Welcome to KillB API
The KillB API is a REST API that enables cryptocurrency on-ramps and off-ramps across Latin America. Convert between fiat currencies (COP, MXN, USD) and cryptocurrencies (USDC, USDT) with ease.Base URLs
- Sandbox
- Production
Authentication
All API requests require authentication:Authentication Guide
Learn how to authenticate with the API
API Structure
The KillB API is organized into the following resources:| Resource | Description | Base Path |
|---|---|---|
| Auth | Login and token management | /api/v2/auth |
| Users | User management and KYC | /api/v2/users |
| Accounts | Bank accounts and wallets | /api/v2/accounts |
| Ramps | On/off-ramp transactions | /api/v2/ramps |
| Quotations | Price quotes | /api/v2/quotations |
| Savings | Custodial accounts | /api/v2/savings |
| Webhooks | Event notifications | /api/v2/webhooks |
| Customers | Customer management | /api/v2/customers |
| Banks | Bank information | /api/v2/banks |
Making Requests
Request Format
All requests use JSON:Response Format
Successful responses return JSON with relevant data:Pagination
List endpoints support pagination:Idempotency
UseexternalId field for idempotent operations:
Testing
Use sandbox environment for testing:API Explorer
Explore the complete API reference using the navigation on the left. Each endpoint includes:- Request/response schemas
- Code examples
- Parameter descriptions
- Error responses