Ags Extend Sdk MCP Server

Name: Ags Extend Sdk MCP Server
Author: AccelByte

by AccelByteversion 2026.4.0i★ –iRuns in the cloud

Registry nameio.github.AccelByte/ags-extend-sdk-mcp-server

Install

Overview

Description from the maker (original English)

Searchable AccelByte Extend SDK reference (C#, Go, Java, Python) for AI coding assistants

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://{studio}-{game}.prod.gamingservices.accelbyte.io/extend-mcp/{language}

The address contains {…} parts that only you know (such as your account), so copy it and fill them in.

Run this in your terminal

claude mcp add --transport http ags-extend-sdk 'https://{studio}-{game}.prod.gamingservices.accelbyte.io/extend-mcp/{language}'

The address contains {…} parts that only you know (such as your account), so copy it and fill them in.

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "ags-extend-sdk": {
      "url": "https://{studio}-{game}.prod.gamingservices.accelbyte.io/extend-mcp/{language}"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

The address contains {…} parts that only you know (such as your account), so copy it and fill them in.

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "ags-extend-sdk": {
      "type": "http",
      "url": "https://{studio}-{game}.prod.gamingservices.accelbyte.io/extend-mcp/{language}"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://{studio}-{game}.prod.gamingservices.accelbyte.io/extend-mcp/{language}

The address contains {…} parts that only you know (such as your account), so copy it and fill them in.

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account AccelByte, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
The address needs your own account values, so we cannot check it for you
– Not applicable
Sign-in with OAuth
The address needs your own account values, so we cannot check it for you
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

More stars than 0% of the other 32602 servers in this category
Published to the registry more recently than 17% of the other 32602 servers in this category
Basic checks equal to or better than 100% of the other 32602 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Ags Extend Sdk MCP Server safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (2026.4.0) reached the registry 4 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Rystic

Alternatives

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Runs on your computer★ 440MITUpdated 14 months ago

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Runs in the cloud★ 211Updated 2 days ago

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

AGS Extend SDK MCP Server

A Model Context Protocol (MCP) server that gives AI assistants (VS Code Copilot, Cursor, Claude, Gemini, Antigravity) the AccelByte Extend SDK as additional context — so they can answer questions about the SDK and generate correct Extend SDK code.

What It Does

Search Extend SDK symbols (functions and models) by name, tags, or description (fuzzy matching)
Describe specific symbols — parameters, fields, imports, examples, return types, required permissions
Scaffold a new Extend app from a template repository via the create-extend-app prompt

It serves SDK reference for four languages — C#, Go, Java, and Python. You pick the language per connection through the URL path (see Choose your language).

AccelByte hosts the Extend SDK MCP Server for you — you don't need to install or run anything locally. Just point your AI assistant at the hosted MCP URL for your language. There's no sign-in: the server only exposes read-only SDK reference data. Prefer to run it yourself? See Running Locally & Self-Hosting.

Quick Install

Paste this into your AI coding assistant — it will fetch the install guide, ask you a couple of questions, and configure everything for you:

Install the AGS Extend SDK MCP server for me. Fetch and follow the instructions at

https://raw.githubusercontent.com/AccelByte/ags-extend-sdk-mcp-server/refs/heads/master/INSTALL.md

Works in VS Code Copilot, Cursor, Claude Code, Antigravity, and Gemini CLI.

Claude Desktop users: The simplest path is Settings → Connectors → Add custom connector (Name: extend-sdk, URL: your MCP URL) — no AI installer needed. See Claude Desktop below.

If you want to use the Quick Install prompt above, switch to the Code tab first (Chat and Cowork can't edit your config file).

Prefer to do it yourself? See Manual Install below.

Manual Install

Step 1: Choose your language and get your URL

The MCP URL is the hosted server's base URL followed by /extend-mcp/{language}:

https://<mcp-server-host>/extend-mcp/{language}

Language	URL path
C#	`/extend-mcp/csharp`
Go	`/extend-mcp/go`
Java	`/extend-mcp/java`
Python	`/extend-mcp/python`

is the host of your organization's deployment — ask your AccelByte administrator if you're not sure.
One hosted instance serves every language. To switch language later, just change the trailing path segment (e.g. /extend-mcp/python → /extend-mcp/go). Requesting an unknown language returns HTTP 400.
The base path (/extend-mcp) with no language serves the server's configured default language.

No hosted instance? You can run the server yourself with Docker — see Running Locally & Self-Hosting.

Step 2: Configure your client

The server uses Streamable HTTP transport. Clients that support HTTP transport connect to the URL directly. Clients that only support stdio transport use mcp-remote as a bridge.

Need `mcp-remote`? It runs via npx, so you need Node.js 18+ with `npx` available — verify with npx --version. No global install required.

