Your creative research assistant
Last updated 15 October 2026Connect Claude, Cursor or any MCP client to the library. Your assistant can search every ad, read the creatives and the copy, pull week-by-week history and request newsletters, so you can ask for research instead of doing it by hand.
Create a free account to get your key →
Three prompts to start with
Weekly competitor recap
Using bestnewsletterads, check my watchlist newsletters for this week: what did each launch, stop or start scaling? Summarise in 5 bullets for my boss, with links to each ad.Hook brainstorm
Pull the 20 longest-running lead-magnet ads in personal finance from bestnewsletterads. Look at each creative and its copy, cluster the hooks, then draft 10 new hooks for my newsletter in the patterns that run longest.Client report
For the newsletters The Daily Ledger and Margin Notes, use get_ad_history and get_weekly_snapshot for the last 8 weeks. Write a one-page report: testing tempo, offer mix, what they kept running and what they killed.What it can do
- search_newsletters / get_newsletter: find newsletters and their stats, offer mix, hooks and top ads.
- search_ads: full-text search of ad copy, with filters for category, format, offer, hook, scaling and date.
- get_ad_history: one ad in full, with its variants and its state every week.
- get_weekly_snapshot: what launched, stopped and scaled in a week, for the library, a category or a newsletter.
- top_ads: the top ads by Signal score, run length, duplicates or scaling now.
- request_newsletter: ask us to start tracking a newsletter.
Image links in results are valid for an hour, so your assistant can look at the creatives. Limits: 60 calls a minute per key. Full reference: the setup panel on your account page.