RESTCov: A Tool for Structural Coverage Analysis of REST APIs

• URL: http://arxiv.org/abs/2608.28114v1
• Date: Fri, 28 Aug 2026 09:23:36 GMT
• Title: RESTCov: A Tool for Structural Coverage Analysis of REST APIs
• Abstract summary: RESTCov is a tool that computes structural REST API coverage from an OpenAPI specification.<n>It produces both machine-readable results and a human-readable HTML report.
• Score: 0.6445605125467572
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: REST APIs are widely used in modern software systems, but developers and testers often lack visibility into which parts of an API specification are exercised by a test suite. Traditional coverage analysis usually relies on source-code instrumentation, which is impractical for REST APIs that are distributed, externally maintained, and hence accessible only through black-box execution. This paper presents RESTCov, a lightweight tool that computes structural REST API coverage from an OpenAPI specification and observed HTTP request/response logs, reporting coverage across paths, operations, parameters, media types, status codes, and status classes. RESTCov produces both machine-readable results and a human-readable HTML report, helping users inspect coverage gaps, diagnose specification-log mismatches, and evaluate REST API test suites without requiring access to the implementation. Screencast: https://youtu.be/mNz2P43OyUc Repository: https://github.com/2tolgahan2/RESTCov

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