Connect in one minute

The server URL is all you need. Industry leaderboards, trending styles and already-cached brands work with no key at all.

https://wilow-ad-library.vercel.app/api/mcp

Claude (web or desktop)

Settings, then Connectors, then Add custom connector, then paste the URL.

Claude Code

claude mcp add --transport http wilow-ads "https://wilow-ad-library.vercel.app/api/mcp"

Grok Build

grok mcp add --transport http wilow-ads "https://wilow-ad-library.vercel.app/api/mcp"

Or type /mcps in a session and paste the server URL.

Cursor and other MCP clients

{ "mcpServers": { "wilow-ads": { "url": "https://wilow-ad-library.vercel.app/api/mcp" } } }

Get a free access key

Fresh data (new brand pulls, brand search, reach lookups) needs a free key. Enter your email and it is yours instantly. Or ask your assistant to register for you: the server has a register tool.

Your access key

Add it to the server URL and reconnect:

Daily limits per key: 10 brand searches, 5 fresh brand pulls, 20 reach enrichments. Resets midnight UTC.

What you can ask

"What is Gymshark running on Facebook and Instagram right now? What is proven vs what are they testing?"
"Which pet food brand has the best performing ad in the UK this month, and what is it doing?"
"Pull Huel's delivered reach by age and gender and estimate what they are spending."
"What ad styles are trending right now? Give me a recipe for the best one."

The tools

Tool	What it does
`get_brand_ads`	Every active ad a brand runs, split into launched in the last 30 days (testing) vs 90+ day long-runners (proven)	Key for fresh
`get_ad_reach`	Delivered EU/UK reach per ad: per country, age and gender breakdown, targeted audience, spend estimate	Key for fresh
`search_brands`	Find any brand's Facebook Page ID by name	Key
`list_verticals`	Curated industry leaderboards: health, beauty, B2B software, pet care and more	Free
`get_vertical_leaderboard`	Top active ads in an industry, ranked by reach velocity	Free
`get_trending_styles`	Hand-curated trending ad styles with recipes and live examples	Free
`get_creator_detail`	A creator's paid partnership history across brands	Free
`register`	Get an access key in conversation	Free

What is MCP?

MCP (Model Context Protocol) is the open standard that lets AI assistants like Claude and ChatGPT connect to live data sources. Adding an MCP server to your assistant gives it new abilities: this one gives it the Wilow Ad Library, so it can research real, active Facebook and Instagram ads instead of guessing from training data.

Most ad spy tools show you what an ad looks like. EU and UK transparency rules also disclose what an ad delivered: reach per country, broken down by age and gender. This server exposes that layer per ad, free, with a directional spend estimate (reach at a flat 10 GBP CPM, clearly labelled as an assumption). Prefer a browser? The Ad Library tool is the same data with no setup.

Facebook and Instagram ad research, inside your AI assistant