---
title: "Set Up the 6sense MCP in Claude"
slug: "set-up-the-6sense-mcp-in-claude"
description: "Learn how to connect Claude to the 6sense MCP server, authorize access, and troubleshoot common issues for seamless data integration."
updated: 2026-09-03T19:49:46Z
published: 2026-09-03T19:49:46Z
canonical: "support.6sense.com/set-up-the-6sense-mcp-in-claude"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.6sense.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Set Up the 6sense MCP in Claude

This article explains how to connect Claude to the 6sense MCP server and authorize access.

The 6sense MCP connector is available through the Claude connector catalog. For new connections, use the catalog listing whenever available. Existing custom connector installations continue to work and do not require migration.

## Before you begin

Before you set up MCP:

- You must have access to a 6sense account.
- Your organization must have access to the **Revenue Marketing** platform**.**
- Each user must authorize access individually.
- Admin rights in your AI agent platform, if your organization requires an administrator to register connectors.

## Authorization

Authorization is required when you connect to the 6sense MCP server.

### **How authorization works**

- If you are not signed in, you are prompted to log in to 6sense
- If you are already signed in, you are shown a permissions screen
- You must select Allow access to complete the connection

> [!WARNING]
> Important
> 
> - Authorization is required per user
> - Each user must authorize access individually
> - Authorization is required even if advanced settings are used

## Connect through the Claude connector catalog (Recommended)

1. Open **Claude**.
2. Go to **Settings** > **Connectors** > **Browse**.
3. Search for 6sense.
4. Select the **6sense** connector.
5. Review the connector information.
6. Select **Connect**.
7. Follow the authentication prompts to grant Claude access to your account.
8. Configure any permissions requested during setup.
9. When prompted by 6sense:
  1. Sign in to your 6sense account.
  2. Review the requested permissions.
  3. Select **Allow access**.

You can also access the 6sense connector directly from the Claude connector catalog using [https://claude.ai/directory/connectors/6sense.](https://claude.ai/directory/connectors/6sense.)

For more details, see [Claude documentation](https://support.claude.com/en/articles/11176164-use-connectors-to-extend-claude-s-capabilities).

## Alternative: Connect using a custom connector

For new connections, the catalog listing is the recommended setup method. The custom connector option remains available for customers who prefer that workflow or already use an existing custom connector.

In Claude:

1. Go to **Settings** or your organization’s settings
2. Select **Connectors**
3. Select **+ Add custom connector**
4. Provide the connector details:
  1. Connector name — for example, 6sense MCP
  2. MCP server URL — your 6sense MCP endpoint **https://api.6sense.com/mcp**
  3. Select **Connect** or **Authorize**.
5. If you are not signed in, you are prompted to log in to 6sense
6. If you are already signed in, you are shown a permissions screen
7. You must select **Allow access** to complete the connection

For more details, see [Claude documentation](https://support.claude.com/en/articles/11175166-get-started-with-custom-connectors-using-remote-mcp#h_3d1a65aded).

## **Verify the connection**

After connecting the 6sense MCP server, ask a question that requires 6sense data. For example, “Using 6sense, what is the current buying stage and top intent keywords for salesforce.com?”

If the connection works, your AI assistant:

- The AI assistant invokes a 6sense tool.
- The response includes 6sense account data.
- Information such as buying stage, intent topics, or account details is returned.

If the connection doesn’t work, your AI assistant:

- Provides only general knowledge responses
- Indicates that no tool is available
- Cannot retrieve 6sense data

To troubleshoot the issue, verify that:

- The connector has been added.
- The connection has been authorized.
- The connector is enabled for the conversation or agent.

## Troubleshooting

#### Unauthorized error (401) when opening the MCP URL in a browser

**Symptoms**

When you open the 6sense MCP server URL directly in a browser, you see an error similar to: `Your API token is invalid or auth token is invalid or missing authorization header`.

You may also see a 401 Unauthorized error.

**Cause**

This behavior is expected.

The 6sense MCP server is not intended to be accessed directly through a web browser. MCP connections are initiated and authenticated through a supported AI assistant, such as Claude, ChatGPT, or Microsoft Copilot Studio.

When you navigate to the MCP endpoint directly, the request does not contain the required authentication information, and the MCP server returns a 401 Unauthorized response.

**Resolution**

Do not open the MCP server URL directly in a browser.

Instead:

1. Add the 6sense MCP server in your AI assistant.
2. Complete the authentication and authorization process.
3. Use the AI assistant to access 6sense data through MCP.

## FAQ

#### Does the catalog listing replace the custom connector?

No. Both installation methods remain available. The catalog listing is the recommended option for new connections because it simplifies setup, but the custom connector remains supported.

#### Will existing users need to migrate?

No. Existing custom connector installations continue to work and do not require migration.

#### Does the catalog listing change data access?

No. The catalog listing changes how users discover and install the connector, not what data or capabilities they can access. Access continues to be governed by beta enrollment and organization-level settings.