JKTJJ MCP Server

Name: JKTJJ MCP Server
Author: jktjj

by jktjjversion 0.1.0i★ –iRuns in the cloud

Registry nameio.github.jktjj/jktjj-mcp

Install

Overview

Description from the maker (original English)

BJJ gym, coach, event, and city data for AI agents. Free base tools, x402-paid premium.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.jktjj.com/mcp

Run this in your terminal

claude mcp add --transport http jktjj https://mcp.jktjj.com/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "jktjj": {
      "url": "https://mcp.jktjj.com/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "jktjj": {
      "type": "http",
      "url": "https://mcp.jktjj.com/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.jktjj.com/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account jktjj, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

More stars than 0% of the other 32706 servers in this category
Published to the registry more recently than 16% of the other 32706 servers in this category
Basic checks equal to or better than 100% of the other 32706 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is JKTJJ MCP Server safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 4 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Kanal Varna — drains, leaks & plumbing (Varna, BG)

Alternatives

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

JKTJJ MCP Server

MCP server for AI agent access to JKTJJ's structured BJJ data — gyms, coaches, events, and cities worldwide.

Install

opencode

Add to your opencode.json:

"mcp": { "jktjj": { "type": "remote", "url": "https://mcp.jktjj.com/mcp", "enabled": true } } }

Claude Desktop

Add to claude_desktop_config.json:

"mcpServers": { "jktjj": { "type": "url", "url": "https://mcp.jktjj.com/mcp" } } }

Cursor

Settings → MCP Servers → Add:

Name: jktjj
Type: url
URL: https://mcp.jktjj.com/mcp

Smithery

npx @smithery/cli mcp add jktjj-com/jktjj-mcp

MCP Inspector

npx @modelcontextprotocol/inspector

Then connect to https://mcp.jktjj.com/mcp.

Remote URL

https://mcp.jktjj.com/mcp

Tools

Free Tools (no auth required)

Tool	Description
`list_cities`	List supported cities, filterable by country
`get_city`	Full city details by slug
`list_gyms`	Filtered gym list (city, gi/nogi, open mat, affiliation, instructor)
`get_gym`	Full gym profile by city + gym slug
`list_events`	Filtered event list (city, date range, type)
`get_event`	Full event details by slug

Premium Tools (x402 USDC — $0.005–$0.02/call)

Tool	Description	Price
`search_schedule`	Search schedules by day, time, class type across a city	$0.02
`find_open_mats`	Open mat sessions by city and day	$0.005
`search_jktjj`	Cross-index text search (cities, gyms, coaches, events)	$0.005
`list_coaches`	Filtered coach list (city, affiliation)	$0.005
`get_coach`	Full coach profile by slug	$0.005
`get_schedule`	Weekly schedule for a gym or all gyms in a city	$0.005
`bulk_export`	City-level data export (gyms, events, coaches)	$0.005

Resources

URI	Description
`jktjj://catalog`	API catalog with endpoints, pricing, and optimization hints
`jktjj://agent-guide`	Routing instructions, decision defaults, and query examples
`jktjj://llms.txt`	JKTJJ llms.txt content
`jktjj://snapshot`	Current snapshot version and counts

Prompts

Prompt	Description
`plan_training_trip`	Build a training itinerary for a city and date range
`find_open_mat`	Find open mat sessions in a city on a specific day
`summarize_week_in_bjj`	Get a weekly summary of BJJ events

Agent Discovery

External agents and bots can discover how to use the MCP server through these public surfaces:

Surface	URL	Format
Well-known skill	`https://jktjj.com/.well-known/jktjj/SKILL.md`	Markdown
MCP resource	`jktjj://agent-guide`	Markdown (after connecting)
llms.txt	`https://jktjj.com/llms.txt`	Plain text
Catalog (HTTP)	`https://jktjj.com/api/x402/v1/catalog`	JSON
For Developers	`https://jktjj.com/for-developers`	HTML

The well-known SKILL.md contains routing instructions, decision defaults, and query examples. Agents can fetch it via HTTP GET without connecting to the MCP server.

Registries

Registry	Status	URL
MCP Registry	Pending	https://registry.modelcontextprotocol.io
Smithery	Published	https://smithery.ai/server/jktjj-com/jktjj-mcp
Cline Marketplace	Submitted	https://github.com/cline/mcp-marketplace/issues
MCP.Directory	Submitted	https://mcp.directory
MCP.so	Submitted	https://mcp.so

Development

Prerequisites

Node.js
Cloudflare account with Workers enabled
Domain mcp.jktjj.com configured in Cloudflare DNS

Quick Start

npm install

npm run dev

The server starts on http://localhost:8787.

Deploy

npm run deploy

Tests

npm test

Architecture

The MCP server fetches a data snapshot from jktjj.com/api/x402/data-snapshot on boot and refreshes it every 5 minutes. All tools query from this in-memory snapshot — no direct data file access at runtime.

jktjj.com/data/*  →  /api/x402/data-snapshot  →  mcp Worker (in-memory cache)  →  MCP tools

License

MIT

JKTJJ MCP Server

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Kanal Varna — drains, leaks & plumbing (Varna, BG)

README from the maker

JKTJJ MCP Server

Install

opencode

Claude Desktop

Cursor

Smithery

MCP Inspector

Remote URL

Tools

Free Tools (no auth required)

Premium Tools (x402 USDC — $0.005–$0.02/call)

Resources

Prompts

Agent Discovery

Registries

Development

Prerequisites

Quick Start

Deploy

Tests

Architecture

License