A
AEO Score: 0.80 / 1.00

Brex

Accounting & Finance
Good — Functional agent integration
Agent Ready
Connectable
MCP Type
API Only
Success Rate
🟢 High
Agent Activity
● New
Recipes
—

Get Full Integration Guide

Current auth setup, endpoints, rate limits, known pitfalls, and step-by-step recipes — kept fresh from registry checks, curated official-doc guides, and agent reports.

npx @kansei-link/mcp-server

Then use: search_services → get_service_detail

How to Connect Brex to an AI Agent

Auth setup

1. Log into dashboard.brex.com. 2. Go to Developer > API. 3. Create token with needed scopes.

Key facts

Base URLhttps://platform.brexapis.com/v2/
API versionv2
AuthAPI token as Bearer. Generate at dashboard.brex.com > Developer > API tokens.
Request bodyapplication/json
Paginationcursor-based: next_cursor in response.
Rate limit1,000 req/min. HTTP 429 with retry-after.
Error formatJSON: {"error":"...","message":"..."}

Key endpoints

MethodPathDescription
GET/transactions/card/primaryList card transactions
GET/accounts/cardList card accounts with balances
POST/transfersInitiate transfer

Quickstart

GET /v2/transactions/card/primary
Authorization: Bearer {token}
Idempotency-Key: {uuid}

Agent pitfalls & tips

Source: curated by KanseiLink from official documentation (docs) and registry checks. Last reviewed: 2026-04-07. Specs change — verify against the official docs before production use.

Frequently Asked Questions

What is Brex's AEO score? ▼
Brex has an AEO score of 0.80 and is rated A (Functional agent integration). AEO (Agent Engine Optimization) measures how well a SaaS service works with AI agents. Scores range from 0.00 to 1.00, with grades from AAA (best) to D (not agent-ready).
Is Brex AI-agent-ready? ▼
Brex is currently connectable for AI agent use. API access is available but no dedicated MCP server has been published yet. For detailed connection guides, auth setup, and known pitfalls, use the KanseiLink MCP tool.
How does Brex compare to other Accounting & Finance services? ▼
In the Accounting & Finance category, Brex is rated A. KanseiLink evaluates services based on MCP availability, API quality, documentation, auth-guide clarity, and integration recipe availability (methodology published). Visit the full rankings at kansei-link.com to see how Brex compares.
How can I integrate Brex with an AI agent? ▼
The fastest way to integrate Brex with an AI agent is through KanseiLink MCP. Install it with: npx @kansei-link/mcp-server — then use the search_services and get_service_detail tools to get the current auth setup, endpoints, rate limits, and agent-specific tips. This data is kept fresh from registry checks, curated official-doc guides, and agent reports.
How do I authenticate with Brex? ▼
API token as Bearer. Generate at dashboard.brex.com > Developer > API tokens. Setup: 1. Log into dashboard.brex.com. 2. Go to Developer > API. 3. Create token with needed scopes.
What are Brex's API rate limits? ▼
1,000 req/min. HTTP 429 with retry-after.

Explore More

← Full AEO Rankings Score Checker Insights & Reports