RESTK
RESTK is a free desktop tool for building, testing, and debugging REST and GraphQL APIs on macOS and Windows.
What RESTK is
RESTK is a free desktop tool for building, testing, and debugging REST and GraphQL APIs on macOS and Windows. Its request builder supports schema introspection, formatted responses, searchable history, and per-request timing. Twelve authentication methods are listed, including OAuth 2.0 with PKCE, JWT, AWS SigV4, NTLM, Hawk, and API Key. The Nova engine runs JavaScript before requests and after responses, with assertions and pass/fail reporting for automated tests. RESTK imports Postman, OpenAPI/Swagger, Insomnia, HAR, and cURL formats. Workspaces can remain local, use Git, or sync through RESTK Cloud, where Owner, Manager, Editor, and Viewer roles are available. A local MCP server connects with Claude Code, Claude Desktop, Cursor, and Windsurf. RESTK says secrets are redacted before AI access. The Free plan costs nothing and includes the native client, REST and GraphQL testing, and offline workflows.
Good
- Free plan with REST and GraphQL testing
- Supports 12 authentication methods
- Automated JavaScript test runs
- Imports common API formats
- Cloud workspace roles included
Watch out
- Linux support is only on the roadmap
- No formal service level agreement
- macOS requires version 15.6 or later
- Windows requires 64-bit Windows 10 or later
Who it suits
RESTK suits developers and teams working with REST or GraphQL APIs who need desktop request building, scripting, tests, and workspace collaboration. It is available for macOS 15.6 or later and Windows 10 64-bit or later.
Verdict
RESTK offers a broad API client, test scripting, imports, and flexible workspace storage at no cost. Check platform requirements and support expectations, especially if Linux or an SLA is required.
Plans and prices
From RESTK's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Unlimited requests · Unlimited collections · Unlimited environments · All features included |
The facts
Each one read from RESTK's own pages, with the date it was checked.
What it does
- AI data handling
- RESTK says variable values are not sent to AI, and credentials and secrets are redacted from responses before they reach the model.checked 9 Oct 2026
- AI integrations
- RESTK has a local MCP server that connects with Claude Code, Claude Desktop, Cursor, and Windsurf.checked 9 Oct 2026
- Authentication
- RESTK lists 12 authentication methods, including OAuth 2.0 with PKCE, JWT, AWS SigV4, NTLM, Hawk, and API Key.checked 9 Oct 2026
- Automated test runs
- Yeschecked 20 Sep 2026
- Collaboration
- Cloud synced workspaces support Owner, Manager, Editor, and Viewer roles.checked 9 Oct 2026
- GraphQL support
- Yeschecked 20 Sep 2026
- Imports
- RESTK supports importing Postman, OpenAPI/Swagger, Insomnia, HAR, and cURL formats.checked 9 Oct 2026
- Purpose
- RESTK is an API development and testing tool for building, testing, and debugging REST and GraphQL APIs.checked 9 Oct 2026
- Request features
- The request builder supports REST and GraphQL, schema introspection, response formatting, searchable history, and per-request timing.checked 9 Oct 2026
- Scripting and tests
- The Nova engine runs pre-request and post-response JavaScript and supports assertions with pass/fail reporting.checked 9 Oct 2026
- Secret handling
- Values marked secret are not synced or committed, and the Git workflow scans for secrets before commits and pushes.checked 9 Oct 2026
- Security
- The site says local databases are AES-256 encrypted and synced sensitive values are encrypted on-device with AES-256-GCM; cloud sync uses managed encryption.checked 9 Oct 2026
- Storage choices
- Workspaces can be stored locally, in a Git repository, or synced through RESTK Cloud.checked 9 Oct 2026
- Support
- RESTK does not currently offer a formal service level agreement.checked 9 Oct 2026
Where it runs
- Available platforms
- desktopchecked 20 Sep 2026
- Platform availability
- RESTK is available for macOS 15.6 or later and Windows 10 64-bit or later; Linux support is listed as on the roadmap.checked 9 Oct 2026
The company
- Company
- The About page names Praveen Sharma as founder and describes RESTK as a small team, but does not state its headquarters or founding year.checked 9 Oct 2026
- Team workspaces
- Yeschecked 20 Sep 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
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