Quickstart

• .NET v.10 or higher. Install or upgrade from dotnet.microsoft.com.

• Python v3.12 or higher. Install or upgrade from python.org/downloads.

• Node.js v.20 or higher. Install or upgrade from nodejs.org.

teams
project new csharp quote-agent --template echo

teams
project new python quote-agent --template echo

teams
project new typescript quote-agent --template echo

1. Creates a new directory called QuoteAgent.
2. Bootstraps the echo agent template files into your project directory.

1. Creates a new directory called quote-agent.
2. Bootstraps the echo agent template files into it under quote-agent/src.

1. Navigate to your new agent's directory:

cd
QuoteAgent/QuoteAgent

1. Install the dependencies:

dotnet
restore

1. Start the development server:

dotnet
run

Navigate to your new agent's directory:

cd
quote-agent

Create and activate a virtual environment, then install the dependencies:

python
-m venv .venv
# Activate it: `source .venv/bin/activate` (macOS/Linux) or `.venv\Scripts\activate` (Windows)
pip install -e .

Start the development server:

python
src/main.py

1. Navigate to your new agent's directory:

cd
quote-agent

1. Install the dependencies:

npm
install

1. Start the development server:

npm
run dev

1. In the console, you should see a similar output:

INFO] Microsoft.Hosting.Lifetime Now listening on: http://localhost:3978
[INFO] Microsoft.Hosting.Lifetime Application started. Press Ctrl+C to shut down.
[INFO] Microsoft.Hosting.Lifetime Hosting environment: Development

In the console, you should see a similar output:

INFO] @teams/app Successfully initialized all plugins
[INFO] @teams/app.HttpPlugin Starting HTTP server on port 3978
INFO:     Started server process [6436]
INFO:     Waiting for application startup.
[INFO] @teams/app.HttpPlugin listening on port 3978 🚀
[INFO] @teams/app Teams app started successfully
INFO:     Application startup complete..
INFO:     Uvicorn running on http://0.0.0.0:3978 (Press CTRL+C to quit)

1. In the console, you should see a similar output:

 quote-agent@0.0.0 dev
> tsx watch -r dotenv/config src/index.ts

[WARN] @teams/app No credentials configured and skipAuth is not enabled. All incoming requests will be rejected. Configure client authentication to securely receive messages, or set skipAuth: true for local development.
[INFO] @teams/app listening on port 3978 🚀

The HTTP server is now listening on port 3978. To test your agent locally without sideloading it into Teams, use the Microsoft 365 Agents Playground.

The playground sends unauthenticated requests, which a default builder.AddTeams() rejects when no credentials are configured. For local testing, enable skipAuth so your agent accepts them:

title="Program.cs"
builder.AddTeams(skipAuth: true);

Install the playground globally:

npm
install -g @microsoft/m365agentsplayground

Then, with your agent still running, open a second terminal and launch the playground pointed at your agent:

agentsplayground
-e http://localhost:3978/api/messages -c emulator

The playground opens at http://localhost:56150. Send a message in the compose box and your agent's reply renders inline.

The HTTP server is now listening on port 3978. To test your agent locally without sideloading it into Teams, use the Microsoft 365 Agents Playground.

The playground sends unauthenticated requests, so a default App() will reject them (you'll see the No credentials configured warning above). For local testing, enable skip_auth so your agent accepts them:

title
"src/main.py"
app = App(skip_auth=True)

Install the playground globally:

npm
install -g @microsoft/m365agentsplayground

Then, with your agent still running, open a second terminal and launch the playground pointed at your agent:

agentsplayground
-e http://localhost:3978/api/messages -c emulator

The playground opens at http://localhost:56150. Send a message in the compose box and your agent's reply renders inline.

The HTTP server is now listening on port 3978. To test your agent locally without sideloading it into Teams, use the Microsoft 365 Agents Playground.

The playground sends unauthenticated requests, so a default new App() will reject them (you'll see the No credentials configured warning above). For local testing, enable skipAuth so your agent accepts them:

title
"src/index.ts"
const app = new App({ skipAuth: true });

Install the playground globally:

npm
install -g @microsoft/m365agentsplayground

Then, with your agent still running, open a second terminal and launch the playground pointed at your agent:

agentsplayground
-e http://localhost:3978/api/messages -c emulator

The playground opens at http://localhost:56150. Send a message in the compose box and your agent's reply renders inline.

pip
install microsoft-teams-apps

npm
i @microsoft/teams.apps

import
asyncio
import uvicorn
from fastapi import FastAPI
# highlight-next-line
from microsoft_teams.apps import App, FastAPIAdapter

# Your existing FastAPI app
my_fastapi = FastAPI()

# highlight-start
# Wrap your app in an adapter and create the Teams app
adapter = FastAPIAdapter(app=my_fastapi)
app = App(http_server_adapter=adapter)

@app.on_message
async def handle_message(ctx):
    await ctx.send(f"You said: {ctx.activity.text}")
# highlight-end

async def main():
    # highlight-next-line
    await app.initialize()  # Register the Teams endpoint (does not start a server)

    # Start your server as usual
    config = uvicorn.Config(app=my_fastapi, host="0.0.0.0", port=3978)
    server = uvicorn.Server(config)
    await server.serve()

asyncio.run(main())

import
http from 'http';
import express from 'express';
// highlight-next-line
import { App, ExpressAdapter } from '@microsoft/teams.apps';

// Your existing Express server
const expressApp = express();
const server = http.createServer(expressApp);

// highlight-start
// Wrap your server in an adapter and create the Teams app
const adapter = new ExpressAdapter(server);
const app = new App({ httpServerAdapter: adapter });

app.on('message', async ({ send, activity }) => {
  await send(`You said: ${activity.text}`);
});

// Register the Teams endpoint on your server (does not start it)
await app.initialize();
// highlight-end

// Start your server as usual
server.listen(3978);

See the HTTP Server guide for full details on adapters and custom server setups.

• Microsoft 365 Agents Playground