18.1
Free planOpen sourceAPIExtensionLinux
Alternatives to Routebase
Routebase ties API design and operations to one OpenAPI specification. Its visual editor handles endpoints, schemas, and versions; publishing a version creates a documentation portal and mock server, while tests and monitors check implementations against it. It also brings linting, lifecycle controls, review workflows, CI/CD integration, and an MCP server into that workflow. The free plan allows one user, two projects, and 1,000 mock requests per month; paid plans start at…
27.7
ATA API Governance centralizes API ownership, specifications, compliance, lifecycle management, and dependencies across teams.
Free planWebAPIExtension
37.5
Postman is a platform for designing, testing, distributing, documenting, and monitoring APIs.
Free planWebExtensionLinux
- 4
oasdiff
oasdiff compares OpenAPI specifications, creates changelogs, and flags breaking changes before release.
Free planWebAPILinuxmacOS7.2From $100 a month - 5
DigitalAPI
DigitalAPI brings APIs from different gateways into a shared catalogue for developers, partners, and AI agents.
WebAPISelf-hosted7.1From $2,500 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