Opine vs circleback
Opine is an MCP server published by cody-docker. Marketplaces we read that list it: 1 (Docker MCP Catalog). circleback is a plugin bundle for AI coding tools published by circlebackai. Marketplaces we read that list it: 2 (Claude Code: claude-plugins-official, Claude Code: claude-plugins-community). As of our marketplace pass on 2026-10-12. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  circleback | |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:e6e704c00f78 Forks (GitHub): 4 Stars (GitHub): 2 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-official | Not listed | Listed Version: 1.0.0 Forks (GitHub): 5 Stars (GitHub): 3 Not marked · First seen |
| Claude Code: claude-plugins-community | Not listed | Listed Version: 1.0.0 Forks (GitHub): 5 Stars (GitHub): 3 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | Opine | circleback |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 2 (worse) | 3 (better) |
| Forks (GitHub) (differs) | 4 (worse) | 5 (better) |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (codygreen719/opine-mcp-server) | Remote server (circleback.ai/api/mcp) |
| Transport (differs) | stdio | Streamable HTTP |
| Tools it declares (differs) | 11 | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 1 | Not published |
| Parts of the bundle (differs) | Not a bundle | 1 |
| Licence (differs) | NOASSERTION | Not stated |
| Repository (differs) | github.com/cody-docker/opine-mcp-server | github.com/circlebackai/claude-code-plugin |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | not checked yet |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
Opine
A Model Context Protocol (MCP) server for querying deals and evaluations from the Opine CRM API.
circleback
Circleback conversational context integration. Search and access meetings, emails, calendar events, and more.
How to run each
Opine As a local MCP server: Docker image
claude mcp add --env "OPINE_API_KEY=<YOUR_OPINE_API_KEY>" --transport stdio opine-mcp-server -- docker run -i --rm -e OPINE_API_KEY codygreen719/opine-mcp-serverRequires: OPINE_API_KEY (secret)
circleback As a Claude Code plugin
/plugin install circleback@claude-plugins-officialCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of circleback publish no list of tools, so we do not compare tools.
Settings each asks for
The marketplaces of circleback publish no settings it asks for, so we do not compare settings.
What it can do: Opine · What it can do: circleback · Compare two other plugins
Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.