Connect Steam wishlist and sales data to Claude or ChatGPT

Updated 2026-11-08

Add https://mcp.wishlistledger.com/mcp as a custom connector, allow read access, and ask your assistant about wishlists, sales and refunds. Today the connector serves a sample studio's data, so you can see exactly what it answers before your own account is connected.

Claude (web or desktop)

On Team and Enterprise plans, an Owner adds the connector under Organization settings first (Claude help).

Open Customize, then Connectors.
Click + Add, then Add custom connector.
Name it Wishlist Ledger, paste https://mcp.wishlistledger.com/mcp and click Continue, then Add.
Click Connect, read the sign-in page and choose Allow.
In a new chat, ask "Which games are on my Steam account?"

Claude Code

Run claude mcp add --transport http wishlist-ledger https://mcp.wishlistledger.com/mcp, then /mcp to sign in.

ChatGPT

Turn on connectors (developer mode) under Settings, Apps and connectors, then create a connector with the same URL.
Connector support in ChatGPT depends on your plan; OpenAI lists what each plan allows.

Questions to try

How many wishlists did Moss & Mortar gain during Next Fest October 2026, compared with the two weeks before?
What share of outstanding wishlists bought Hollow Tide in launch week?
Which countries had the highest refund rate for Hollow Tide in its first month?
Compare all titles for October 2026: wishlist adds, units and net revenue.
What did the Summer Sale 2026 do for Signal Garden?

The nine tools

list_games, get_account_status
get_wishlist_activity, get_wishlist_breakdown (country or platform), get_wishlist_conversion
get_sales (units, refunds, gross, tax and net revenue by day, week, month, country, discount, package or app)
compare_titles, list_steam_events, get_event_impact