TechAtelier
APICHECK

Validate a specification OpenAPI or Swagger

Control the structure, authentication mechanisms and documentary quality of the contract before generating a client or publishing the API.

A document OpenAPI can be readable by a tool while remaining incomplete for teams that must integrate it. The answers, diagrams and safety rules deserve a dedicated control.

What the validator examines

  • version OpenAPI or Swagger and root structure;
  • paths, operations, parameters and transaction identifiers;
  • documented answers and useful error codes;
  • declared and applied safety schemes;
  • HTTPS servers and consistency of internal references;
  • consumer summaries, descriptions and examples.

Monitoring in the development cycle

  1. Validate the contract locally before code review.
  2. Export the SARIF result to integrate it into the IC.
  3. Block delivery on alerts actually incompatible with your policy.
  4. Test separately the implementation against the published contract.

Validate YAML or JSON

APICheck refuses external references and does not call any server described in the contract.

Validate my contract OpenAPI

Control limits

Static analysis does not confirm that the deployed API actually complies with the contract. It does not replace contract tests, authorisation tests or load tests.

See the guide integrate validation OpenAPI predeployment.

Updated on 19 July 2026.