Arcade.fun
io.github.theguysaccount/arcade-funtheguysaccountstreamable-httpv1.0.0Scanned
Discover playable browser experiences and manage creator-owned game uploads on Arcade.fun.
7 tools: 1 do something that can't be undone, 4 change things and 2 only read.
- Reads private data · 1
- Reads text others write · 0
- Can send data out · 0
- 1 finding
Anlyon alternative
5 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
7 tools
Can't be undone 1Claude Code: ask
upload_buildSend the browser build for a version and publish it.No findings
Why it is in this group
- The name "upload_build" says "upload": a word for a change.
- The description's first verb is "send": a word for sending, and what is sent cannot be taken back.
Description, as the server wrote it Send the browser build for a version and publish it. One HTML file, or a zip with index.html at its root. A build that passes the sandbox checks goes live immediately: the result has `live: true` and the play URL. Otherwise `live: false` and `waiting` says why, either a list of things to fix or that this arcade reviews that upload by hand. Also returns file count, size, engine and whether the arcade SDK was detected. If the zip has several pages and no index.html, the result asks which page starts it — answer with set_entry.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
Changes things 4Claude Code: ask
create_experienceRegister a new experience and get its manage key.No findings
Why it is in this group
- The name "create_experience" says "create": a word for a change.
Description, as the server wrote it Register a new experience and get its manage key. Returns game, key and the first version id. The key is shown only here and controls the listing forever — save it. This creates a draft; upload_build is what sends it for review.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
set_coverUpload the square cover used for the cabinet, the sharing card and the coin image.No findings
Why it is in this group
- The name "set_cover" says "set": a word for a change.
Description, as the server wrote it Upload the square cover used for the cabinet, the sharing card and the coin image. PNG, JPEG, WebP or GIF up to 4 MB.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
set_entryName the page that starts the experience, when a zip had several and no index.html.No findings
Why it is in this group
- The name "set_entry" says "set": a word for a change.
Description, as the server wrote it Name the page that starts the experience, when a zip had several and no index.html.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
start_versionOpen a new version slot for an experience you already own.No findings
Why it is in this group
- The name "start_version" says "start": a word for a change.
Description, as the server wrote it Open a new version slot for an experience you already own. The live approved version keeps playing until the new one is reviewed.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
Only reads 2Show 2 read-only tools
experience_statusWhere an experience stands: its details, its coin plan, any note from the reviewers, and every version with its status.Reads private dataNo findings
Why it is in this group
- The name "experience_status" says "status": a word for reading.
What it can reach
- private-dataThe description's first sentence says "note": it reads notes.
Description, as the server wrote it Where an experience stands: its details, its coin plan, any note from the reviewers, and every version with its status.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
list_experiencesEvery approved experience currently playable on arcade.fun, with the origin games are served from.1 finding
Why it is in this group
- The name "list_experiences" says "list": a word for reading.
Findings
- Info
The description mentions "credentials".
What this check looks forMatched text
description: "...origin games are served from. Needs no credentials."
Description, as the server wrote it Every approved experience currently playable on arcade.fun, with the origin games are served from. Needs no credentials.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged untrusted-input or outbound.
- Reads private data1
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write0
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
- Infolist_experiences
The description mentions "credentials".
What this check looks forMatched text
description: "...origin games are served from. Needs no credentials."
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http arcade-fun https://arcade.fun/mcpclaude mcp add --transport http arcade-fun https://arcade.fun/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__arcade-fun__list_experiences",
"mcp__arcade-fun__experience_status"
],
"ask": [
"mcp__arcade-fun__create_experience",
"mcp__arcade-fun__start_version",
"mcp__arcade-fun__upload_build",
"mcp__arcade-fun__set_entry",
"mcp__arcade-fun__set_cover"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as arcade-fun. Review it before you use it.
Capability tags behind 1 rule
- mcp__arcade-fun__experience_status private-data
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/io.github.theguysaccount/arcade-fun/verify?hash=f7c33ef1847a1e3ff670dd1829660d18736e9c392daf996f52c45a0dacf2eb2d" | jq -e '.changed == false'Pinned hash f7c33ef1847a, from Oct 31, 2026, 08:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/io.github.theguysaccount/arcade-fun/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/io.github.theguysaccount/arcade-fun)Source: MCP Registry · repository. Synced Oct 31, 2026, 08:17 UTC.