BuildBear API Documentation
Comprehensive reference for BuildBear’s Sandbox and Explorer APIs: REST and JSON-RPC endpoints to manage sandboxes, fork networks, snapshots, and query on-chain data.
Authentication
All BuildBear API calls require a bearer token in the header:
API Keys Management
Create API Keys and manage them on BuildBear's Dashboard
Sandbox API
Create sandboxes and manage them via API Endpoints
Explorer API
Get source-code, verification status and ABIs for verified contracts via API Endpoints
Custom RPC Methods
Utilize RPC Endpoints for Sandbox RPCs to get Native and ERC20 faucet funds, create sandbox snapshots, etc.
Error Handling
The API can return various error responses depending on the situation. Below are the common error codes and their meanings:
200 OK: The request was successful.400 Bad Request: The request was malformed or missing required parameters.401 Unauthorized: Authentication credentials were missing or invalid.429 Too Many Requests: The rate limit was exceeded.