Crosmos

Name: Crosmos
Author: crosmos-labs

@crosmos-labs

About Crosmos

Persistent memory for AI agents. Give your coding assistant organizational context that compounds — search memories with hybrid retrieval, store anything with auto entity extraction, and query a living knowledge graph that gets smarter over time.

#context #ai #memory

Basic information

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "crosmos-memory": {
      "command": "npx",
      "args": [
        "-y",
        "@crosmos/crosmos-mcp"
      ],
      "env": {
        "CROSMOS_API_KEY": "<YOUR_API_KEY>"
      }
    }
  }
}

Tools

Hybrid retrieval — semantic + keyword + graph traversal in one query

Store any content with automatic entity and relationship extraction

List available memory spaces

Verify API connectivity and status

Overview

What is Crosmos?

Crosmos is a persistent memory layer for AI agents. It enables agents to store and retrieve organizational knowledge across sessions using a temporal knowledge graph with hybrid retrieval.

How to use Crosmos?

Install via npx @crosmos/crosmos-mcp setup which auto-detects MCP clients, or configure manually with a JSON block setting the CROSMOS_API_KEY (obtainable at console.crosmos.dev). Supported clients include Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, opencode, Cline, Roo-Cline, and Zed.

Key features of Crosmos?

Graph-native memory with entity and relationship linking
Temporal – every fact is timestamped for time‑travel queries
Hybrid retrieval (semantic, keyword, graph, temporal)
Automatic entity and relationship extraction from raw text
Multi‑space isolation for projects, teams, or agents
Four retrieval signals fused into a single ranked result

Use cases of Crosmos?

Store and retrieve organizational knowledge across AI agent sessions
Query the knowledge graph as it existed at any past point in time
Isolate memory by project, team, or agent using named spaces
Allow agents to maintain persistent context without resets
Enable hybrid search combining semantic meaning with graph traversal

FAQ from Crosmos

What is Crosmos and how does it differ from flat vector databases?

Crosmos uses a temporal knowledge graph that links memories as entities and relationships, not just flat vectors, enabling richer context and time

Comments

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