Altair GraphQL Client vs ReadMe

Altair GraphQL Client is an open-source GraphQL IDE for sending queries, mutations, and subscriptions to GraphQL APIs. It provides features like query autocompletion, schema documentation browsing, environment variables, and request collections. The client is available as a desktop application, browser extension, and web app.

ReadMe is Developer hub platform that turns OpenAPI specs into interactive documentation with usage analytics.. It is available under a freemium model. This tool falls under the api tools category.