Orbismo

Build a world your AI knows. Orbismo is a world-building knowledge platform for AI. Keep track of the people, places, events, and details that make up your world — then any AI you use can draw on it in any chat, so you never have to start over.

Connect the Orbismo MCP server and your AI reads and writes a connected knowledge graph you own: entities, relationships, timelines, lore, and your own world instructions. Organize separate worlds for your life, your work, and the stories you're writing — and share a world to build together with your team.

What you can do

• Capture your world — create and update entities (people, places, events, references, rules, and more) through natural conversation.
• Connect the dots — map relationships between entities and traverse an entity's neighborhood.
• Recall anything — search entities and lore, and read events back in chronological order on a timeline.
• Steer your AI — give a world its own standing instructions so any connected agent behaves the way you want.
• Keep worlds separate — switch between worlds, and share one to collaborate.

Getting started

1. Create a free Orbismo account at orbismo.com. New accounts get a coupon code for a free world to start building right away.

2. Add the server to your MCP client (Claude, ChatGPT, Cursor, Claude Code, or any MCP client):

   {
     "mcpServers": {
       "orbismo": {
         "url": "https://app.orbismo.com/api/v1/mcp"
       }
     }
   }
   

3. Sign in when your client opens the browser — OAuth handles the rest. No secret to copy or store.

Full setup guides for each client are at help.orbismo.com/connect-ai.

Two ways to connect

• Connector URL (all worlds): https://app.orbismo.com/api/v1/mcp — sign in with OAuth. Recommended.
• Per-world API key: generate a key (oc_live_…) under World Settings → API Connections and use the world-specific URL https://app.orbismo.com/api/v1/worlds/<world_id>/mcp with an Authorization: Bearer header. You set read-only or read-write access when you create the key.

Transport & auth

• Transport: Streamable HTTP (the modern MCP transport)
• Auth: OAuth 2.1 + PKCE for the connector, or a per-world API key for world URLs
• Access: read-only and read-write both supported, scoped to your role
• Hosting: fully hosted at app.orbismo.com — nothing to run locally

Links

• Home: orbismo.com
• Docs / connect guides: help.orbismo.com
• Support: orbismo.com/support
• Privacy: orbismo.com/privacy · Terms: orbismo.com/terms-of-service