# Abyssfall: Operation Sunken Crown

> Use this tool when you need to manage official game information, newsletter subscriptions, and merchandise reservations for Abyssfall: Operation Sunken Crown. It solves problems related to fan engagement, community building, and merchandising by providing a centralized platform for game updates, double opt-in newsletter sign-ups, and merch reservations. The tool accepts user inputs for newsletter subscriptions and merch reservations, and outputs official game information and reserved merchandise details.

Canonical page: https://skillsregistry.net/skills/com-abyssfallgame-mcp  
JSON: https://api.skillsregistry.net/v1/skills/com-abyssfallgame-mcp

## Description

Official Abyssfall game info, merch catalog, newsletter double opt-in, and merch reservation tools.

## Trust

- **Trust score (0–1):** 0.70
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-09

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/com.abyssfallgame%2Fmcp)

## Use it

MCP endpoint published by the skill: `https://www.abyssfallgame.com/mcp`

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "com-abyssfallgame-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/com-abyssfallgame-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/com-abyssfallgame-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt