Pirate Ship offers easy USPS shipping with discounts up to 87% off retail...

https://simonoaeq490.yousher.com/does-pirate-ship-have-an-api-for-custom-fulfillment-workflows

Pirate Ship offers easy USPS shipping with discounts up to 87% off retail rates, perfect for small sellers who want simple, low-cost options. Just note they only support email help and don’t offer DHL Express