Optimize your Loomal listing for discovery.
Your listing competes in search results, category pages, and agent queries. The description, tags, and tool list you publish decide whether it surfaces. Here's what actually moves the needle.
Loomal surfaces servers in three places: marketplace search, category pages, and the machine-readable index that agents query directly. Each one reads your listing differently, so an optimized listing has to work for a human skimming a category page and for an agent matching a task against your tool descriptions.
Most listings imported from the official MCP registry ship with whatever description the maintainer wrote for GitHub. That's rarely what a buyer searches for. This guide covers the specific fields worth rewriting and why.
Lead with what the server does, not what it is
The first sentence of your description is what shows on category pages and in search snippets. 'An MCP server for X' wastes that sentence — everything on Loomal is an MCP server. Lead with the capability and the object: 'Search court filings by case number, party, or judge' beats 'A legal data MCP server' in both search matching and click-through.
Name the concrete inputs and outputs. Agents and the humans configuring them search for nouns — 'PDF', 'flight prices', 'Postgres' — so a description that never mentions its data sources or formats is invisible for the queries that matter most.
Pick the category buyers browse, not the one that flatters you
Category pages are high-intent traffic: someone browsing the web scraping category is choosing a scraper today. Put your server where that comparison happens. A scraping tool with an AI summarization feature belongs in web scraping, not AI/ML — it will be the tenth-best AI tool but possibly the best scraper.
Tags fill the gaps the category can't. Use them for the specific protocols, formats, and platforms you support. Skip generic tags like 'ai' or 'automation'; they match everything and therefore rank nothing.
Claim the listing and connect your server
Unclaimed listings show static registry metadata. When you claim your listing through GitHub ownership verification and connect the running server, Loomal probes it and publishes the live tool list — every tool name, description, and input schema, straight from your server.
This is the single biggest discovery upgrade available. Tool descriptions are exactly what an agent matches against when deciding what to call, and a claimed listing with twelve well-described tools matches twelve times as many queries as a one-line summary.
Write tool descriptions for the agent, in the server
Because Loomal publishes your probed tool list, your MCP tool descriptions are now marketing copy. Each one should state what the tool returns and when to use it: 'Returns current and 7-day forecast for a lat/long pair' gives an agent something to match; 'weather tool' does not.
Keep input schemas honest and minimal. Agents pre-screen tools by required parameters, and a tool demanding six fields for a simple lookup gets skipped in favor of one that asks for two.
Set a price and keep the listing alive
Priced listings carry more signal than unpriced ones: an agent querying the index needs to know what a call costs before it commits, and a per-call price (minimum $0.01) plus an x402 endpoint makes your listing transactable rather than merely visible.
Revisit the listing when your server changes. New tools only appear after a re-probe, and a stale description that no longer matches your tool list erodes trust with the exact buyers who looked closest.
FAQ
Does claiming my listing actually change how it ranks?
It changes what there is to rank. A claimed listing with a connected server shows the live, probed tool list, so search and agent queries can match against every tool's name and description instead of a single summary line. More matchable surface means more queries you appear for.
Should I stuff keywords into my description?
No. Loomal's search matches descriptions and tool metadata, but the listing is also read by humans deciding whether to configure your server. Write one clear sentence about capability, then name your concrete inputs, outputs, and platforms — that covers the real queries without reading like spam.
Can I be listed in more than one category?
Each listing has a primary category that decides which hub page it appears on, with tags covering secondary capabilities. Choose the category where buyers comparison-shop for your core function, and use tags for everything adjacent.
Do I need to set a price to be discoverable?
Your listing appears in search and category pages either way, but pricing it makes it transactable: agents querying the index see a per-call price (from $0.01) and an x402 payment path, so they can call you without a human in the loop. Loomal's fee is 5% on settled transactions, currently waived.
Polish your listing.
Claim it, connect your server, and publish a tool list agents can find.