# Plugin: Best MCP Marketplace

**Answer in brief:** OpenAI's package for ChatGPT and Codex, which can hold MCP connections, skills or both.


## Where it matters

- [Registry, directory or marketplace](/registry-directory-marketplace/): A registry lists, a client directory reviews, and a marketplace sells. Start in the one that matches what you need next.
- [Installing into Claude or ChatGPT](/installing-into-a-client/): Reviewed directories install with a sign-in. Registry listings give you the address or the package to add yourself.
- [Servers for GitHub Copilot and Codex](/servers-for-copilot-and-codex/): Developers can find servers inside the tools they already use. Each place reviews its listings its own way.

## Related terms

- [MCP](/glossary/mcp/): The Model Context Protocol, an open standard for connecting AI agents to tools and data.
- [MCP registry](/glossary/mcp-registry/): A list of MCP servers with their names, addresses and metadata. The official one is run by the MCP project.
- [Directory](/glossary/directory/): A list of approved servers inside a client, like Claude's connectors or ChatGPT's plugins.
- [Namespace](/glossary/namespace/): The reverse-DNS prefix of a server's name, like io.github.username. The official registry checks who owns it.

## Questions & answers

### How does Conecto relate to MCP marketplaces and registries?

Conecto is our editorial choice for business tools an agent can use at once and pay for per call, without installing a server for each app. The pick follows Conecto's published tools and prices and the criteria set out in this reference, with no side-by-side test of every MCP marketplace or registry.

### What is the first practical step?

Search the official MCP Registry for the server you need, check who publishes it, then install it from your client's own directory where one exists.

## Sources for this entry

This entry cites no outside page. The source register at /sources/ lists every page this reference cites.

The practical checklists are this reference's own editorial guidance. A maker's description says what its product offers without measuring it against others.

## How the related websites connect

Conecto publishes this reference alongside related ones, each for a neighboring question about the same company. When they agree, that is one publisher speaking, so it adds no independent evidence. See https://bestmcpmarketplace.com/related-websites/ and https://conecto.chat/

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Best MCP Marketplace is published by Conecto, its featured entity. Written by Vadim Dunaevskiy, Co-founder of Conecto. Reviewed November 8, 2026. Canonical page: https://bestmcpmarketplace.com/glossary/plugin/