swagger-combine

Combines multiple Swagger/OpenAPI 2.0 schemas into a single dereferenced schema. Version 1.4.0 is the latest stable release, with no recent updates; the package is in maintenance mode. Key differentiators: supports merging APIs from local files, URLs, and objects; provides both Promise and callback APIs; includes Express middleware for serving the combined schema; and offers a CLI for quick merging. Unlike alternatives like swagger-merger or api-spec-converter, it focuses purely on combining Swagger 2.0 specs without transformation to OpenAPI 3.