Argo MCP Server

MCP server for Argo RPG Platform — connects AI assistants to campaign data via OAuth2

Remote serverstreamable-http

What is the Argo MCP server?

Argo MCP server exists for a simple reason — assistants are far more useful when they can act on Argo directly instead of describing what you should do. MCP server for Argo RPG Platform — connects AI assistants to campaign data via OAuth2.

What you get

Connects AI assistants to your Argo campaigns via the Model Context Protocol. Once configured, your AI assistant can read and write campaign lore, look up character details, and interact with Argo data directly from the chat interface.

Setting it up

Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.

What the assistant can call

Once Argo is connected, these are the calls the assistant has available:

  • Campaigns — The Campaigns tool exposed by this server
  • Mnemons — The Mnemons tool exposed by this server
  • Sessions — The Sessions tool exposed by this server
  • Guilds — The Guilds tool exposed by this server
  • Friends — To bring someone into a campaign or guild, use invite_guild_member or send_friend_request — the MCP surface does not send email to addresses outside
  • Forum — Many campaign-scoped tools accept campaignId. You can find a campaign's ID from the Argo campaign URL or by asking the GM

Configuration and credentials

You will need 3 environment variables: OAUTH_TOKEN, REFRESH_TOKEN, ARGO_MCP_TOKEN_PATH. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

  • Node.js 20 or later - An Argo account with at least one campaign - A Game Master must authorize the AI assistant via the OAuth2 consent flow (see Getting a token) ---

Before you rely on it

  • Your data travels to the provider's service, so the usual questions apply about what you send and what they retain.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the argo mcp server does with a few real requests.

Choosing this one

This sits in the team communication group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Argo's toolset — Campaigns, Mnemons, Sessions and 3 more — is a fair guide to whether it matches your workflow. It is maintained by Argo-RPG-Platform; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Argo's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Available tools

ToolWhat it does
CampaignsThe Campaigns tool exposed by this server.
MnemonsThe Mnemons tool exposed by this server.
SessionsThe Sessions tool exposed by this server.
GuildsThe Guilds tool exposed by this server.
FriendsTo bring someone into a campaign or guild, use invite_guild_member or send_friend_request — the MCP surface does not send email to addresses outside your existing Argo context.
ForumMany campaign-scoped tools accept campaignId. You can find a campaign's ID from the Argo campaign URL or by asking the GM.

How to install the Argo MCP server

{
  "mcpServers": {
    "argo": {
      "command": "npx",
      "args": ["-y", "argo-mcp"],
      "env": {
        "OAUTH_TOKEN": "<your-access-token>",
        "REFRESH_TOKEN": "<your-refresh-token>"
      }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

  • Node.js 20 or later - An Argo account with at least one campaign - A Game Master must authorize the AI assistant via the OAuth2 consent flow (see Getting a token) ---
VariableDescriptionRequired
OAUTH_TOKENCredential the server authenticates with.Yes
REFRESH_TOKENCredential the server authenticates with.Yes
ARGO_MCP_TOKEN_PATHCredential the server authenticates with.Yes

Example prompts to try

  • Use Argo to Campaigns.
  • Use Argo to Mnemons.
  • Use Argo to Sessions.

Frequently asked questions

It connects Argo to MCP-compatible AI assistants such as Claude and Cursor, exposing 6 tools (Campaigns, Mnemons, Sessions, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Argo directly.