Is Terrarium Plugin free?

Yes, Terrarium Plugin is free to use.

How do I install Terrarium Plugin?

Terrarium Plugin is a remote plugin. You do not need to install anything locally. Add the server URL to your AI app's MCP configuration and you are ready to go.

Is Terrarium Plugin safe to use?

Yes. Terrarium Plugin passed MCP Marketplace's automated security scan with a score of 10/10 (low risk). Every server on MCP Marketplace is security-scanned before it's listed; see the full security report on this page for the findings and permissions.

What credentials does Terrarium Plugin need?

Terrarium Plugin requires the following credentials or environment variables: TERRARIUM_PAT. You can find setup instructions on the server detail page.

What AI apps work with Terrarium Plugin?

Terrarium Plugin uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

Back to Browse

Terrarium Plugin MCP Server

by Nelsonsantryhkd

Developer ToolsLow Risk10.0MCP RegistryRemote

Free

Server data from the Official MCP Registry

Human visual review for agent-built HTML: publish artifacts, pull anchored comments, push fixes.

About

Human visual review for agent-built HTML: publish artifacts, pull anchored comments, push fixes.

Remote endpoints: streamable-http: https://www.tryterrarium.com/api/mcp

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.

Endpoint verified · Requires authentication · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

What You'll Need

Set these up before or after installing:

TERRARIUM_PATRequired

How to Connect

Remote Plugin

No local installation needed. Your AI client connects to the remote endpoint directly.

Add this to your MCP configuration to connect:

{
  "mcpServers": {
    "io-github-nelsonsantryhkd-terrarium": {
      "url": "https://www.tryterrarium.com/api/mcp"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

Terrarium plugin for Claude Code

Give your agent a place to show its work to humans. Terrarium hosts the HTML your agent builds; humans review it in the browser with comments anchored to exact passages; the agent pulls that feedback over MCP, pushes fixes, and repeats until approved.

Install

/plugin marketplace add nelsonsantryhkd/terrarium-plugin
/plugin install terrarium@terrarium

Then mint a token at tryterrarium.com/connect and make it available as TERRARIUM_PAT:

export TERRARIUM_PAT="samus_pat_…"

(Or just ask your agent to set Terrarium up — the bundled skill walks it through the whole flow, including sending you to /connect for the token.)

What it ships

MCP server (.mcp.json) — Terrarium's remote server over Streamable HTTP with 7 tools: list_artifacts, publish_artifact, get_artifact, pull_comments, push_version, reply_to_comment, resolve_comment.
Skill (skills/terrarium/) — teaches the publish → review → fix loop, including the terrarium-feedback/1 payload, expectedVersion freshness, and comment-thread etiquette.

The protocol

pull_comments returns a versioned, structured payload (terrarium-feedback/1) designed to be stable enough to build agents against: review state, typed comment threads (change_request / question / bug), text anchors with live resolution status, and reply chains. Evolution within /1 is additive-only.

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Terrarium Plugin MCP Server

About

Security Report

Findings (1)

Permissions Required

What You'll Need

How to Connect

Documentation

Terrarium plugin for Claude Code

Install

What it ships

The protocol

Reviews

No reviews yet

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