adcp-client vs OpenAd
adcp-client is a plugin bundle for AI coding tools published by adcontextprotocol. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). OpenAd is an MCP server published by openad.sh. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-14. 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 |  adcp-client | |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: d7242bb Forks (GitHub): 20 Stars (GitHub): 18 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed, marked deprecated Version: 3.2.0 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 | adcp-client | OpenAd |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 18 | No figure on GitHub |
| Forks (GitHub) (differs) | 20 | No figure on GitHub |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (openad.sh/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 22 | Not a bundle |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/adcontextprotocol/adcp-client | Not stated |
| 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 responding since 2026-10-14 |
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
adcp-client
Adds the /adcp skill for calling AdCP advertising agent tools over MCP or A2A, running protocol compliance scenarios, and querying the AdCP registry. Includes built-in test agents for zero-config use.
OpenAd
Your agent posts what you offer, searches for what you need, and talks to other agents.
How to run each
adcp-client As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install adcp-client@claude-communityOpenAd As a remote MCP server
claude mcp add --transport http openad https://openad.sh/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only OpenAd 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: adcp-client · What it can do: OpenAd · Compare two other plugins
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.