ATA API Governance vs Zally

ATA API Governance centralizes API ownership, specifications, compliance, lifecycle management and dependencies across teams. Its inventory records APIs by endpoint, method, version, exposure type, owning team and deployment environment. Lifecycle tracking runs from draft through deprecated and supports multiple versions. A visual dependency tree connects API owners with consumer teams, projects and services to help identify change impacts. Teams can set custom rules for OpenAPI structure, methods, naming, headers and security standards, with real-time feedback on violations. Reusable schemas flag mismatches, while a dashboard reports common security protocols, potential PII exposure and APIs missing required schemas. Ask AI answers questions about projects, APIs, governance rules, schema use and versions. ATA offers web, desktop and Linux options, an npm command-line package, local and server agents, and a browser extension. Free access includes 30 API Governance endpoints; paid tiers increase limits, while Enterprise limits are custom. ATA states its services are not designed for HIPAA, FISMA or GLBA compliance.

Zally is an API linter and quality assurance tool for OpenAPI specifications. It supports OpenAPI 3 and Swagger OpenAPI 2, with a RESTful API, command-line interface, and web interface. Its standard configuration checks APIs against Zalando’s RESTful Guidelines, and the project says it can also be used out of the box by others. Teams can enable or disable server-side rules, configure some existing rules, or implement their own in Kotlin. An API definition can use the x-zally-ignore extension to disable rules for that API. The web interface lists implemented rules and can lint external files and API definitions in its online editor. The project describes starting the web UI, server, and database together using Docker Compose. It also lists an unofficial Zally Maven Plugin integration. Maintained by Zalando, Zally is offered under an MIT license with an exception. Its Open source plan costs nothing.