Browser infrastructure for agents, with live previews, human handoff, and durable browser workflows.

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MASAKA gives agents an observable, interruptible, and verifiable browser runtime:

• launch isolated browser sessions and send real input to web pages;
• watch agent activity in real time and take over when needed;
• verify each step with screenshots, page state, and structured results;
• manage browser sessions, configuration, usage, and team workflows in one place.

Jet Browser is a lightweight WPE WebKit runtime for agents, with native input, screenshots, and an ordered JSONL interface. The core runtime can be deployed independently without requiring MASAKA's hosted control plane, an account, or a model provider.

• View the product and reproducible benchmark
• Read the technical report
• Browse the source and installation options

Masaka for Codex keeps multiple authorized ChatGPT account and workspace profiles signed in for the native Codex CLI. Each account/workspace pair owns an isolated CODEX_HOME, while the official Codex browser login remains the authentication owner.

Direct mode selects the identity for the next native Codex process. Optional Proxy mode can route the next request only after any in-flight response finishes. Masaka reads the official usage windows; it does not copy tokens or bypass quotas.

• Install the latest public npm release
• Browse the source, safety boundaries, and commands
• Follow the Product Hunt launch and share feedback

• GitHub Discussions is the place for open-source integration questions, benchmark reproduction, implementation patterns, and community examples.
• Discord is for MASAKA hosted-browser workflows, human handoff, and product feedback.

Only automate websites, accounts, and data you are authorized to access. Never post passwords, API keys, session cookies, payment details, saved credentials, or personal data in public channels.

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