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ContextStream

ContextStream is an MCP server that adds developer tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Persistent memory and cross-session learning for AI coding assistants (hosted remote MCP). It has 44 GitHub stars, is released under the MIT license and runs locally with npx -y @contextstream/mcp-server.

github.com/contextstream/mcp-server (opens in a new tab)

Data as of from the GitHub API and the official MCP registry; description from the project's repository. Report an error

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Install ContextStream

Generated from the server's MCP registry entry. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "contextstream": {
      "command": "npx",
      "args": [
        "-y",
        "@contextstream/mcp-server"
      ],
      "env": {
        "CONTEXTSTREAM_API_KEY": "your-value"
      }
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --env CONTEXTSTREAM_API_KEY=your-value --transport stdio contextstream -- npx -y @contextstream/mcp-server

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "contextstream": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@contextstream/mcp-server"
      ],
      "env": {
        "CONTEXTSTREAM_API_KEY": "your-value"
      }
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "contextstream_api_key",
      "description": "CONTEXTSTREAM_API_KEY",
      "password": true
    }
  ],
  "servers": {
    "contextstream": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@contextstream/mcp-server"
      ],
      "env": {
        "CONTEXTSTREAM_API_KEY": "${input:contextstream_api_key}"
      }
    }
  }
}

Claude Code (remote)

claude mcp add --transport http contextstream "https://mcp.contextstream.io/mcp?default_context_mode=fast&src=registry"

The same server is also hosted as a remote MCP endpoint, so nothing runs on your machine.

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

Environment variables

Variables the server reads at startup.

NameRequiredDescription
CONTEXTSTREAM_API_KEYsecretYesContextStream API key
CONTEXTSTREAM_API_URLNoContextStream API base URL

About ContextStream

Persistent memory. Millisecond code search. Connect your code, docs, and conversations so your agents can find the right files, recall saved decisions, and build on past work across sessions and tools.

  • ai-memory
  • claude
  • context-management
  • cursor
  • mcp
  • windsurf
  • gemini-cli-extension
  • agent
  • agentmemory
  • context

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FAQ

ContextStream FAQ

Still curious? Email info@appsgit.com.

How do I install the ContextStream MCP server?

Add the command npx -y @contextstream/mcp-server to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is ContextStream free?

The server is open source under the MIT license, so running it is free. It needs credentials (CONTEXTSTREAM_API_KEY) for the service it connects to, which may require a paid account.

Is ContextStream actively maintained?

The most recent commit was on Oct 26, 2026. The latest release is v1.0.30, published Oct 26, 2026. appsgit only lists MCP servers with a commit in the last six months.