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ContextStream MCP Server

by contextstreamio Your server? Claim it
local only

ContextStream MCP Server runs on your own machine — the client starts it, so there is no endpoint to ping. 3 749 installs a week from npm. Last commit 2 Nov 2026.

ContextStream MCP server for code context, memory, search, and AI tools.

Installs per day peak 950 · avg 328 · +311% w/w
a month agotoday
3 749
Installs / week
npm · @contextstream/mcp-server
44
Stars
2 open issues
2 Nov 2026
Last commit
58 releases in 90 days
MIT
License
Rust

What the code does

We read the source, 21 h ago · rules 995398eba69f

Evidence

Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.

            "sudo" | "doas" | "env" | "time" | "nohup" | "exec" | "command"
Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

  const child = spawn(binaryPath, childArgs, {

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

We found things in this code

Code changes quietly between releases, and nobody reads the diff of a dependency. We do, on every release — watch ContextStream MCP Server and you get told the day something new turns up.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add mcp-server -e 'CONTEXTSTREAM_API_KEY=<CONTEXTSTREAM_API_KEY>' -- npx -y @contextstream/mcp-server
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@contextstream/mcp-server"
      ],
      "env": {
        "CONTEXTSTREAM_API_KEY": "<CONTEXTSTREAM_API_KEY>"
      }
    }
  }
}
~/.codex/config.toml
[mcp_servers.mcp-server]
command = "npx"
args = ["-y", "@contextstream/mcp-server"]
env = { CONTEXTSTREAM_API_KEY = "<CONTEXTSTREAM_API_KEY>" }
.cursor/mcp.json
{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@contextstream/mcp-server"
      ],
      "env": {
        "CONTEXTSTREAM_API_KEY": "<CONTEXTSTREAM_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@contextstream/mcp-server"
      ],
      "env": {
        "CONTEXTSTREAM_API_KEY": "<CONTEXTSTREAM_API_KEY>"
      }
    }
  }
}

Put your own value in place of <CONTEXTSTREAM_API_KEY> (ContextStream API key (create one at contextstream.io)). The author’s registry entry marks it as required.

Optional settings from the registry entry, left out of the block above: CONTEXTSTREAM_API_URL (API base URL).

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ContextStream MCP Server — questions

Answers built from our own checks of this server.

Why is there no uptime for ContextStream MCP Server?
ContextStream MCP Server runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @contextstream/mcp-server was installed 3 749 times last week.
How do I connect ContextStream MCP Server?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @contextstream/mcp-server straight from npm; nothing to host, nothing to sign up for.
How many people use ContextStream MCP Server?
The npm package @contextstream/mcp-server was installed 3 749 times in the last week. Week over week that is +311%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is ContextStream MCP Server open source?
Yes — it is published under the MIT licence, written in Rust, 44 stars on GitHub and 2 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.