Self-Hosted Browser Automation Platform

Persistent Cloud Storage & SDK for Site-Specific Browser Patches

MonkeyBrain provides a generic, tenant-isolated JSONB & resource-tagged REST API. MonkeyPatch runs site-specific browser modifications powered by a clean, strongly-typed Patch SDK.

Create Account Download MonkeyPatch Open Demo Sandbox ↗

1. Application-Agnostic Backend

Store arbitrary JSONB documents with namespaces, logical keys, and multi-resource associations (domain:..., url:..., jira:...) without changing backend schemas.

2. Strongly-Typed Patch SDK

Patches run in isolated sandboxes and call ctx.store.namespace(...). The background service worker securely manages API tokens and network calls.

3. Public & Personal Build Isolation

Develop private site patches inside extension/patches/personal/ with independent Git history while keeping public builds 100% clean and verifiable.

Create Your MonkeyBrain Account

Each account receives an isolated private tenant workspace automatically.

Already have an account? Log in here.

Log In to MonkeyBrain

Access your tenant workspace, manage API tokens, or download the extension.

Need an account? Register now.

Account & Tenant Settings

Display Name—

Email—

Tenant Workspace—

Tenant Slug—

Tenant ID—

RoleOwner

Create Revocable API Token

You can log in directly inside the MonkeyPatch popup, or generate a personal API token here.

Active & Recent API Tokens

Tokens issued via the portal or when signing into the MonkeyPatch extension.

Name	Prefix	Created	Last Used	Status	Action
Loading tokens...

Stored Tenant Documents Explorer

Live view of documents saved in your tenant across all patches.

Namespace	Key / Type	Resources	Data (JSONB)	Updated
Loading documents...

Download MonkeyPatch Chrome Extension

Public distribution build containing the MonkeyPatch Manifest V3 runtime, Patch SDK, and example patches.

Extension v0.1.0 · API v0.1.0

Public Unpacked Extension Bundle (`monkeypatch-public.zip`)

Ready for download. Verified free of personal patches and private host permissions.

⬇ Download monkeypatch-public.zip

Chrome Installation Instructions (Developer Mode)

Register an account: Create your account on this MonkeyBrain portal (Register) so your private tenant is ready.
Download & Extract: Click Download monkeypatch-public.zip above and extract the ZIP archive to a permanent folder on your computer (e.g., C:\Extensions\monkeypatch-public).
Open Chrome Extensions: In Google Chrome, navigate to chrome://extensions in the address bar.
Enable Developer Mode: Toggle the Developer mode switch in the top-right corner of the chrome://extensions page.
Load Unpacked: Click the Load unpacked button in the top-left and select the extracted folder (the folder containing manifest.json).
Sign In via Extension Popup: Click the MonkeyPatch icon in your Chrome toolbar, verify the MonkeyBrain Server URL (), and log in with your email and password.
Try the Example Patch: Open the Live Demo Sandbox (/demo) ↗ or https://example.com to see the floating Demo Notes patch in action!