eCFR

About eCFR

This free MCP server gives Claude the Electronic Code of Federal Regulations, including the FAR, DFARS and agency supplements, with 13 tools. Useful for federal contracting questions answered from the government's own text.

What it can do

The creator has not described the access yet.

Install eCFR 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.

eCFR: frequently asked questions

Is eCFR free?

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

How do I install eCFR in Claude?

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

Does eCFR work with Claude Code?

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

Is eCFR an official Anthropic product?

No. eCFR 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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