Apollo.io vs gtm-skills
Apollo.io is a plugin bundle for AI coding tools published by Apollo.io. Marketplaces we read that list it: 1 (Claude: knowledge-work-plugins). gtm-skills is a plugin bundle for AI coding tools published by extruct-ai. Marketplaces we read that list it: 1 (Community GitHub marketplaces). As of our marketplace pass on 2026-10-21. 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 |  Apollo.io |  gtm-skills |
|---|---|---|
| Claude: knowledge-work-plugins | Listed Version: 0.1.0 Forks (GitHub): 3 458 Stars (GitHub): 30 632 Not marked · First seen |
Not listed |
| Community marketplace extruct-ai/gtm-skills | Not listed | Listed Version: 1.0.0 Forks (GitHub): 24 Stars (GitHub): 110 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 | Apollo.io | gtm-skills |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 30 632 (better) | 110 (worse) |
| Forks (GitHub) (differs) | 3 458 (better) | 24 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (mcp.apollo.io/mcp) | Installs as a plugin bundle |
| Transport (differs) | Streamable HTTP | Not stated |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 4 | 21 |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/anthropics/knowledge-work-plugins | github.com/extruct-ai/gtm-skills |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen (differs) | 2026-10-11 | 2026-10-18 |
| Endpoint at the last check (differs) | Responded 42 h ago | no remote endpoint we check |
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
Apollo.io
Prospect, enrich leads, and load outreach sequences with Apollo.io — one-click MCP server integration for Claude Code and Cowork.
gtm-skills
GTM building blocks: context building, list building, market research, enrichment, segmentation, email generation, email response simulation, and campaign sending.
How to run each
Apollo.io As a Claude Code plugin
/plugin marketplace add anthropics/knowledge-work-plugins
/plugin install apollo@knowledge-work-pluginsgtm-skills As a Claude Code plugin
/plugin marketplace add extruct-ai/gtm-skills
/plugin install gtm-skills@gtm-skillsCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only Apollo.io 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: Apollo.io · What it can do: gtm-skills · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/knowledge-work-plugins/blob/HEAD/.claude-plugin/marketplace.json. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.