Brex | Composio Docs

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

OAuth2

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

API Key

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.

Select App

Navigate to the Brex toolkit page and click “Setup Integration”.

Configure Auth Config Settings

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

Create and Get auth config ID

Click “Create Integration”. 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

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

Using API Key

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

OpenAI (Python)

Anthropic (TypeScript)

Google (Python)

Vercel (TypeScript)

Python

1 from composio import Composio
2 from openai import OpenAI
3 import json
4 
5 openai = OpenAI()
6 composio = Composio()
7 
8 # User ID must be a valid UUID format
9 user_id = "0000-0000-0000"  # Replace with actual user UUID from your database
10 
11 tools = composio.tools.get(user_id=user_id, toolkits=["BREX"])
12 
13 print("[!] Tools:")
14 print(json.dumps(tools))
15 
16 def 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 
33 invoke_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.