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MCP overview / Claude (Web/Desktop)
MCP · Setup

Claude (Web/Desktop)

Add Firmable as a custom connector in Claude (Web) and Claude (Desktop).

Add the Firmable MCP server as a custom connector in Claude so it can query Firmable data inside your conversations.

Team and Enterprise plans: an owner adds the connector under Organization settings → Connectors → Add, then hovers Custom and selects Web. Team members then connect from Customize → Connectors by clicking Connect on the connector labelled Custom.
You’ll need the MCP URL and Client ID — see URL & Client ID.

Claude (Web)

1

Open Customize

In Claude, open the sidebar and click Customize.

Claude (Web) sidebar with the Customize item highlighted
2

Add a custom connector

Go to the Connectors tab, click the +, and choose Add custom connector.

Connectors tab with the plus menu open showing Add custom connector
3

Enter the Firmable MCP details

  • Name: anything you like — this guide uses Firmable
  • Remote MCP server URL: the MCP URL
  • Expand Advanced settings and enter your OAuth Client ID (your Firmable Client ID).

Find the MCP URL and Client ID on URL & Client ID. Then click Add.

Add custom connector dialog with the Firmable name, MCP server URL, and OAuth Client ID filled in
4

Connect

Firmable now appears under Not connected. Select it and click Connect.

Firmable custom connector listed under Not connected with a Connect button
5

Authorize

Sign in to Firmable and click Allow to authorize the connection.

Firmable OAuth screen requesting access, with an Allow button
6

Review tool permissions

Once connected, choose when Claude is allowed to use each Firmable tool, then start using it in a chat.

Connected Firmable connector showing the list of tools and their permission settings

Claude (Desktop)

Custom connectors are brokered through your Claude account. If you already added Firmable on the web, it appears in Claude (Desktop) automatically — just open Customize → Connectors and click Connect (jump to step 4). If you haven’t, add it from scratch below.
1

Open Customize

In Claude (Desktop), open the sidebar and click Customize.

Claude (Desktop) sidebar with the Customize item highlighted
2

Add a custom connector

Go to the Connectors tab, click the +, and choose Add custom connector.

Claude (Desktop) Connectors tab with the plus menu open showing Add custom connector
3

Enter the Firmable MCP details

  • Name: anything you like — this guide uses Firmable
  • Remote MCP server URL: the MCP URL
  • Expand Advanced settings and enter your OAuth Client ID.

Find the MCP URL and Client ID on URL & Client ID. Then click Add.

Add custom connector dialog in Claude (Desktop) with the Firmable details filled in
4

Connect

Firmable appears under Not connected. Select it and click Connect.

Firmable custom connector listed under Not connected in Claude (Desktop) with a Connect button
5

Authorize

Claude opens your browser to authorize. Sign in to Firmable and click Allow.

Firmable OAuth screen requesting access, with an Allow button
6

Review tool permissions

Back in Claude (Desktop), Firmable shows as Connected. Choose when Claude is allowed to use each tool, then start using it in a chat.

Connected Firmable connector in Claude (Desktop) showing the list of tools and their permission settings

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