solution has been AI generated

There are production-ready AG‑UI clients beyond CopilotKit. You can use the HttpAgent from @ag-ui/client (primary production client) and a specialized LangGraphHttpAgent for LangGraph-based agents. For building a custom client for production, extend AbstractAgent and follow the AG‑UI protocol with robust error handling, auth, and performance considerations.

Full‑featured clients

• HttpAgent (primary production client)

import { HttpAgent } from "@ag-ui/client";
const agent = new HttpAgent({ url: process.env.AGENT_URL || "http://localhost:8000/" });

• LangGraphHttpAgent (specialized for LangGraph agents)

import { LangGraphHttpAgent } from "@copilotkit/runtime";
const agent = new LangGraphHttpAgent({ url: process.env.LANGGRAPH_URL });

Building a custom client for production

• Start from AbstractAgent and implement the protocol-compliant methods.
• Add robust error handling, retries, and state sync.
• Support your auth model and consider connection pooling/perf.

import { AbstractAgent } from "@ag-ui/client";

class MyProdAgent extends AbstractAgent {
  async connect() {/* init transport/auth */}
  async send(message) {/* protocol-compliant send */}
  subscribe(handler) {/* event stream handling */}
}

Production tips

• Environment-based config for URLs/keys.
• Auth for managed platforms (e.g., LangGraph Platform).
• Load balancing via multiple endpoints or proxy.

References

• AG‑UI Protocol: https://docs.copilotkit.ai/ag-ui-protocol
• Examples (HttpAgent, multi‑agent):
  • AG2 Starter: https://github.com/CopilotKit/CopilotKit/tree/main/examples/ag2/starter
  • Research Canvas: https://github.com/CopilotKit/CopilotKit/tree/main/examples/coagents-research-canvas

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[spice crow]

Are there any examples of AG UI which doesn't use CopilotKit ? I know there is a CLI example in docs, but I am looking for more of a web application example ! thanks ! cc: @stable knoll

[hollow shoal]

Hi @spice crow, I don't have one readily available, but let me check with the team to see if we have something like that or can point you in the right direction.

I see you've already found the GitHub issue discussing this! Sharing the link here for anyone else who will be visiting this thread: #291

[spice crow]

Hi @stable knoll while that was helpful, i am more concerned about this point in the docs

Building your own client is useful if you want to explore/hack on the AG-UI protocol. For production use, use a full-featured client like CopilotKit

Since we are evaluating this for the org i am working at.

So thought if we have any official example it would be easy to refer and get an idea of what actually meets the production requirements.