Run existing collections as-is. API keys stay on your machine. Zero cloud, zero limits, zero paywalls — with an LLM agent built in.
$0
Forever
100%
Local
4
Platforms
No
Sign-in
macOS (Apple Silicon & Intel) · Windows · Linux
Core capabilities
Exploration, AI authoring, chaining, environments, export, and data-driven runs — all in one local-first desktop app.
REST, GraphQL, SOAP, gRPC. A response viewer that actually reads the payload — JSON tree, header inspector, schema hints, syntax highlighting.
Paste a response. The LLM proposes expect() lines, edge cases, and scenario variants — in the syntax you already use.
✓ expect(res.status).toBe(200)
✓ expect(res.data.id).toBeDefined()
~ suggest: cover 4xx & expired token
Pipe a value from one response straight into the next request. No glue code.
$.user.id → /users/{id}/orders
Shared variables, secret profiles, one-click switching. Never paste a token twice.
Point at a CSV or JSON. Same request, parametrised runs, rolled-up report.
.featureTurn any exploration into CI-ready Karate automation — no rewriting. The same scenario runs locally, in Jenkins, and on your self-hosted runner.
Scenario: login
Given url baseUrl
When method post
Then status 200
Licensing, SSO, volume pricing, or a live walkthrough — talk to us.
100% Local
Zero cloud. API keys stay on your device.
No Limits
No paywalls on core features. Free forever.
Zero Migration
Import existing collections instantly.
LLM Agent
AI-assisted testing with MCP integration.
Get started with a powerful free tier. Upgrade when you need advanced capabilities.
Go deeper
Everything you need to get started, dig into the features, and ship.
01 · Features
API exploration, AI-assisted test authoring, request chaining, environments, and one-click export to Karate feature files.
View all features02 · Download
Signed installers for macOS (Apple Silicon & Intel), Windows, and Linux. Latest release v2.1.3.
Get the app03 · Documentation
Installation, usage tutorials, configuration reference, and deep integration with the Karate framework.
Read the docsThree products, one journey
Start by exploring APIs with Xplorer. Scale to automation with the Karate framework. Add AI-powered verification with Karate Agent.
Step 01 · Explore
Desktop API client with an LLM agent. Explore, test, and iterate — locally, for free.
Step 02 · Automate
Open-source test automation. API, performance, mocks, UI — one consistent syntax.
Explore KarateStep 03 · Verify
AI-native browser testing at enterprise scale. BYO LLM, self-hosted, token-efficient.
Explore Karate AgentReady when you are
Free to download, free to use. Your existing collections, your LLM, your machine — no setup, no sign-in.