# BJJ Square (remote · bjjsquare.com)

BJJ and grappling gyms worldwide, plus upcoming competitions. Free, read-only.

- Trust score: 76/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-07

## Components

- remote · `bjjsquare.com`: 76/100 (this document), [markdown](https://verifymcp.io/servers/com-bjjsquare-bjjsquare/bjjsquare.md), [page](https://verifymcp.io/servers/com-bjjsquare-bjjsquare/bjjsquare)

## Channel facts

- Endpoint: `https://bjjsquare.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-07.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 74/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 771 tokens (~192/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 20/100
  - Stability observed for 6 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the BJJ Square MCP server?

BJJ Square is a hosted endpoint at https://bjjsquare.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http com-bjjsquare-bjjsquare 'https://bjjsquare.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-bjjsquare-bjjsquare": {
      "url": "https://bjjsquare.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-bjjsquare-bjjsquare": {
      "type": "http",
      "url": "https://bjjsquare.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-bjjsquare-bjjsquare]
url = "https://bjjsquare.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-bjjsquare-bjjsquare": {
      "type": "remote",
      "url": "https://bjjsquare.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-bjjsquare-bjjsquare --url 'https://bjjsquare.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-bjjsquare-bjjsquare:
    url: "https://bjjsquare.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-bjjsquare-bjjsquare": {
      "Transport": "http",
      "Url": "https://bjjsquare.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-bjjsquare-bjjsquare -t streamable-http -u 'https://bjjsquare.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-bjjsquare-bjjsquare": {
      "type": "http",
      "url": "https://bjjsquare.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-07 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 20. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-04 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-02 (score 74, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-01 (score 73)

First indexed and scored.

## MCP tools (4)

### `find_gyms` (~265 tokens)

Find BJJ gyms

Find Brazilian jiu-jitsu and grappling gyms by city, by country, or near a point. Give at least one of: city, country, or lat+lng. Returns at most 25 gyms per call (no pagination: narrow the area for more specific results). Each gym has a link to its public page on bjjsquare.com, where contacts and full details are shown. Use get_gym with the slug for the class schedule and what the gym offers.

Input parameters:

- `city` (string): City name, in the local language or in English (e.g. "Milano" or "Milan").
- `country` (string): ISO 3166-1 alpha-2 country code, e.g. IT. Recommended with city, to avoid same-name cities.
- `lang` (string): Language of the returned bjjsquare.com links: it, en, es, pt, fr or de. Default en.
- `lat` (number): Latitude of the search center.
- `limit` (integer): Max results. Default 10, max 25.
- `lng` (number): Longitude of the search center.
- `radius_km` (number): Search radius around lat/lng in km. Default 25, max 100.

### `get_gym` (~131 tokens)

Get a BJJ gym

Public details of one gym by its slug (from find_gyms): address, website, affiliation, what it offers, class schedule when the gym has published one, and when the schedule was last updated. Only known facts are returned: a missing field means unknown, not "no". Phone and email are on the gym page linked in the result.

Input parameters:

- `lang` (string): Language of the returned bjjsquare.com links: it, en, es, pt, fr or de. Default en.
- `slug` (string, required): Gym slug, e.g. as returned by find_gyms.

### `list_places` (~103 tokens)

List covered places

Countries covered by BJJ Square with gym counts, or, with a country code, the cities of that country with gym counts (largest 200). Use it to check coverage before find_gyms.

Input parameters:

- `country` (string): ISO 3166-1 alpha-2 code. Omit to list countries.
- `lang` (string): Language of the returned bjjsquare.com links: it, en, es, pt, fr or de. Default en.

### `find_competitions` (~187 tokens)

Find upcoming BJJ competitions

Upcoming BJJ and grappling competitions from federation and organizer calendars (IBJJF, AJP, Smoothcomp and others), by country and date range. Returns at most 10 per call with the link to the organizer for registration, plus the BJJ Square calendar page for the full list.

Input parameters:

- `country` (string): ISO 3166-1 alpha-2 code. Omit for worldwide.
- `from` (string): Start date YYYY-MM-DD. Default today; past dates are moved to today.
- `lang` (string): Language of the returned bjjsquare.com links: it, en, es, pt, fr or de. Default en.
- `limit` (integer): Max results. Default 5, max 10.
- `to` (string): End date YYYY-MM-DD. Default from + 90 days, max from + 366 days.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-bjjsquare-bjjsquare/bjjsquare#diagnostics

## Score history

- 2026-10-07: 76
- 2026-10-05: 75
- 2026-10-04: 75
- 2026-10-03: 74
- 2026-10-02: 74
- 2026-10-01: 73

## Common questions

### What is the BJJ Square MCP server?

BJJ Square is an MCP server listed in the public MCP registry as com.bjjsquare/bjjsquare. BJJ and grappling gyms worldwide, plus upcoming competitions. Free, read-only. This page covers its hosted endpoint (https://bjjsquare.com/mcp).

### Is the BJJ Square MCP server safe to use?

BJJ Square scores 76 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the BJJ Square MCP server expose?

BJJ Square exposes 4 tools: find_gyms, get_gym, list_places, find_competitions. Their descriptions and schemas cost roughly 686 tokens of context every time the server is loaded.

### Does the BJJ Square MCP server require authentication?

No. We connected to BJJ Square without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the BJJ Square MCP server still maintained?

BJJ Square is still listed as active in the MCP registry. We last reached this channel on 7 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://bjjsquare.com/mcp
- Website: https://bjjsquare.com/en/ai-assistants
- Changelog RSS feed: https://verifymcp.io/servers/com-bjjsquare-bjjsquare/bjjsquare.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-bjjsquare-bjjsquare/bjjsquare.json
- HTML version of this page: https://verifymcp.io/servers/com-bjjsquare-bjjsquare/bjjsquare