brex.com
Brex provides business financial software including corporate cards, expense management, bill pay, banking, travel, and accounting workflows. Its platform is used by companies to control and automate spending and related finance operations.
Brex exposes a REST API at https://api.brex.com plus an OAuth-protected MCP server at https://api.brex.com/mcp; both can also use Brex-issued bearer tokens in some cases, and partner integrations use Brex-issued OAuth client credentials.
- Brex MCP serverdetected
- Brex REST APIdiscovered
Sign in to the Brex Dashboard as an account admin or card admin, open Settings → Developer, accept the developer API agreement if prompted, then click Create Token. Name the token, choose the scopes you need, confirm with Allow Access, and copy the token immediately because Brex only shows it once. This same token can also be used as an API key for the MCP server.
Point your MCP client at the server URL and approve access in the browser. The server supports OAuth Dynamic Client Registration (RFC 7591), so the client registers itself automatically — no developer-portal app, client_id, or client_secret to create.
conventions · 1/8 published
- integrations.json✗
/.well-known/integrations.json - llms.txt✓https://brex.com/llms.txt
- API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✗
/.well-known/oauth-protected-resource - Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing