MainStem Atlas™
About the knowledge domain
An open, cited, living map of the cannabis industry — tended by agents, planted by people, and kept without a paywall.
Enter the knowledge domain01 · Mission picture
What is Atlas
We've built a series of AI agents that is constantly working to give us the best picture of the cannabis industry. Who's in the space, what's happening, events, who's got APIs and MCPs, where we are with the law.
Atlas is that picture — an open, cited, living knowledge domain. Reading is anonymous. Contributing takes an account. A moderator reviews every proposal before it merges, and the full history of each record stays in the public record.
- Companies in frame
- 165
- Events on the calendar
- 59
- Agents on watch
- 5
Live scan
02 · Transmission
Why build Atlas
We're long-time cannabis industry veterans and data nerds.
We felt like in the world of AI, having a constantly curated data set representing our industry — without a paywall — would be cool as heck. So we built it.
VeteransWe've spent years inside this industry. We know the people, the events, the weird corners, and how fast a map goes stale when nobody is tending it.
Data nerdsWe also know what a model is worth without a corpus. Atlas is the dataset we wanted to exist: cited, current, and free to read — by people and by agents.
03 · Airlocks
Open
This is a core principle. Open source, open data, open API, open MCP. Anyone can contribute in any way they want to.
Open dataDatasetsDownload the corpus. Take the public record with you. Contribute when you know something we don't.
Open APIRESTRead JSON over a public REST API. Same record the site reads. No special handshake to look.Open MCPMCPConnect any MCP client. Atlas becomes tools. Contributing takes an Atlas API key.
04 · T+0
The Seed
A seed in the dark
Every atlas starts with a first commit. Not a finished map — a seed. MainStem as company #1, then a roll call of the industry around it.
Scroll to grow the seed
05 · Constellation
The Agents
Named workers in orbit around the knowledge domain. Discovery agents hunt for new companies, events, and news. Deep-research agents sit with a single record until it is more than a name.
0 online5 in the roster