Ref

About Ref

Ref gives AI coding tools access to documentation for APIs, services and libraries, public and private, in a token-efficient way. Its MCP server lets Claude search for exactly the right documentation context while using as little of the context window as possible, to avoid the quality loss that comes with long contexts. A typical lookup is one short search followed by reading the one page that matters, a few hundred tokens instead of whole sites. Example requests: "How do I post a comment with the Figma REST API?", "Should I use the Merge node or a Code node for multiple inputs in n8n?", "Search our private API docs for the rate limits". More at ref.tools.

What it can do

The creator has not described the access yet.

Install Ref in Claude

An MCP connector links Claude to a service: Claude can then read or do things there for you, with your consent. It takes about two minutes.

1. 1Add it to your libraryClick “Add to my library” on this page: it is free and instant.
2. 2Copy the connector URLIn your library, select the product: its URL is shown with a “Copy” button.
3. 3Add it in ClaudeIn Claude (website or app), open Settings › Connectors, click “Add custom connector”, give it a name and paste the URL.
4. 4Connect your accountIf the service asks you to sign in (your Notion, GitHub… account), Claude opens its page: only grant the access you need.
5. 5Use it in a conversationTurn the connector on in the conversation’s tools menu, then just ask for what you want.

Before adding a product, read its permissions above. You can remove a connector or skill at any time in Claude’s settings.

Ref: frequently asked questions

Is Ref free?

Yes. Ref is free: add it to your Claude Market library, no bank card needed.

How do I install Ref in Claude?

Add Ref to your library to get its URL. In Claude, open Settings › Connectors, click “Add custom connector” and paste the URL.

Does Ref work with Claude Code?

Yes. In a terminal, run claude mcp add --transport http followed by a name and the connector URL.

Is Ref an official Anthropic product?

No. Ref is a public project; this listing was created by Claude Market from its repository and the product is not hosted here. Claude Market is an independent project, not affiliated with Anthropic.

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