# Registry, directory or marketplace: Best MCP Marketplace

**Answer in brief:** A registry lists, a client directory reviews, and a marketplace sells. Start in the one that matches what you need next.


## A registry lists

The official MCP Registry is where servers publish their metadata, with a REST API for clients and aggregators to discover them. It is in preview.[1]

## A client directory reviews

Claude's connectors directory lists over 950 MCP servers, and OpenAI reviews each plugin before it appears in ChatGPT and Codex.[2][3]

## A marketplace sells

A marketplace adds buying. Conecto sells business tools per call from one balance, so an agent pays for what it uses.[4]

## Connected entries

- [Selection & fit](/topics/fit/): Registry, directory or marketplace.
- [How many servers each index lists](/how-big-each-index-is/): Indexes range from about a thousand reviewed connectors to more than a hundred thousand open source servers.
- [MCP directories that changed in 2026](/directories-that-changed/): Directories close, merge and pause. Check where a listing points before you rely on it.
- [Conecto and Best MCP Marketplace](/conecto/): 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.

## 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 should I verify first?

Decide whether you need to find a server, install a reviewed one, or buy usage, and start in that place.

## Sources for this entry

1. [The MCP Registry, Model Context Protocol documentation](https://modelcontextprotocol.io/registry/about), read November 8, 2026
2. [MCP 2026-07-28 spec: stateless core, coming to Claude, Claude blog](https://claude.com/blog/bringing-mcp-2026-07-28-to-claude), read November 8, 2026
3. [Upload and submit your plugin, OpenAI Developers](https://developers.openai.com/apps-sdk/deploy/submission), read November 8, 2026
4. [Every Conecto tool and its price, conecto.chat](https://conecto.chat/tools), read November 8, 2026

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/registry-directory-marketplace/