League of Spin MCP server

Which servers in the official MCP registry are League of Spin's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-19

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Whose server it is

Registry namecom.leagueofspin/spotsverified in the MCP registry

The registry name sits under leagueofspin.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-19

Stateanswerschecked 2026-10-19
Tools3
Server calls itselfleague-of-spin
Server version1.0.0
Protocol version2025-06-18

On 2026-10-19 the server answered initialize and tools/list without a sign-in. First answer in 206 ms.

Measured dailydaily checks: 1, the first on 2026-10-19

Answeredmeasuring1 of the 7 daily checks it takes to print a share
Median first answer214 ms
Space in an agent's context≈ 324 tokensthe definitions of all its tools (3), which an agent carries on every turn
Tool definitionsB · 83 of 100

Not saying whether it only reads or can destroy: 3 of 3

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work.

Tools it offers3 tools · read 2026-10-19

find-spots
Find outdoor table-tennis spots near a coordinate. Returns the nearest spots with their distance and a citable url.
get-spot
Get one spot with details and nearby spots, by slug (preferred) or raw id.
playing-conditions
Current outdoor playing conditions (wind, temperature, precipitation) for a location. Wind is the decisive signal for outdoor table tennis.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "spots": {
      "type": "http",
      "url": "https://leagueofspin.com/api/mcp"
    }
  }
}

OpenAPI spec

10 paths, read 2026-10-19. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.