REM: Reverse Engineer Marketing

Paste a link. Get the whole marketing machine behind it.

Paid ads · organic social · SEO & AI search · founders · funnel · positioning history, with the evidence for every claim.

npx reverse-engineer-marketing notion.so

Quick start · Web app · What it finds · Use it from your agent (MCP) · Example report · How it works

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Nobody shares their growth alpha anymore. But most of it is public if you know where to look: ad libraries show which ads have been running for months (the winners), pixels show which platforms they buy, sitemaps show programmatic SEO, Wayback shows every repositioning, and founders post their playbook in public.

REM collects all of it from one link and turns it into a report: what the company's growth engine is, how the channels connect, and a step-by-step playbook to copy it. Every fact cites the evidence it came from, and everything REM couldn't see is listed as unknown, with a link to check it yourself.

Inspired by REA (Reverse Engineer Anything), but for marketing instead of binaries.

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Quick start

Try it with zero setup, no keys: a recorded Cal AI teardown opens in the web app.

npx reverse-engineer-marketing demo

Then run it on any company:

npx reverse-engineer-marketing linear.app

That works with no API keys: website, tracking pixels (including pixels hidden inside Google Tag Manager containers), SEO/sitemaps, AI-crawler stance, Wayback positioning history, App Store/Google Play and Hacker News.

Add keys to unlock the rest:

export SCRAPECREATORS_API_KEY=...   # ad libraries, social stats, founders, Reddit (~25–50 credits per run)
export ANTHROPIC_API_KEY=...        # the written strategy report (Claude)
npx reverse-engineer-marketing calai.app

Output goes to ./rem-reports/<domain>-<date>/: report.md plus evidence.json (the raw evidence bundle).

It also accepts App Store and Google Play links: rem https://apps.apple.com/us/app/…/id123.

rem <url> [--no-ai] [--json] [--only paid,social,seo] [--handle tiktok=name] [--out dir]
rem web              # local web app (Claude Code / Codex subscription)
rem demo             # recorded Cal AI teardown in the web app, no keys
rem diff <domain>    # what changed since the last run: new/killed ads, growth, repositioning
rem setup            # connect REM to Claude Code / Codex (shows the plan, asks before changing anything)
rem doctor           # which sources your keys unlock
rem mcp              # run the MCP server

Web app: use your Claude Code or Codex plan

npx reverse-engineer-marketing web

Opens a local web app at http://localhost:4321. Paste a link, pick who writes the report, and watch the evidence come in and the playbook stream out. Every E12 citation opens the raw evidence behind it.

The Posts & ads tab is a review library of everything collected: Meta ads (active and paused, with creatives, inline video, run length, variants, top-by-impressions), Google and LinkedIn ads, TikTok and Instagram videos, YouTube, X and LinkedIn posts (company and founders), and Reddit threads and brand/founder replies. Filter by platform, sort by top / newest / longest running, open any original. The rail shows the brand logo and the founders with photos, roles, LinkedIn/X audience and a confidence badge.

Report writer	How it runs	Cost
Claude Code	your installed claude CLI, headless, no tools	your Claude subscription
Codex	your installed codex exec, read-only sandbox	your ChatGPT subscription
Anthropic API	ANTHROPIC_API_KEY	per token
Evidence only	no AI	free

Subscription engines run the CLI you're already logged into. REM strips ANTHROPIC_API_KEY / OPENAI_API_KEY from their environment so your plan is used, not an API key, and runs them in a scratch folder with your MCP servers and hooks disabled. The server listens on 127.0.0.1 only and rejects other hosts and origins. Add your Scrape Creators key from the top-right pill; it's saved to ~/.config/reverse-engineer-marketing/config.json (mode 600). Past runs are listed on the home page.

This is the beginning of the README. Read the rest at the original. Read the full README ↗