# Brex

**Canonical:** https://apis.io/providers/brex/  
**APIs profiled:** 3

Brex is the first fully unified spend platform with global corporate cards, expense management, reimbursements, travel, and bill pay. Brex makes it easy for finance teams to control all of their spend, all in one place. Using the Brex API, you can power your internal tools and create custom workflows.

## Kin Score — 28.4 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 28.4).

| Facet | Score |
|---|---|
| Discoverability | 72.2 |
| Contract Quality | 59.9 |
| Governance | 11.4 |
| Contract Governance | 11.4 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

Regulatory layer — **Payments**: 18.8 (matched via tags).

## Agent readiness — 30.3 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | derived |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (3)

- **Brex Budget Programs API** — The Budget Programs API from Brex — 2 operation(s) for budget programs.
- **Brex Budgets API** — The Budgets API from Brex — 6 operation(s) for budgets.
- **Brex Spend Limits API** — The Spend Limits API from Brex — 3 operation(s) for spend limits.

## Agentic access (1)

- **Brex Agentic Access** — 17 operations · 9 acting

## Security (2)

- **Brex Authentication** — http · 1 scheme
- **Brex Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Brex Plans Pricing**

## Tags

Bill Pay, Corporate Cards, Expenses, Reimbursement, Spending

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/brex/). Scores are computed from the provider's own public artifacts under a published rubric.