18.1
Free planOpen sourceAPIExtensionLinux
Alternatives to ATA API Governance
ATA API Governance helps teams keep API ownership, specifications, policies, and dependencies in one place. Its inventory records endpoints, versions, exposure, owners, and deployment status; lifecycle tracking covers draft through deprecated APIs and multiple versions. Teams can set OpenAPI rules, reuse schemas, see real-time violations, and map consumers and services to assess change impacts. Security insights flag potential PII exposure and APIs missing required schemas,…
27.5
Postman is a platform for designing, testing, distributing, documenting, and monitoring APIs.
Free planWebExtensionLinux
37.2
oasdiff compares OpenAPI specifications, creates changelogs, and flags breaking changes before release.
Free planWebAPILinux
- 4
DigitalAPI
DigitalAPI brings APIs from different gateways into a shared catalogue for developers, partners, and AI agents.
WebAPISelf-hosted7.1From $2,500 a month - 5
Routebase
Routebase is a hosted service for managing API design, mocking, testing, documentation, monitoring, and MCP capabilities from a shared specification.
Free planWebAPILinuxmacOS7.1From $9 a month - 6
SwaggerHub
SwaggerHub is a toolkit for API design, testing, documentation, and governance.
Free planWebSelf-hosted7.0From $61.67 a month - 7
Grapity
Grapity is an open-source API governance platform for teams managing API contracts and changes that could affect consumers.
Free planWebLinuxmacOSSelf-hosted6.9From $29.95 a month - 8
Redocly
WebAPIExtension6.9From $10 a month - 9
Apiway
Apiway is an end-to-end platform for taking APIs from design through production and customer use.
Free planWebAPISelf-hosted6.6From €1,000 a month - 10
CodeRifts
CodeRifts gives API teams a way to govern and authorize contract changes, including changes proposed by AI agents.
Free planWebAPI6.6From $149 a month - 11
Zally
Zally is an API linter and quality assurance tool for OpenAPI specifications.
Free planWebAPILinuxmacOS6.6Free plan - 12
API Architect
API Architect is a web product for describing software architecture, business rules, APIs, and AI governance in a shared executable DSL.
Free planWeb6.5From €29 a month - 13
Apistaq
Apistaq is an API governance control plane that turns OpenAPI specifications into version controls, rate-limit policies, SDKs, and a developer portal.
Free planWebAPI6.5From $149 a month - 14
TeejLab API Discovery and Lifecycle Manager
TeejLab API Discovery and Lifecycle Manager is a paid web and API platform for enterprise API discovery, security, and governance.
WebAPI6.4 - 15
Apigee API hub
Apigee API hub brings an organization’s API information into a catalog for API consumers, producers, and platform teams to discover, assess, organize, and manage.
Free planWebAPI6.2Free plan - 16
SpecLayer
SpecLayer provides SpecDoc for managing OpenAPI specifications as code, applying governance in CI/CD, and publishing developer portals.
WebAPI6.1From $29 a month - 17
vacuum
Vacuum is a free, open-source linter and quality checker for OpenAPI, AsyncAPI, and JSON Schema specifications.
APIExtensionLinuxmacOS6.1 - 18
API Validator
API Validator is a free, open-source browser application for checking API descriptions against a Spectral-powered governance ruleset.
WebSelf-hosted5.6 - 19
Azure API Center
Azure API Center is a web service for organizing and governing APIs through their lifecycle.
Free planWeb5.6Free plan - 20
Google API Linter
Google API Linter checks API surfaces defined in Protocol Buffers against Google API standards set out in API Improvement Proposals.
Free planSelf-hosted5.6Free plan - 21
Wag-Tail API Collaboration Portal
Wag-Tail API Collaboration Portal is a paid, self-hosted and web-based system for enterprise API teams.
WebSelf-hosted5.3