circleback vs Public Holidays & Business Days (200+ countries)
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). Public Holidays & Business Days (200+ countries) is an MCP server published by pcp183. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-20. 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 | |
|---|---|---|
| Claude Code: claude-plugins-official | Listed Version: 1.0.0 Forks (GitHub): 5 Stars (GitHub): 3 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-community | Listed Version: 1.0.0 Forks (GitHub): 5 Stars (GitHub): 3 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.2.0 No figure published 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 | circleback | Public Holidays & Business Days (200+ countries) |
|---|---|---|
| Marketplaces that list it (differs) | 2 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 3 | No figure on GitHub |
| Forks (GitHub) (differs) | 5 | No figure on GitHub |
| Last release (differs) | Not published | 2026-10-17 |
| Where it runs (differs) | Remote server (circleback.ai/api/mcp) | Remote server (business-days-production.up.railway.app/mcp) |
| Transport | Streamable HTTP | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 1 | Not a bundle |
| Licence | Not stated | Not stated |
| Repository (differs) | github.com/circlebackai/claude-code-plugin | github.com/pcp183/business-days |
| Changes in the last 7 days (differs) | 0 | 4 |
| First seen (differs) | 2026-10-11 | 2026-10-16 |
| Endpoint at the last check (differs) | Responded 4 days ago, requires a key | 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
circleback
Circleback conversational context integration. Search and access meetings, emails, calendar events, and more.
Public Holidays & Business Days (200+ countries)
Compute deadlines in business days with public holidays (200+ countries). $0.002/call.
How to run each
circleback As a Claude Code plugin
/plugin install circleback@claude-plugins-officialPublic Holidays & Business Days (200+ countries) As a remote MCP server
claude mcp add --transport http business-days https://business-days-production.up.railway.app/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only circleback has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: circleback · What it can do: Public Holidays & Business Days (200+ countries) · Compare two other plugins
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. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.