How to List a New MCP Server on Loomal indexed, claimed, discoverable.
From zero to a live listing agents can find: check whether you're already indexed, claim or submit your server, and fill in the metadata that actually drives discovery.
The Loomal Index is built so agents — not just humans — can find your MCP server, read what it does, and call it. Getting listed is a short process; getting listed well is mostly about metadata, because the index can only surface what your manifest and description say.
This guide walks the full path: checking for an existing listing, claiming or creating one, verifying ownership, and tuning the fields that determine whether anyone finds you.
Step 1: check whether you're already indexed
Loomal imports servers from the official MCP registry, so if you've published there, your server may already have an unclaimed listing. Search the marketplace for your server's name or repository before creating anything — claiming an existing listing preserves its URL and any traffic it has accrued.
If you find your server, the listing page shows a claim action. If not, you'll create a fresh listing from the console.
Step 2: claim or submit in the console
Sign in at console.loomal.ai and either claim the existing listing or add your server new. Ownership verification runs through GitHub: you prove control of the repository the listing points to, which is what separates a maintainer-claimed listing from an unclaimed index entry.
Claiming matters beyond the badge. Claimed servers can connect their live endpoint so Loomal probes and publishes the actual tool list — names, descriptions, and schemas pulled from the running server rather than guessed from a README. Agents evaluating tools see exactly what they'd get.
Step 3: get the manifest fields right
Discovery is driven by a handful of fields, and most of them come from your registry manifest. The name should say what the server does; the description should lead with capability and contain the nouns people search for. A remote URL makes your server callable by hosted agents, not just local clients.
{
"name": "io.github.acme/inventory-mcp",
"description": "Query live inventory levels and wholesale pricing for the Acme catalog. Returns structured JSON per SKU.",
"version": "1.2.0",
"repository": { "url": "https://github.com/acme/inventory-mcp", "source": "github" },
"remotes": [
{ "type": "streamable-http", "url": "https://mcp.acme.com/mcp" }
]
}Step 4: decide whether to charge
Listing and charging are separate decisions. If you monetize, you set a per-call price — minimum $0.01 — and your server becomes payable over x402: agents pay in USDC, settlement lands on Base in about two seconds, and each call produces an Ed25519-signed receipt. Loomal's fee is 5% on settled transactions, currently waived.
Pricing is a single field you can change anytime, so an imperfect first price is cheap to fix. If you're unsure where to start, the pricing guides below cover benchmarks by category.
What a good listing looks like after launch
A strong Loomal listing has four things: verified ownership, a live-probed tool list, a description written for the queries your users actually type, and — if monetized — a price that matches the value band of its category. Each one is independently checkable from your listing page.
After launch, watch the console for discovery and call data. Listings are not fire-and-forget; the ones that win their category keep descriptions current as tools evolve.
FAQ
My server is already on the official MCP registry — do I need to do anything?
Probably just claim it. Loomal imports from the official registry, so you likely have an unclaimed listing already. Claiming via GitHub verification lets you connect your endpoint, publish the live tool list, set pricing, and edit the listing's metadata.
Does my server need to be remote to list?
No — stdio-only servers can be listed and discovered. But a remote Streamable HTTP endpoint is what makes the server callable by hosted agents and is a prerequisite for x402 monetization, so most sellers migrate before or shortly after listing.
Can I list without setting a price?
Yes, listing and monetization are independent steps. When you do add a price, the minimum is $0.01 per call — there is no $0 price tier — and Loomal's 5% fee on settled transactions is currently waived.
How long until my listing appears in the index?
Claimed and newly submitted listings appear once verification completes — typically minutes, not days. If you came in through the official registry, indexing of registry updates depends on the import cycle; the guide on getting indexed faster covers how to shortcut that.
List your MCP server.
Claim or submit in minutes; verify with GitHub and go live.