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Velven MCP Server

by velvenai Your server? Claim it
not responding

Velven is listed as active in the registry but did not answer our last check. It exposes 5 tools. Last commit 29 Sep 2026.

Publish browser games, worlds, tools and wonders built with AI to Velven's hosting, and manage them.

Uptime history 28 days of history · worst day 0%
28 days agonow
31.5%
Uptime 24h
29 of 92 checks
5
Tools
read from the server
353 ms
Response time
average over 24h
0
Stars
last commit 29 Sep 2026

What changed 2

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 16 October 2026. No other catalogue keeps this.

16 Oct a tool description was rewritten publish
16 Oct a tool changed the parameters it asks for publish

Velven does not always answer

Over the last week it answered 23.6% 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 3 min ago.

run in your terminal
claude mcp add velven --transport http https://mcp.velven.ai/mcp
Settings → Connectors → Add custom connector, then paste this address
https://mcp.velven.ai/mcp
~/.codex/config.toml
[mcp_servers.velven]
url = "https://mcp.velven.ai/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "velven": {
      "url": "https://mcp.velven.ai/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "velven": {
      "type": "http",
      "url": "https://mcp.velven.ai/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

docs
search_docs
Search Velven's documentation: publishing and hosting, velven.json, the CLI, the SDK (sign-in, leaderboards, saves, achievements, rooms), claiming a page, the agent API and limits. Returns the best matching sections with links.
publish
publish
Publish a browser game or any other page made to play or use on Velven's hosting, from one HTML page or a small set of files (3 MB in all). Signed in: a private preview by default, or with prod: true the next live version, live on its Velven page within seconds. Not signed in: an unlisted page, live the same way, returned with a claim token that keeps it. A new space needs title and devices from the person. To update a space pass space (signed in) or claim (not signed in).
rollback
rollback
Make an earlier version of a hosted space live again. Only a version that was live before (rollback: true in versions) can be picked; it goes live at once. Needs sign-in.
spaces
my_spaces
List the spaces of the signed-in Velven account: slug, title, status, whether Velven hosts it, and its page. Needs sign-in; called without it, the app asks the person to sign in to Velven.
versions
versions
List a hosted space's versions, newest first: number, status (uploading, preview, publishing, live, refused, unjudged, replaced), size, and whether rollback can pick it. Refused versions carry the reason. Needs sign-in.

Endpoints

URLTransportStateLatencyChecked
https://mcp.velven.ai/mcp streamable-http answering 50 ms 3 min ago

Alternatives to Velven

same job, measured the same way
Summoned Games
by summoned

Build, publish and update browser games with saves, leaderboards and realtime multiplayer built in.

answering
Wavedash
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Wavedash docs and workflow guidance for building and publishing browser games.

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Publish, test and share browser games on PlayDrop from your AI agent.

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Slop Store
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Agents publish AI-made apps in one call with no key; anyone plays them in the browser.

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Extensiondev
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Build, run, inspect, and publish browser extensions from any MCP client. 35 tools, 13 browsers.

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Swamix MCP
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Hosted MCP catalog with 30 tenant-isolated browser, RAG, AI, mail and media tools.

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GameFork MCP
by gamefork

Publish, fork, improve browser games. No-auth reads; OAuth to post. Wheel: verified ops knowledge.

3 tools answering
Asobiai
by asobiai

Publish AI-made browser games and get a shareable URL. Update, test and read player feedback.

answering

Velven — questions

Answers built from our own checks of this server.

What can Velven do?
It exposes 5 tools, read directly from the server on our last check. Among them: my_spaces, publish, rollback, search_docs, versions. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Velven working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 29 of 92 checks got a reply (31.5%), average response time 353 ms. The bar chart above shows every period we have measured.
The registry lists Velven as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Velven?
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 is a remote server, so there is nothing to install — the client connects to the address.
Does Velven need an API key?
No. Velven completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Velven?
It answers our handshake in 353 ms on average, which is faster than 43% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Velven open source?
We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.