# Onyx Jiu Jitsu > Martial arts school with friendly atmosphere and welcoming crowd that includes practitioners of all levels. Classes balance intensity and fun with structured sessions in both gi and nogi styles. Environment feels safe and encouraging, suitable for all walks of life. Source: https://www.atly.com/location/OnyxJiuJitsu - Address: 15232 E Hampden Ave Unit A&B, Aurora, Colorado, United States - Phone: +17209799296 - Website: http://www.onyxjiujitsu21.com/ ## What it is good for - Gyms — 10/10 - Kid Friendly — 10/10 - Jiu Jitsu — 10/10 ## What people say - "The Jiu Jitsu community here is so welcoming and supportive." - "This gym is a welcoming and safe place with really skilled practitioners." - "It's a Kid Friendly place where the crew feels like family." ## Good to know - Onyx Jiu Jitsu offers a free class for newcomers interested in trying out. - They provide both gi and nogi classes with a flexible schedule. - Weekly competition classes are invite-only, so check for eligibility. - Classes cater to all skill levels, making it accessible for everyone. - The gym maintains clean mats and a respectful training environment. ## Get this data directly This page comes from the Atly Places API, which scores close to 2 million places against more than 1,400 intents — "nice view", "work friendly", "gluten free", "dog friendly" — from what real reviewers say, with the statements behind every score. - **MCP server:** `https://agentic-api.atly.com/mcp` — connect it in ChatGPT or Claude. Nothing to install. - **Guide for agents:** - **OpenAPI contract:** - **No key needed to start.** `POST https://agentic-api.atly.com/v0/keys` with an email raises the quota. Coverage is densest in the United States, with pockets in Mexico, Israel and Thailand.