Perplexity vs chess-coach-ai
Perplexity is an MCP server published by perplexityai. Marketplaces we read that list it: 1 (Docker MCP Catalog). chess-coach-ai is a plugin bundle for AI coding tools published by datoga. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). As of our marketplace pass on 2026-10-13. 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 |   Perplexity |  chess-coach-ai |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:7816f45a6f26 Forks (GitHub): 380 Pulls (Docker Hub): 79 864 Stars (Docker Hub): 17 Stars (GitHub): 2 562 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-community | Not listed | Listed Version: 0.1.0 Forks (GitHub): 0 Stars (GitHub): 1 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 | Perplexity | chess-coach-ai |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 2 562 (better) | 1 (worse) |
| Pulls (Docker Hub) (differs) | 79 864 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 380 (better) | 0 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (mcp/perplexity-ask) | Installs as a plugin bundle |
| Transport (differs) | stdio | Not stated |
| Tools it declares (differs) | 3 | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 1 | Not published |
| Hooks it runs (differs) | Not published | 2 |
| Parts of the bundle (differs) | Not a bundle | 10 |
| Licence | MIT | MIT |
| Repository (differs) | github.com/ppl-ai/modelcontextprotocol | github.com/datoga/chess-coach-ai |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
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
Perplexity
Connector for Perplexity API, to enable real-time, web-wide research.
chess-coach-ai
AI-powered chess coaching system with multi-agent cowork architecture. 4 specialized agents work together to provide comprehensive coaching: • Intel — Opponent scouting via Lichess API, Opening Explorer analysis, player profiling with style classification • GM — Stockfish analysis with time-controlled profiles (quick/normal/deep), error classification by cognitive origin (tactical miss, conceptual weakness, pattern recognition failure, time pressure), DQM scoring, endgame tablebases, personalized training roadmaps • Mind — Complete 3-phase mental performance framework (based on Jared Tendler's methodology): self-awareness (7 tilt types), self-regulation (pre/during/post-game protocols), and opponent psychological conditioning • Biohack — Evidence-based nutrition, supplementation, sleep optimization, and full weekly preparation protocols timed to your game schedule Agents communicate via agent_notes system and the coordinator synthesizes their outputs. Includes scoresheet/board photo scanning, local game vault
How to run each
Perplexity As a local MCP server: Docker image
claude mcp add --env "PERPLEXITY_API_KEY=<YOUR_PERPLEXITY_API_KEY>" --transport stdio perplexity-ask -- docker run -i --rm -e PERPLEXITY_API_KEY mcp/perplexity-askRequires: PERPLEXITY_API_KEY (secret)
chess-coach-ai As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install chess-coach-ai@claude-communityCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of chess-coach-ai publish no list of tools, so we do not compare tools.
Settings each asks for
The marketplaces of chess-coach-ai publish no settings it asks for, so we do not compare settings.
What it can do: Perplexity · What it can do: chess-coach-ai · 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-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.