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Crosmos MCP Server

@crosmos-labs

代码仓库

基本信息

分类

记忆与知识

传输方式

stdio

作者

crosmos-labs

提交者

Aditya Chaudhary

关于 Crosmos MCP Server

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

Crosmos MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

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

Crosmos MCP Server 工具

4

Search memories in Crosmos Memory Engine using hybrid retrieval. Combines semantic (vector), keyword (full-text), and graph-based retrieval. Requires a space_id — call list_spaces if you don't have one yet.

Add new memories to Crosmos Memory Engine. Content is processed through an extraction pipeline that identifies entities, relationships, and creates structured knowledge graph entries. Requires a space_id — call list_spaces if you don't have one yet.

Check the health status of the Crosmos Memory Engine API

List all memory spaces owned by the authenticated user. Call this to discover available space IDs needed by search_memories and add_memory.

概览

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

常见问题

1

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

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