Perplexity API Platform vs MemoCat — Shared AI Memory
Perplexity API Platform is an MCP server published by perplexity.ai. Marketplaces we read that list it: 3 (Official MCP Registry, Docker MCP Catalog, Community GitHub marketplaces). MemoCat — Shared AI Memory is an MCP server published by MontyGovernance. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-19. 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 API Platform |  MemoCat — Shared AI Memory |
|---|---|---|
| Official MCP Registry | Listed Version: 1.2.1 Downloads/month (npm): 102 467 Downloads/week (npm): 16 084 Not marked · First seen |
Listed Version: 0.4.3 Downloads/month (PyPI): 1 030 Downloads/week (PyPI): 54 Forks (GitHub): 4 Stars (GitHub): 28 Not marked · First seen |
| Docker MCP Catalog | Listed Version: sha256:7816f45a6f26 Forks (GitHub): 384 Pulls (Docker Hub): 80 391 Stars (Docker Hub): 17 Stars (GitHub): 2 578 Not marked · First seen |
Not listed |
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 API Platform | MemoCat — Shared AI Memory |
|---|---|---|
| Marketplaces that list it (differs) | 3 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 2 578 (better) | 28 (worse) |
| Pulls (Docker Hub) (differs) | 80 391 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 384 (better) | 4 (worse) |
| Last release (differs) | 2026-10-17 | Not published |
| Where it runs (differs) | On your machine (@perplexity-ai/mcp-server) | On your machine (memocat-mcp) |
| Transport | stdio | stdio |
| Tools it declares (differs) | 3 | Not published |
| Environment variables it asks for | 2, secrets among them: 1 | 2, secrets among them: 1 |
| Parts of the bundle (differs) | 1 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/ppl-ai/modelcontextprotocol | github.com/montygovernance/memocat-mcp |
| Changes in the last 7 days (differs) | 4 | 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 API Platform
Real-time web search, reasoning, and research through Perplexity's API
MemoCat — Shared AI Memory
One shared, persistent memory across AI agents and systems, with semantic recall and live updates.
How to run each
Perplexity API Platform As a local MCP server: npm package
claude mcp add --transport stdio perplexity-api-platform -- npx -y @perplexity-ai/mcp-serverMemoCat — Shared AI Memory As a local MCP server: PyPI package
claude mcp add --env "MONTYCAT_URI=<YOUR_MONTYCAT_URI>" --transport stdio memocat-mcp -- uvx memocat-mcpRequires: MONTYCAT_URI (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of MemoCat — Shared AI Memory publish no list of tools, so we do not compare tools.
Settings each asks for
Only Perplexity API Platform asks for
PERPLEXITY_API_KEY (secret)PERPLEXITY_TIMEOUT_MS
Only MemoCat — Shared AI Memory asks for
MONTYCAT_TLSMONTYCAT_URI (secret)
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: Perplexity API Platform · What it can do: MemoCat — Shared AI Memory · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. 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.