Yaak
Yaak: A focused, open-source API client with broad protocol support and limited team automation. Ranked #29 of 33 in API Testing Tools by our editors (6.3/10); pricing: Free plan · 30-day trial; best for developers wanting a modern lightweight API client.
At a glance
- Editor score6.3 / 10
- PricingFree plan · 30-day trial
- Best forDevelopers wanting a modern lightweight API client
- Free planYes
- Paid from$79/user/yr
- Scheduled runsNo
- Facts checked21 Sep 2026
Where it wins
- Supports HTTP, GraphQL, gRPC, WebSocket, and SSE requests
- Encrypted secrets, environments, chaining, and Git-based workspaces
- Runs on macOS, Windows, Linux, and offers CLI and MCP integrations
Where it doesn't
- No hosted mock servers or scheduled monitors
- Commercial use of prebuilt binaries requires a license
- Business collaboration features are limited to the Business plan
Our verdict on Yaak
Yaak is a local-first desktop API client for developers who need to send and organize requests across several protocols. It supports HTTP and REST, GraphQL, gRPC, WebSocket, and server-sent event connections on macOS, Windows, and Linux. Authentication covers OAuth 2.0, API keys, bearer tokens, basic authentication, JWT, NTLM, and client certificates. Yaak works without an account, is open source under the MIT license, and provides a free option for personal use. Commercial use of prebuilt binaries requires a license.
The published plans show three licensing paths. Individual Annual costs $79 per person per year and includes commercial use, a lifetime fallback license, email support, and one single non-transferable license. Individual Lifetime costs $399 one time and includes commercial use, a lifetime license, email support, and one single non-transferable license. Business Annual costs $149 per user per year and adds transferable licenses, SSO and user provisioning, and priority email support. A 30-day free trial is available. The Individual plans suit solo developers, while Business Annual is the clearer fit for teams that need user and license administration.
Yaak’s strongest area is protocol and workspace coverage in a desktop-focused workflow. Environments, variables, template functions, request chaining, OpenAPI and Swagger import, encrypted secrets with OS keychain support, and plain-text workspace storage support repeatable development work. Git, Dropbox, 1Password, MCP-compatible tools, Claude Desktop, and Cursor are listed integrations, alongside a CLI for sending requests and managing workspaces. The product is less suitable for teams that require hosted mock servers or scheduled monitors, since those capabilities are not included. Choose Yaak for local API exploration, multi-protocol requests, and Git-oriented collaboration; consider an alternative when continuous scheduled testing or mock infrastructure is central to the workflow.
Your product? Our editors can test Yaak in depth and publish a review, labelled as paid · from $149/mo →
Yaak pricing
Yaak fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $79/user/yr |
| GraphQL support | Yes |
| SOAP support | Not verified |
| Scheduled runs | No |
| CI/CD integration | Not verified |
| Mock server | No |
| Contract testing | Not verified |
| Included requests | Not verified |
| Free trial | 30 days · no card needed |
| Money-back guarantee | 30 days |
| Deployment | Desktop |
| Platforms | Windows, macOS, Linux |
| Compliance & security | SSO/SAML |
| Support | Email, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Pricing | Free plan · 30-day trial (source) |
| Website | yaak.app |
| Facts checked | 21 Sep 2026 |
Alternatives to Yaak
- PostmanA mature API test platform with broad protocol support and a wide feature set.9.3
- ApidogA broad API toolkit for teams that need design, testing, automation, and documentation together.9.2
- SoapUIA broad, free API testing desktop tool for functional, contract, performance, and load work.9.0
Also Ranked In
Yaak is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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