brexapis.com
Brex provides a spend management and business finance platform with corporate cards, expenses, reimbursements, bill pay, travel, and business accounts. Its developer offering lets customers and partners automate account, payment, transaction, onboarding, accounting, and related workflows.
Brex exposes authenticated REST APIs at `https://api.brex.com` for customer and partner integrations, plus a beta MCP server at `https://api.brex.com/mcp`; no public GraphQL API or first-party CLI was found.
- Brex MCP serverdetected
- Brex Developer APIsdiscovered
Sign in to the Brex Dashboard as an account admin or card admin, go to Settings → Developer, accept the Developer API agreement if prompted, then click Create Token. Choose the scopes your app needs, confirm with Allow Access, and copy the token once; Brex only shows it once. Send it as Authorization: Bearer <token>.
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