---
title: "HTTP API Reference"
description: >-
  Complete HTTP API reference for Express Relay endpoints, including opportunities, bids, and configuration.
---

## Interactive API Documentation

The complete HTTP API reference is available as an interactive Swagger/OpenAPI documentation:

**Production (Mainnet):**  
[https://per-mainnet.dourolabs.app/docs](https://per-mainnet.dourolabs.app/docs)

**Staging (Testing):**  
[https://per-staging.dourolabs.app/docs](https://per-staging.dourolabs.app/docs)

## Base URLs

Use the appropriate base URL for your environment:

- **Production (Mainnet):** https://per-mainnet.dourolabs.app
- **Staging (Testing):** https://per-staging.dourolabs.app
