ContextStream MCP Server
io.contextstream/mcp
answering
ContextStream is answering right now. Last checked 12 min ago. Last commit 16 Jul 2026.
Persistent memory and cross-session learning for AI coding assistants (hosted remote MCP).
Uptime history
39 hours of history · worst hour 0%
39 hours agonow
92.3%
Uptime 24h
84 of 91 checks
—
Tools
hidden behind auth
159 ms
Response time
average over 24h
39
Stars
last commit 16 Jul 2026
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.
run in your terminal
claude mcp add mcp --transport http https://mcp.contextstream.io/mcp?default_context_mode=fast&src=registry~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"mcp": {
"url": "https://mcp.contextstream.io/mcp?default_context_mode=fast\u0026src=registry"
}
}
}~/.codex/config.toml
[mcp_servers.mcp]
url = "https://mcp.contextstream.io/mcp?default_context_mode=fast&src=registry".cursor/mcp.json
{
"mcpServers": {
"mcp": {
"url": "https://mcp.contextstream.io/mcp?default_context_mode=fast\u0026src=registry"
}
}
}.vscode/mcp.json
{
"mcpServers": {
"mcp": {
"url": "https://mcp.contextstream.io/mcp?default_context_mode=fast\u0026src=registry"
}
}
}This endpoint answered with an authorization challenge — the server is running, but you need an API key or OAuth to use it.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://mcp.contextstream.io/mcp?default_context_mode=fast&src=registry | streamable-http | needs key | 149 ms | 12 min ago |
ContextStream — questions
Answers built from our own checks of this server.
Why is there no tool list for ContextStream?
The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 92.3% of checks in the last 24 hours got a reply.
Is ContextStream working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 84 of 91 checks got a reply (92.3%), average response time 159 ms. The bar chart above shows every period we have measured.
How do I connect ContextStream?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You will need your own key or an OAuth login: it refuses anonymous clients.
Does ContextStream need an API key?
Yes. Every time we knock, ContextStream answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.
How fast is ContextStream?
It answers our handshake in 159 ms on average, which is faster than 71% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is ContextStream open source?
Yes — it is published under the MIT licence, written in TypeScript, 39 stars on GitHub and 4 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.