OpenAPI Studio

Web · Self-hosted · paid plans from $9/mo

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

OpenAPI Studio is ranked #12 of 26 in API design tools on Freedom251. It runs on Self-hosted, Web. There is a free plan. A free trial is offered. Paid plans start at $9/mo.

OpenAPI Studio plans and pricing

All plans

Free Free forever 1 workspace · 3 members · 7-day execution history · public hotlinks · 1 MCP token/spec · 500 MCP requests/day · no GitHub or integrations openapistudio.app · 1 Oct 2026

Pro $9/mo monthly 3 workspaces · 3 members · 30-day execution history · private hotlinks · credential vault · 3 MCP tokens/spec · 2,000 MCP requests/day · no GitHub or integrations openapistudio.app · 1 Oct 2026

Team $29/mo monthly Unlimited workspaces · unlimited members · 30-day execution history · private hotlinks · 5 MCP tokens/spec · 5,000 MCP requests/day · 3 integrations · 3 GitHub organizations openapistudio.app · 1 Oct 2026

Scale $99/mo monthly Unlimited workspaces · unlimited members · 90-day execution history · private hotlinks · 20 MCP tokens/spec · unlimited MCP requests/day · unlimited integrations · unlimited GitHub organizations openapistudio.app · 1 Oct 2026

Compared on API design tools

Free plan: Yes
OpenAPI support: Yes
AsyncAPI support: Yes
Contract validation: Yes
Git synchronization: Yes
Team collaboration: Yes
Included team seats: 3

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The record

Purpose: OpenAPI Studio is a visual editor for designing, testing, and publishing AI-ready APIs.
Flow builder: The visual flow builder represents API paths as a node graph and supports four layout algorithms.
Endpoint execution: A server-side proxy runs API requests and avoids browser CORS limitations.
Recipes: Recipes chain up to 10 API calls, map responses with JSONPath, and apply per-step assertions.
MCP server: Each workspace includes a six-tool MCP server with search, get, create, update, run, and analyze tools.
Integrations: Native integrations include GitHub, Slack, Linear, Notion, and MCP connections for AI assistants.
Integration security: Supported integrations use OAuth and store tokens encrypted in the workspace; raw API keys are not requested.
Data privacy: The service says it does not sell data, use client-side analytics, or use tracking pixels, and allows export or deletion of data.
Data hosting: Cloud data is stored on Cloudflare D1, KV, and R2, while self-hosted deployments use the customer's Cloudflare account.
Access control: Workspaces provide Owner, Editor, and Viewer roles with enforced role-based permissions.
Security limitations: SSO, SCIM, and audit logs are not yet offered.
WebSocket support: WebSocket endpoints can be modeled and tested alongside HTTP and exported as AsyncAPI 3.0 YAML.
Support: Community support is provided through GitHub Issues on all tiers, while priority email support is available on Pro, Team, and Scale.
Maker: OpenAPI Studio is described as a solo developer project built in the open with a public codebase and transparent roadmap.
Price from: $9/mo

Where it ranks on Freedom251

Best API Design Tools in 2026#12 of 26

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Sources

openapistudio.app· checked 1 Oct 2026
openapistudio.app/features· checked 1 Oct 2026
openapistudio.app/docs/guides/run-endpoints· checked 1 Oct 2026
openapistudio.app/docs/integrations/overview· checked 1 Oct 2026
openapistudio.app/privacy· checked 1 Oct 2026
openapistudio.app/pricing· checked 1 Oct 2026
openapistudio.app/docs/guides/websocket-endpoints· checked 1 Oct 2026
openapistudio.app/about· checked 1 Oct 2026