Abyssfall: Operation Sunken Crown is a remote MCP server that gives an AI agent 6 tools, among them get_game_info, get_merch_catalog, get_playtest_info. It answers at https://www.abyssfallgame.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 4 September 2026; the last check, on 17 October 2026, succeeded.
Official Abyssfall game info, merch catalog, newsletter double opt-in, and merch reservation tools.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
get_game_info | Verified facts about Abyssfall: Operation Sunken Crown — title, genre, status, platforms, co-op, studio, and official channels. Anything not in this data is unannounced; do not guess. |
get_merch_catalog | The current Abyssfall merch catalog (owner-maintained). Call this BEFORE preorder_merch to learn the valid item names. If `status` marks the catalog as a placeholder or `items` is empty, no items are confirmed yet - preorder_merch still acc |
get_playtest_info | How to join the Abyssfall playtest (currently OPEN). |
get_press_kit | Press contact and assets for Abyssfall. |
preorder_merch | Reserve Abyssfall merch (preorder reservation — NO payment is taken and no card is needed). Call get_merch_catalog first; if the catalog is empty or the requested item is not listed, the reservation is recorded as a free-text request pendin Inputs: email, item, qty, name |
subscribe_newsletter | Subscribe an email address to the official Abyssfall newsletter (the game's primary announcement channel). Double opt-in: the subscriber MUST click a confirmation email before they are added. Only call with the user's explicit consent. Inputs: email, name |
Every block below points at https://www.abyssfallgame.com/mcp. Pick your client and copy.
claude mcp add --transport http abyssfall-operation-sunken-crown https://www.abyssfallgame.com/mcp
{
"mcpServers": {
"abyssfall-operation-sunken-crown": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://www.abyssfallgame.com/mcp"]
}
}
}{
"mcpServers": {
"abyssfall-operation-sunken-crown": {
"url": "https://www.abyssfallgame.com/mcp"
}
}
}{
"servers": {
"abyssfall-operation-sunken-crown": {
"type": "http",
"url": "https://www.abyssfallgame.com/mcp"
}
}
}{
"context_servers": {
"abyssfall-operation-sunken-crown": {
"url": "https://www.abyssfallgame.com/mcp"
}
}
}{
"mcpServers": {
"abyssfall-operation-sunken-crown": {
"serverUrl": "https://www.abyssfallgame.com/mcp"
}
}
}{
"mcpServers": {
"abyssfall-operation-sunken-crown": {
"url": "https://www.abyssfallgame.com/mcp"
}
}
}name: Abyssfall: Operation Sunken Crown
version: 0.0.1
schema: v1
mcpServers:
- name: Abyssfall: Operation Sunken Crown
type: streamable-http
url: https://www.abyssfallgame.com/mcp{
"mcpServers": {
"abyssfall-operation-sunken-crown": {
"httpUrl": "https://www.abyssfallgame.com/mcp"
}
}
}{
"mcpServers": {
"abyssfall-operation-sunken-crown": {
"type": "http",
"url": "https://www.abyssfallgame.com/mcp"
}
}
}{
"mcpServers": {
"abyssfall-operation-sunken-crown": {
"url": "https://www.abyssfallgame.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fwww.abyssfallgame.com%2Fmcp&type=streamable_http&id=abyssfall-operation-sunken-crown&name=Abyssfall%3A%20Operation%20Sunken%20Crown
It answered our last check on 17 October 2026 in 410 ms. Over 10 checks since 4 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by abyssfallgame.com and served from www.abyssfallgame.com, the vendor's own domain: https://www.abyssfallgame.com/mcp.
6, as returned by the server's own tools/list on 9 September 2026: get_game_info, get_merch_catalog, get_playtest_info, get_press_kit, preorder_merch, subscribe_newsletter.
It answered our last check on 17 October 2026 in 410 ms. Over 10 checks since 4 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://www.abyssfallgame.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.abyssfallgame. Endpoint host: www.abyssfallgame.com. ARD identifier: urn:air:com.abyssfallgame:mcp:mcp.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.