BrowserKing: Open-Source Chrome Extension for Browser Control via Claude and Other Models

BrowserKing is a free, open-source Chrome extension that turns Claude and other AI models into full browser agents. It operates from a side panel and requires no account or subscription—just your Anthropic API key.
Key Features
- Supports Claude and 15+ other AI models
- Takes screenshots of the current browser screen and sends them to the selected model
- Acts on the model's decisions to perform browser actions
- Each provider gets its own theme color, with the UI adapting visually when switching models
Browser Control Capabilities
- Clicking buttons
- Filling forms
- Scrolling
- Navigating tabs
The developer notes that Claude handles the vision + tool call combination particularly well compared to other providers tested. The extension is available on GitHub under the MIT license.
This type of tool is useful for automating browser-based tasks through natural language instructions, potentially reducing manual interaction with repetitive web interfaces.
📖 Read the full source: r/ClaudeAI
👀 See Also

Open-Foundry: A Framework for Multi-Agent Debates with Claude Code
Open-foundry is a Python framework that assembles multiple Claude Code agents into a panel to debate complex questions, producing fully inspectable reasoning trails with transcripts, orchestrator logs, and per-agent working notes.

Snip tool enables visual communication with AI coding agents
Snip is a free tool that lets developers screenshot, annotate, and draw to show AI agents what they mean visually, while agents can generate diagrams or load images directly through CLI or MCP. Currently runs on Apple Silicon Macs with Mermaid diagram support and HTML support in progress.

OpenClaw developer builds unified memory system for AI agents
A developer has built a 15-tool unified memory system for OpenClaw AI agents that combines structured facts, vector search, entity graphs, episode timelines, hierarchical compression, and event-driven coordination. The system runs locally without cloud dependencies or monthly fees.

OpenTrace: Self-Hosted Observability Server with 75+ MCP Tools
OpenTrace is a self-hosted observability server that provides logs, user analytics, and database introspection through 75+ MCP tools, running on a $4 VPS with SQLite storage and read-only Postgres connections.