Yaak review
A focused, open-source API client with broad protocol support and limited team automation.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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.
Yaak pros and cons
- 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
Yaak fact sheet, pricing and score →
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update