Substitute your URL from Step 1 wherever you see below.

Visual Studio Code (Copilot)

.vscode/mcp.json in your workspace (or user settings.json):

"servers": { "extend-sdk": { "type": "http", "url": " " } } }

If your client can't reach an HTTP server, swap to: { "command": "npx", "args": ["-y", "mcp-remote", " "] }.

See the VS Code MCP documentation.

Cursor

.cursor/mcp.json in your workspace (or user settings):

"mcpServers": { "extend-sdk": { "type": "http", "url": " " } } }

If your client can't reach an HTTP server, swap to: { "command": "npx", "args": ["-y", "mcp-remote", " "] }.

See the Cursor MCP documentation.

Claude Code

claude mcp add --transport http extend-sdk <URL>

Fallback (stdio-only environments): claude mcp add extend-sdk -- npx -y mcp-remote .

See the Claude Code MCP documentation.

Antigravity

mcp_config.json in your project root:

"mcpServers": { "extend-sdk": { "type": "http", "url": " " } } }

If your client can't reach an HTTP server, swap to: { "command": "npx", "args": ["-y", "mcp-remote", " "] }.

See the Antigravity MCP documentation.

Gemini CLI

gemini mcp add --transport http extend-sdk <URL>

Fallback (stdio-only environments): gemini mcp add extend-sdk -- npx -y mcp-remote .

See the Gemini CLI MCP documentation.

Claude Desktop

Option A — Custom Connector (recommended)

Open Settings → Connectors → Add custom connector (under the "Customize" area).
Fill in Name: extend-sdk and Remote MCP server URL: your from Step 1.
Save.

Don't see "Add custom connector"? Some Team and Enterprise plans disable custom connectors via workspace policy. If the option is missing or greyed out, use Option B.

Option B — `mcp-remote` config file (fallback)

Edit claude_desktop_config.json:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

"mcpServers": { "extend-sdk": { "command": "npx", "args": ["-y", "mcp-remote", " "] } } }

Restart Claude Desktop after saving.

Using the Tools

Once connected, your assistant has access to these tools. In your assistant's chat, try the example prompts below — give permission to run the tools when requested.

`search-symbols`

Search Extend SDK symbols by name, tags, or description, with fuzzy matching. Returns a paginated list of summaries.

*"Search for symbols related to user"* · *"Find symbols for inventory"*

`describe-symbols`

Get full details for specific symbols by ID — fields, parameters, imports, example usage, return type, and required permissions.

*"Describe the AdminCreateUser@iam and User@iam symbols"*

`create-extend-app`

A prompt template that clones an Extend app template repository and opens it (in a Dev Container when available) so you can start from a working sample.

Invoke the create-extend-app prompt and follow the scenario / template / language completions.

[!TIP]

When coding with this MCP server, start from an Extend SDK getting-started sample or an Extend app template instead of a blank project, and add relevant source files as context for better results.

Running it yourself

Prefer to run the server locally (stdio) or host the HTTP server yourself? See [Running Locally & Self-Hosting](docs/LOCAL.md) for Docker usage, environment variables, HTTP endpoints, smoke tests, developing from source, and releasing the image.

Troubleshooting

Tool calls fail / the server returns `400`

Check the language in your URL path. It must be one of csharp, go, java, or python (e.g. /extend-mcp/go). An unknown language returns HTTP 400.

Client can't connect to the HTTP URL

Some clients only support stdio transport. Switch that client to the mcp-remote bridge config shown in Step 2. It needs Node.js 18+ with npx available (npx --version).

"Connection refused" or the host is unreachable

Confirm the and full URL are correct (ask your AccelByte administrator), and that your network can reach it.

Documentation

Installation Guide — followed by the Quick Install prompt; readable on its own
Running Locally & Self-Hosting — Docker, environment variables, HTTP endpoints, development, and releasing the image
Postman Collection — import and Newman smoke-test instructions for search-symbols and describe-symbols

Contributions

This repository is published as-is. For bug reports and questions, please open an issue.

Ags Extend Sdk MCP Server

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Rystic

README from the maker

AGS Extend SDK MCP Server

What It Does

Quick Install

Manual Install

Step 1: Choose your language and get your URL

Step 2: Configure your client

Visual Studio Code (Copilot)

Cursor

Claude Code

Antigravity

Gemini CLI

Claude Desktop

Using the Tools

search-symbols

describe-symbols

create-extend-app

Running it yourself

Troubleshooting

Tool calls fail / the server returns 400

Client can't connect to the HTTP URL

"Connection refused" or the host is unreachable

Documentation

Contributions

`search-symbols`

`describe-symbols`

`create-extend-app`

Tool calls fail / the server returns `400`