Proxy Apps

Brex

Learn how to use Brex with Composio

Overview

SLUG: BREX

Description

Brex provides corporate credit cards, spend management, and financial tools tailored for startups and tech businesses to optimize cash flow, accounting, and growth

Authentication Details

client_id
stringRequired
client_secret
stringRequired
full
stringDefaults to https://platform.brexapis.comRequired
oauth_redirect_uri
stringDefaults to https://backend.composio.dev/api/v1/auth-apps/add
scopes
stringDefaults to openid,offline_access
bearer_token
string
generic_api_key
stringRequired

Connecting to Brex

Create an auth config

Use the dashboard to create an auth config for the Brex toolkit. This allows you to connect multiple Brex accounts to Composio for agents to use.

1

Select App

Navigate to Brex.

2

Configure Auth Config Settings

Select among the supported auth schemes of and configure them here.

3

Create and Get auth config ID

Click “Create Brex Auth Config”. After creation, copy the displayed ID starting with ac_. This is your auth config ID. This is not a sensitive ID — you can save it in environment variables or a database. This ID will be used to create connections to the toolkit for a given user.

Connect Your Account

Using OAuth2

1from composio import Composio
2
3# Replace these with your actual values
4brex_auth_config_id = "ac_YOUR_BREX_CONFIG_ID" # Auth config ID created above
5user_id = "0000-0000-0000"  # UUID from database/application
6
7composio = Composio()
8
9
10def authenticate_toolkit(user_id: str, auth_config_id: str):
11    connection_request = composio.connected_accounts.initiate(
12        user_id=user_id,
13        auth_config_id=auth_config_id,
14    )
15
16    print(
17        f"Visit this URL to authenticate Brex: {connection_request.redirect_url}"
18    )
19
20    # This will wait for the auth flow to be completed
21    connection_request.wait_for_connection(timeout=15)
22    return connection_request.id
23
24
25connection_id = authenticate_toolkit(user_id, brex_auth_config_id)
26
27# You can also verify the connection status using:
28connected_account = composio.connected_accounts.get(connection_id)
29print(f"Connected account: {connected_account}")

Using API Key

1from composio import Composio
2
3# Replace these with your actual values
4brex_auth_config_id = "ac_YOUR_BREX_CONFIG_ID" # Auth config ID created above
5user_id = "0000-0000-0000"  # UUID from database/app
6
7composio = Composio()
8
9def authenticate_toolkit(user_id: str, auth_config_id: str):
10    # Replace this with a method to retrieve an API key from the user.
11    # Or supply your own.
12    user_api_key = input("[!] Enter API key")
13
14    connection_request = composio.connected_accounts.initiate(
15        user_id=user_id,
16        auth_config_id=auth_config_id,
17        config={"auth_scheme": "API_KEY", "val": user_api_key}
18    )
19
20    # API Key authentication is immediate - no redirect needed
21    print(f"Successfully connected Brex for user {user_id}")
22    print(f"Connection status: {connection_request.status}")
23    
24    return connection_request.id
25
26
27connection_id = authenticate_toolkit(user_id, brex_auth_config_id)
28
29# You can verify the connection using:
30connected_account = composio.connected_accounts.get(connection_id)
31print(f"Connected account: {connected_account}")

Tools

Executing tools

To prototype you can execute some tools to see the responses and working on the Brex toolkit’s playground

Python
1from composio import Composio
2from openai import OpenAI
3import json
4
5openai = OpenAI()
6composio = Composio()
7
8# User ID must be a valid UUID format
9user_id = "0000-0000-0000"  # Replace with actual user UUID from your database
10
11tools = composio.tools.get(user_id=user_id, toolkits=["BREX"])
12
13print("[!] Tools:")
14print(json.dumps(tools))
15
16def invoke_llm(task = "What can you do?"):
17    completion = openai.chat.completions.create(
18        model="gpt-4o",
19        messages=[
20            {
21                "role": "user",
22                "content": task,  # Your task here!
23            },
24        ],
25        tools=tools,
26    )
27
28    # Handle Result from tool call
29    result = composio.provider.handle_tool_calls(user_id=user_id, response=completion)
30    print(f"[!] Completion: {completion}")
31    print(f"[!] Tool call result: {result}")
32
33invoke_llm()

Tool List

This app has actions coming soon! Feel free to raise a request for it in our GitHub Issues.

You can also create custom actions for the app using Composio Auth.