---
title: "Crystal MCP server"
url: "https://martechdb.com/vendors/crystal"
markdown_url: "https://martechdb.com/vendors/crystal.md"
api_url: "https://martechdb.com/api/v1/vendors/crystalknows.com"
updated: "2026-10-01"
---

# Crystal MCP server

The official MCP server published by Crystal. MartechDB lists only servers the vendor publishes itself, never community servers.

- Website: [crystalknows.com](https://crystalknows.com)
- Categories: [Social, PR & influencers](https://martechdb.com/categories/social-pr-influencers.md)

## Crystal MCP server

- Address: https://mcp.crystalknows.com/
- Runs: Hosted
- Sign-in: Sign-in needs vendor setup (`oauth`)
- Official MCP Registry: not listed
- How we found it: Live check of the vendor's own web address
- Last checked: 2026-10-01

### Connect it

Claude Code:

```sh
claude mcp add --transport http crystal https://mcp.crystalknows.com/
```

- Add to Cursor: <cursor://anysphere.cursor-deeplink/mcp/install?name=crystal&config=eyJ1cmwiOiJodHRwczovL21jcC5jcnlzdGFsa25vd3MuY29tLyJ9>
- Add to VS Code: <vscode:mcp/install?%7B%22name%22%3A%22crystal%22%2C%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fmcp.crystalknows.com%2F%22%7D>
- Claude.ai and Claude Desktop: Customize, Connectors, "+", Add custom connector, then paste https://mcp.crystalknows.com/
- ChatGPT: Settings, Apps, Advanced settings, turn on Developer mode, Create, then paste https://mcp.crystalknows.com/ (this usually works only with servers that use self-serve sign-in or none)

JSON for Cursor, Windsurf and other clients that connect to hosted servers:

```json
{
    "mcpServers": {
        "crystal": {
            "type": "http",
            "url": "https://mcp.crystalknows.com/"
        }
    }
}
```

> Crystal doesn't let AI tools sign in on their own. Create an app in your Crystal account first, then use its client ID and secret.

## Alternatives with an official MCP server

In Social, PR & influencers:

- [Meta](https://martechdb.com/vendors/meta.md) (facebook.com)
- [X](https://martechdb.com/vendors/x.md) (x.com)
- [TikTok](https://martechdb.com/vendors/tiktok.md) (tiktok.com)
- [Salesforce](https://martechdb.com/vendors/salesforce.md) (salesforce.com)

## Get this data

- API: `curl https://martechdb.com/api/v1/vendors/crystalknows.com`
- MCP: `claude mcp add --transport http martechdb https://martechdb.com/mcp`, then ask about Crystal.
- Web page: https://martechdb.com/vendors/crystal