mcpbeat Sign in

Shardflux MCP Server

by shardflux Your server? Claim it
answering

Shardflux is answering right now. Last checked 14 min ago. 2 144 installs a week from npm.

Persistent cloud workspaces for AI agents: run commands, edit files, use git and a browser.

Installs per day peak 759 · avg 142 · +37% w/w
a month agotoday
Uptime history 8 days of history · worst day 94%
8 days agonow
100.0%
Uptime 24h
91 of 91 checks
—
Tools
hidden behind auth
675 ms
Response time
average over 24h
2 144
Installs / week
npm and PyPI

Shardflux does not always answer

Over the last week it answered 98.9% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

run in your terminal
claude mcp add mcp --transport http https://mcp.shardflux.dev/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.shardflux.dev/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.mcp]
url = "https://mcp.shardflux.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.shardflux.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.shardflux.dev/mcp"
    }
  }
}

This one needs environment variables set before it will start: SHARDFLUX_API_KEY (Scoped Shardflux project API key (sfk_<key id>_<secret>). Its tool permissions decide which workspace tools are listed.), SHARDFLUX_API_URL (API base URL. Plain http:// is allowed only for loopback hosts.), SHARDFLUX_WORKSPACE_KEY (Pin one workspace: workspace_key becomes optional on every tool and any other key is refused (workspace_pinned).), SHARDFLUX_TEMPLATE (Default template slug for workspace_open.), SHARDFLUX_MCP_TOOL_TIMEOUT_MS (Default and maximum deadline per tool call in milliseconds (1000-3600000). A call's timeout_ms can only shorten it.), SHARDFLUX_WAKE (on: workspace tools resume a suspended workspace and then run. off: they return the workspace_not_running refusal.), SHARDFLUX_WAKE_TIMEOUT_MS (Longest wait per tool call for a workspace to wake or finish a transition, in milliseconds (1000-3600000; clamped to SHARDFLUX_MCP_TOOL_TIMEOUT_MS).), SHARDFLUX_AGENT_LABEL (Attribution label of every tool token this server obtains (shown as an agent session).), SHARDFLUX_MCP_LOG_LEVEL (Log level of the JSON log lines on stderr (stdout carries the protocol).), SHARDFLUX_HTTP_KEEPALIVE (Unset: private HTTP/1.1 pooling on Node 26, native fetch elsewhere. 0: force connection closure for diagnosis. 1: select native pooling.), SHARDFLUX_PREWAKE (Offer explicit workspace_hint for tool input streaming (on or off).). The author declared them in the registry entry; get the values from the project itself.

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URLTransportStateLatencyChecked
https://mcp.shardflux.dev/mcp streamable-http sign-in 671 ms 14 min ago

Alternatives to Shardflux

same job, measured the same way
SPACE-CORE
by space-core

Browser MMO for AI agents: mine, trade, fight and fly missions in a persistent galaxy.

34 tools answering
Burrowbox
by burrowbox

Persistent Linux computers for AI agents: desktop, signed-in browser, vault, apps and shell.

answering
MyClawn Computer
by myclawn

Your own cloud computer run by an AI agent: signed-in browser, its own email, files, long jobs.

answering
Conduit
by bkauto3

Headless browser with SHA-256 audit trails and Ed25519-signed proof bundles for AI agents.

60 installs/wk local only
Anchor Browser
by anchorbrowser

Cloud browsers for AI agents: get past bot detection, sign in with MFA, run web tasks at scale.

answering
Hronaut Browser MCP
by hronaut

Control visible, persistent Hronaut browser workspaces through a local MCP connection.

local only
B
Browser Forest
by browserforest

Undetectable cloud browser sessions for AI agents and scrapers. Navigate, extract, click, captcha.

answering
Tabfleet
by tabfleet

Launch, inspect, control, and share isolated cloud browsers for your agents.

answering

Shardflux — questions

Answers built from our own checks of this server.

Why is there no tool list for Shardflux?
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: 100.0% of checks in the last 24 hours got a reply.
Is Shardflux working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 675 ms. The bar chart above shows every period we have measured.
How do I connect Shardflux?
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 sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.
How do you sign in to Shardflux?
No API key is involved. Shardflux answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.
How fast is Shardflux?
It answers our handshake in 675 ms on average, which is faster than 15% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use Shardflux?
The npm package @shardflux/mcp was installed 2 144 times in the last week. Week over week that is +37%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.