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rsi-ai-platform

browser-research-mcp

by rsi-ai-platform
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browser-research-mcp

Browser-based research as an MCP server. Drives a real Chromium via patched Playwright (patchright) so the agent can read JavaScript-rendered tables, dynamic charts, login-walled dashboards, and AJAX dropdowns that the cheaper rungs of the fetch ladder can't reach.

This is the last rung of the ladder:

web_search → web_fetch → pdf_fetch → http_post_form → browser-research

Tools

Tool

Purpose

visit(url, …)

Open a URL with Chromium, return DOM text + screenshot. Cheap, no LLM call.

extract(url, focus, …)

visit + Sonnet structured extraction. Same response shape as pdf_fetch_structured. Sends the screenshot to Sonnet so chart values drawn via canvas/SVG get picked up.

Related MCP server: MCP Playwright Server

Why patchright

patchright is a drop-in Apache-2.0 patched Playwright that disables the AutomationControlled blink feature, removes Runtime.enable leaks, and a few other detection vectors. Indian government dashboards (PPAC, RBI, MoSPI, SEBI) work fine with this without paying for residential proxies or a hosted browser SaaS.

Run locally

uv tool install browser-research-mcp --python 3.12
# Install Chromium for patchright (one-off):
uv tool run patchright install chromium

# stdio (Claude Desktop / Cursor / desktop clients):
ANTHROPIC_API_KEY=… uvx browser-research

# HTTP (the platform backend):
ANTHROPIC_API_KEY=… uvx browser-research --transport streamable-http --port 7862

Environment

Var

Required

Default

ANTHROPIC_API_KEY

for extract (not visit)

—

ANTHROPIC_MODEL

no

claude-sonnet-4-6

HEADLESS

no

true (false to debug locally)

MCP_TRANSPORT

no

stdio

MCP_HOST / PORT

no

0.0.0.0 / 7862

Stack

Layer

Library

Browser engine

patchright (patched Playwright)

Structured extraction

Anthropic Claude Sonnet 4.6, with vision input

MCP transport

mcp[server] FastMCP — stdio / SSE / streamable-http

Session isolation

One Playwright context per MCP client_id

Install Server
A
license - permissive license
A
quality
B
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity

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