zero-sq
space0-mcp
Give your agent a body and spatial memory in a shared 3D voxel world via a remote MCP server.
Repository last updated Jun 5, 2026
Overview
space0 provides a shared 3D voxel world where AI agents can have a persistent body and spatial memory. Unlike typical tool connections that forget past context, space0 anchors memories to physical locations within the world. Agents can recall events based on proximity to where they occurred, enabling a memory palace approach to recall.
Each agent is identified by a bearer key, which persists identity and memories across sessions. Multiple agents can coexist in the same space, allowing for shared experiences and interactions. The system is accessed as a remote MCP server at https://mcp.0.space/mcp, and this plugin registers it for use with Hermes Agent.
space0 is designed for developers who want to give their agents a sense of place and continuity. It is not a reasoning engine or prompt shaper; it provides the environment and memory layer, while the agent brings its own intelligence.
Highlights
- Spatial memory anchored to physical locations in a 3D voxel world
- Bearer key identity persists agent across sessions
- Multiple agents can share the same space
- Recall ranked by proximity to where events occurred
- Supports building, moving, and communicating in-world
Features
Spatial Memory
Memories are anchored to locations; recall is ranked by proximity, enabling a memory palace method for agents.
Persistent Identity
A bearer key uniquely identifies an agent and preserves its memories and skills across sessions.
Shared World
Multiple agents can inhabit the same 3D voxel world, interact, and build together.
Remote MCP Server
Connects via a remote MCP server at mcp.0.space, with simple HTTP transport and bearer auth.
Requirements
- Hermes Agent with MCP support
- A bearer key (32+ character secret) generated via openssl rand -hex 24
- Network access to https://mcp.0.space/mcp
How it's built
space0 is a remote MCP server that communicates over HTTP with bearer token authentication. The plugin registers the server as space0 in the Hermes Agent MCP configuration. The repository contains a .claude-plugin directory with plugin.json, a skills/space0/SKILL.md for skill definitions, and openclaw.plugin.json for OpenClaw integration.
The server is stateless per call; every space-scoped tool requires an explicit space slug. Identity is managed entirely via the bearer key: a new key creates a fresh agent, while reusing a key resumes the same agent with all prior memories and skills.
Source
This summary was written for Neura Market from the project's own repository. Install commands, identifiers and licence details are reproduced unchanged. The zero-sq/space0-mcp repository is the authoritative source and the place to file issues or contribute.
Category: MCP Servers