# Validation helpers [](https://travis-ci.org/go-openapi/validate) [](https://ci.appveyor.com/project/fredbi/validate/branch/master) [](https://codecov.io/gh/go-openapi/validate) [](https://slackin.goswagger.io) [](https://raw.githubusercontent.com/go-openapi/validate/master/LICENSE) [](https://pkg.go.dev/github.com/go-openapi/validate) [](https://goreportcard.com/report/github.com/go-openapi/validate) This package provides helpers to validate Swagger 2.0. specification (aka OpenAPI 2.0). Reference can be found here: https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md. ## What's inside? * A validator for Swagger specifications * A validator for JSON schemas draft4 * Helper functions to validate individual values (used by code generated by [go-swagger](https://github.com/go-swagger/go-swagger)). * Required, RequiredNumber, RequiredString * ReadOnly * UniqueItems, MaxItems, MinItems * Enum, EnumCase * Pattern, MinLength, MaxLength * Minimum, Maximum, MultipleOf * FormatOf [Documentation](https://godoc.org/github.com/go-openapi/validate) ## FAQ * Does this library support OpenAPI 3? > No. > This package currently only supports OpenAPI 2.0 (aka Swagger 2.0). > There is no plan to make it evolve toward supporting OpenAPI 3.x. > This [discussion thread](https://github.com/go-openapi/spec/issues/21) relates the full story. > > An early attempt to support Swagger 3 may be found at: https://github.com/go-openapi/spec3