Comparison

qector vs Perplexity API Platform

qector is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑15.

qector is a plugin bundle for AI coding tools published by Guillaume Lessard. No marketplace we read lists it any more. 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). As of our marketplace pass on 2026-10-25. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.

Where each is published

Where each is published
Marketplace	qector	Perplexity API Platform
Community marketplace guillaumelessard/qector-claude-plugin	Removed on 2026-10-15 Version: 1.0.6 Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen 2026-10-13	Not listed
Official MCP Registry	Not listed	Listed Version: 1.2.1 Downloads/month (npm): 102 467 Downloads/week (npm): 16 084 Not marked · First seen 2026-10-11
Docker MCP Catalog	Not listed	Listed Version: sha256:7816f45a6f26 Forks (GitHub): 387 Pulls (Docker Hub): 80 825 Stars (Docker Hub): 17 Stars (GitHub): 2 588 Not marked · First seen 2026-10-11

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

qector vs Perplexity API Platform
Fact	qectorno longer listed · 2026-10-15	Perplexity API Platform
Marketplaces that list it (differs)	0	3
Stars (GitHub) (differs)	1	2 588
Pulls (Docker Hub) (differs)	No figure on Docker Hub	80 825
Forks (GitHub) (differs)	0	387
Last release (differs)	Not published	2026-10-17
Where it runs (differs)	Installs as a plugin bundle	On your machine (@perplexity-ai/mcp-server)
Transport (differs)	Not stated	stdio
Tools it declares (differs)	Not published	3
Environment variables it asks for (differs)	2, secrets among them: 0	2, secrets among them: 1
Hooks it runs (differs)	2	1
Parts of the bundle (differs)	47	2
Licence (differs)	Proprietary	MIT
Repository (differs)	github.com/guillaumelessard/qector-claude-plugin	github.com/ppl-ai/modelcontextprotocol
Changes in the last 7 days (differs)	0	2
First seen (differs)	2026-10-13	2026-10-11

Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.

What to use instead of qector

Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.

quantum-computing-researcher

Quantum computing algorithms and quantum programming expert

by DevsForge Community · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job
Qiskit Documentation MCP Server

MCP server for querying and retrieving Qiskit documentation, guides, and API references

by Qiskit · MCP server

Listed on: Official MCP Registry, PyPI (MCP servers) · Describes nearly the same job
Quantum OpenQASM MCP

IBM Quantum OpenQASM 2.0 MCP — list backends, submit QASM, poll jobs, get histograms.

by markusvankempen · MCP server

Listed on: Official MCP Registry · Describes nearly the same job
Quantum Suitability Validator

AI triage for quantum computing POC proposals. Screens before budget is allocated.

by OjasKord · MCP server

Listed on: Official MCP Registry · Describes nearly the same job
Qiskit IBM Transpiler MCP Server

MCP server for AI Transpiler IBM Quantum services

by Qiskit · MCP server

Listed on: Official MCP Registry, PyPI (MCP servers) · Describes nearly the same job
Turbo Quant Memory

Local-first memory and knowledge graph for coding agents. Compact retrieval, no network.

by Lexus2016 · MCP server

Listed on: Official MCP Registry · Describes a similar job

Its card, with similar plugins by marketplace

What each says it does

qector

In its own words, on Community GitHub marketplaces:

Local QECTOR quantum error correction plugin for Claude Code and Claude Desktop with strict math skills, focused agents, and qector-decoder-v3 MCP servers.

Perplexity API Platform

In its own words, on Official MCP Registry:

Real-time web search, reasoning, and research through Perplexity's API

How to run each

qector

No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.

Perplexity API Platform As a local MCP server: npm package

Claude Code

claude mcp add --transport stdio perplexity-api-platform -- npx -y @perplexity-ai/mcp-server

Commands built only from what the marketplaces declare; the full set for every client is on each card.

Tools each declares

The marketplaces of qector publish no list of tools, so we do not compare tools.

Settings each asks for

Only qector asks for

PYTHONUNBUFFERED
QECTOR_SILENT

Only Perplexity API Platform asks for

PERPLEXITY_API_KEY (secret)
PERPLEXITY_TIMEOUT_MS

Settings as each marketplace publishes them. Asking for fewer is not better in itself.

What it can do: qector · What it can do: Perplexity API Platform · Compare two other plugins

Data comes from public marketplace files in GitHub repositories of their authors. 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. Figures come from our own regular passes over the marketplaces, last read on 2026-10-25. We publish no contact details for plugin publishers.