Starting out
Find a niche your budget can actually enter: demand that exists, a head not already owned by four sellers, and a price band that leaves margin. Product Research gives the verdict; Category Insights shows the neighbours.
Marzi reads the whole Allegro category tree every week — revenue, buyers, sellers, price bands and competition — and turns it into straight answers: which niche to enter, who you are up against, what they charge, and where your own offer stands in search.
Every product reads the same weekly index of Allegro and the same live pages. Pick the question you have; the numbers behind the answer are the same everywhere.
One MCP endpoint through which Claude, ChatGPT, Codex, the OpenAI Responses API or any MCP client reads any public Allegro data the moment it needs it — and keeps watching it over time with monitors Marzi runs itself. Your products and the weekly index come on top. The first 5,000 requests are free.
See AI Integration
ClaudeClaude Code
ChatGPT
CodexOpenAI Responses API
Any MCP client
Perplexity
Google Gemini
OllamaThe same index answers a first-purchase question and a portfolio question — what changes is how deep you go into the tree.
Find a niche your budget can actually enter: demand that exists, a head not already owned by four sellers, and a price band that leaves margin. Product Research gives the verdict; Category Insights shows the neighbours.
Keep the competitors that matter in daily view, with hundreds of prices in one table and your own offers’ positions in search — without the morning ritual of opening tabs.
Read a whole department the way the market reads it — concentration, the long tail, who holds the head — and wire Allegro into your own agents through the MCP server.
Nothing is bought from third parties and nothing is guessed silently. Every figure has the page it was read from and the method printed next to it.
Every Monday the whole tracked tree is read — offers, sellers, prices and Allegro’s own buyer counter — so every niche is measured in the same window.
A seller is in seven niches on average. Marzi counts distinct sellers and never sums them across niches — the totals stay honest, even when a smaller number is less impressive.
Revenue is buyers multiplied by the median price and is labelled as an estimate. Trends wait for 21 days of history. Where data is missing, the screen shows the reason with numbers — not a placeholder.
7 days, no card required. The whole index, your trackers and the MCP endpoint are live from your first sign-in.