brex.io
Brex provides a spend management and business finance platform with corporate cards, expenses, travel, reimbursements, budgets, payments, and related financial operations. Its developer offering lets customers and partners programmatically access account, team, expense, payment, transaction, travel, onboarding, webhook, field, budget, and accounting data.
Brex exposes authenticated REST APIs at https://api.brex.com with multiple product-specific OpenAPI documents, plus a Brex MCP server at https://api.brex.com/mcp; no public GraphQL API or first-party CLI was found.
- Brex MCP serverdetected
- Brex REST APIsdiscovered
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. Choose the scopes you need, confirm with Allow Access, and copy the token once shown. Brex says you won't be able to view it again; revoke and recreate it if lost.
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 · 0/8 published
- integrations.json✗
/.well-known/integrations.json - llms.txt✗
/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