Terratest is a Go library that makes it easier to write automated tests for your infrastructure code.
AWS SDK for the Go programming language.
Go library for the Stripe API.
Simple HTTP and REST client library for Go
Sarama is a Go library for Apache Kafka 0.8, and up.
stripe-mock is a mock HTTP server that responds like the real Stripe API. It can be used instead of Stripe's testmode to make test suites integrating with Stripe faster and less brittle.
Go library for the Cloudflare v4 API
Go client for Rollbar
smocker is a simple and efficient HTTP mock server.