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Memory and knowledge · MCP server

ContextStream MCP Server: MCP server, setup and security

ContextStream MCP Server is an open-source MCP server that lets an AI agent retrieve code and track decisions through persistent coding memory. Its repository has 44 stars and its last commit is from October 24, 2026 and it is licensed under MIT.

Actively maintainedNeeds secretsRemote server

What ContextStream MCP Server does

According to its repository: “Persistent memory for AI coding tools with semantic code search, knowledge graphs, impact analysis and decision tracking.”

An MCP server gives an AI agent extra tools it calls during the conversation: the agent reads their description, decides to use them and gets the result back. ContextStream MCP Server is listed under Memory and knowledge, a category of 250 servers in the directory, where it ranks #110 by stars.

Topics declared by the repository: ai-memory, claude, context-management, cursor, windsurf, gemini-cli-extension.

Installing and connecting ContextStream MCP Server

Distribution modes declared in the official MCP registry:

  • npm package (Node.js, usually started with npx)
  • remote server (streamable-http): you connect to it by URL, with nothing to install locally

Like any MCP server, you declare it in your client's configuration (Claude Desktop, Claude Code, Cursor, VS Code, Codex…): a name, the command that starts it or its URL, and any environment variables. The client then starts it and lists its tools. Project language: TypeScript. Listed systems: macOS, Windows, Linux.

The registry lists one secret variable to provide (API key, access token). Keep them in the client's environment variables, never in a shared file or a repository.

Security: what to check

An MCP server runs code with the rights you give it, and the model reads its tool descriptions: a malicious or compromised server can hijack the agent. Read the code, or pick a maintained and widely used server, before connecting it.

Points found for ContextStream MCP Server:

  • Secrets: the server acts with your credentials. Create a dedicated key with minimum rights and an expiry date.

Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.

Project activity and maintenance

Created on December 12, 2025, the contextstream/mcp-server repository has 44 stars and 12 forks, with 5 open issues. It has more stars than 50% of the servers in the directory. It received changes this month. Version published in the registry: 1.0.28 (October 22, 2026).

Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.

Context7Context7 : 63.6K63.6KHindsightHindsight : 53.4K53.4KCogneeCognee : 32.7K32.7KSkill SeekersSkill Seekers : 15.2K15.2KHonchoHoncho : 7.8K7.8KBasic memoryBasic memory : 4.3K4.3KNoteDiscoveryNoteDiscovery : 2.8K2.8KMemantoMemanto : 2.3K2.3KContextStream MCP ServerContextStream MCP Server : 4444
GitHub stars of the most followed servers in the category (log scale); ContextStream MCP Server in orange. Checked October 25, 2026.

Verdict

ContextStream MCP Server is a reasonable choice; check the points below before connecting it.

Strengths

  • Active project: recent commit
  • Listed in the official MCP registry
  • Usable remotely, without installation
  • Permissive licence (MIT)

Limitations

  • Requires an API key or token

Avoid if…

  • You do not want to give credentials to an agent

Frequently asked questions

How do I install ContextStream MCP Server?

ContextStream MCP Server is distributed as npm package (Node.js, usually started with npx) and a remote server. Add it to your client's MCP configuration (Claude Desktop, Cursor, VS Code…) following the README of contextstream/mcp-server.

Is ContextStream MCP Server free?

The code is published under the MIT licence and can be used free of charge. It needs an API key: the service it connects to may be paid.

Is ContextStream MCP Server safe?

Points to watch: secrets. Give it minimum rights and approve sensitive actions.

Is it an official server?

It is published in the MCP registry under the verified namespace io.contextstream, which shows the publisher controls that domain.

What are the alternatives to ContextStream MCP Server?

In the same category: Context7, Basic memory, Hindsight, and Cognee. Context7 and Basic memory score higher on our grid.

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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score