No. 19 of 38 ·API Monetization Software

WSO2 API Designer

Web · Windows · Mac · Linux · Extension · paid plans from $119/mo

Freedom report

Two barsScore 5.2

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely4 of 6 device platforms
DocumentedPlans, terms and facts published

WSO2 API Designer is ranked #19 of 38 in API monetization software on Freedom251. It runs on Browser extension, Linux, macOS, Web, Windows. There is no free plan. A free trial is offered. Paid plans start at $119/mo.

WSO2 API Designer plans and pricing

All plans

30-Day Trial Free 5 Managed Interfaces · 10M Gateway Events · API Designer available wso2.com · 3 Oct 2026

Growth $119/mo from $119 /mo Up to 10 Managed Interfaces · Up to 10M Gateway Events · API Designer available wso2.com · 3 Oct 2026

Enterprise Not published Custom Custom limits · Self-hosted available · Federation · Private Data Plane · Enterprise Support · API Designer available wso2.com · 3 Oct 2026

Compared on API monetization software

Free plan: No
OpenAPI support: Yes

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The record

Purpose: API Designer is a Visual Studio Code extension for building and improving OpenAPI specifications.
AI design: The extension includes an API Design Skill that works with GitHub Copilot to draft API specifications from prompts.
Visual editing: Design view displays API resources, operations, and reusable components and supports form-based editing of operations and schemas.
Specification format: API Designer supports creating and improving OpenAPI 3.x specifications and opens YAML or JSON specification files.
Governance: It checks specifications with bundled Spectral rulesets for WSO2 AI readiness, WSO2 REST API design guidelines, and OWASP API Security Top 10.
AI readiness: AI-assisted analysis combines rule-based results with narrative feedback about specification issues that can affect agents and tools.
Custom rules: Users can point the extension to a custom ruleset folder using a GitHub folder URL or an absolute local directory path.
Integration: GitHub Copilot is optional and recommended for AI-assisted workflows; the extension can be installed from the VS Code Marketplace.
Requirement: The documented VS Code prerequisite is compatibility with extension engine requirement ^1.100.0.
Support: The documentation directs users to WSO2’s official Discord community for help and discussion.
Security note: WSO2’s API Designer guidance warns that security findings may require real URLs, policies, or authorization server metadata and advises against inventing production values with AI.
Maker security: WSO2 states that it is ISO 27001:2022 certified and SOC 2 Type 2 compliant.
Intended users: WSO2 describes its 30-day trial as ideal for students and individual developers, and its Growth plan as intended for small to mid-sized businesses with basic API management needs.
Founded: 2005
Price from: $119/mo

Where it ranks on Freedom251

Best API Monetization Software in 2026#19 of 38
Best API Developer Portal Software in 2026#17 of 33
Best API Management Software in 2026#20 of 30
Best API Marketplace Software in 2026#21 of 29
Best API Design Tools in 2026#20 of 26

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Sources

wso2.com/api-platform/docs/tools/vscode-api-desi· checked 3 Oct 2026
wso2.com/api-platform/docs/tools/vscode-api-desi· checked 3 Oct 2026
wso2.com/api-platform/docs/tools/vscode-api-desi· checked 3 Oct 2026
wso2.com/security/· checked 3 Oct 2026
wso2.com/api-platform/pricing/· checked 3 Oct 2026