--- source_url: "https://mavster.ai/?utm_source=openai" title: Mavster — Maverick Tester Agent mirrored_at: 2026-08-22T01:02:58.858Z host: mavster.ai cited_in_42a: true mirror_canonical: "https://index.42a.ai/mavster.ai/index__q__utm_source_openai" --- > **Original source:** https://mavster.ai/?utm_source=openai ![Mavster](https://mavster.ai/mavster-face.png) Local MCP server for Claude Code, Cursor & Codex ## Your agent writes the app. This agent verifies it. Maverick + Tester \= Mavster — the eyes, hands, and memory for your coding agent. Mavster hands your coding agent a power it lacks on its own — every verified flow hardens into a deterministic test that replays identically in seconds, recording stability artifacts and regression coverage as you go. The two work in lockstep to build, drive, and verify your iOS and Android app — and ship at a level neither reaches alone. Minimum requirements: macOS 26.3 Tahoe or later · Apple Silicon · Xcode + iOS Simulators · Android Studio + Emulators (optional) · Subscription required ## Priced like a dev tool Start free. No sales calls, no gatekeepers — add Mavster to your agent, or author zero-code tests yourself, and go. Upgrade to have Mavster explore and author flows for you. Basic and Pro subscribers can top up overage credits anytime at $1 = 100 credits ($25 minimum). Per-test costs drop as visual memory kicks in — tests get cheaper and faster after the first run. Monthly credits pause when your balance reaches 1.5× your plan’s allotment. Top-up credits don’t expire. Credits require an active subscription to spend — cancellations preserve your balance but lock it until you resubscribe. Mavster runs on your machine — no cloud instances or device-farm fees on top of your subscription. ## How the loop works Your agent stays free to write code. Mavster takes the verification and hands back evidence of progress or regress. Your agent reacts. Every verified feature becomes a deterministic test — your e2e suite grows as a byproduct of shipping. And it compounds: a world map of your app plus already-passed steps make every run cheaper and more reliable than the last. ## Sees like a user. Runs like a machine. Mavster finds elements like a person — by scanning the screen — then runs the exact steps you defined. Every run is deterministic: each step passes or fails clearly. No improvising, no flake. ## Everything your agent needs to prove the implementation works Built for developers who ship with Claude Code, Cursor & Codex — and the QA teams who own the coverage. Authored once, run the same every time, no flake. ### Coding Agent Integration Mavster ships an MCP server, so coding agents like Cursor, Claude Code, and OpenAI Codex can author, validate, build, and run UI tests in a single chat command — no plugins, no glue code. ### Zero-Code & Cross-Platform A simple, guided, zero-code test builder that works across iOS and Android — built for automation engineers, QA teams, and mobile developers alike. Watch video ### Self-Healing Optional recovery when a step hits real-world friction — system alerts, permission sheets, or simulator quirks — without turning every test into a brittle funnel. Watch video ### Author with Mavster Point Mavster at a goal and it explores your app, then writes a clean, deterministic test you own — explored once, replayed the same way every run. Watch video ### Operational Determinism Understands your app to reliably find and interact with UI elements — achieving repeatable outcomes through screen understanding, visual memory, and multi-agent infrastructure. Learn more → ### Flow Control & Composition Modular test composition, conditional branching, and built-in device controls — build complex flows without glue code. Watch video ### Rich Interactions & Assertions Visual assertions, scroll-until-found, and advanced drag controls — validate state, find elements, and manipulate any UI. Learn more → ### Parameterized Tests Use $variables and pass data in, so one test definition covers multiple scenarios and data sets. Watch video ### Cost-Aware by Design Tracks Mavster usage per test and leverages visual memory so repeat runs get cheaper and faster after the first run. Watch video ### Runs on Your Machine No cloud VMs, no device farms. Mavster runs locally alongside Xcode and Android Studio on your existing Mac or your dedicated build machine — zero infrastructure overhead. Already using cloud VMs? Just install Mavster alongside your existing build infrastructure and you're good to go. ### CI/CD, Suites & Scheduling Plug into your CI/CD pipeline, organize tests into suites, schedule runs, or trigger automatically on every push or PR. ### History & Analytics Step-by-step playback, pass rate tracking, failure trends, and reliability metrics at every level. ### Cloud Sync Projects back up to the cloud for recovery across machines. History, analytics, and cost data sync automatically so you can access test reports from anywhere. ![Mavster](https://mavster.ai/logo.png) ## Your agent ships the feature. Mavster keeps it shipped. It closes end-to-end flows on real devices — and leaves behind the regression suite teams pour money and months into. Download for Mac and go. [Download for Mac](https://mavster.ai/downloads/Mavster.dmg)[Create Account](https://mavster.ai/signup/) Minimum requirements: macOS 26.3 Tahoe or later · Apple Silicon · Xcode + iOS Simulators · Android Studio + Emulators (optional) · Subscription required