# Sui Knowledge Base MCP server

> Search Sui documentation and knowledge sources with semantic search powered by kapa.ai

- Listing: https://mcp.tc/i/sui-knowledge-base
- Connect: use the server's own URL `https://sui.mcp.kapa.ai` (OAuth sign-in at the server); clients connect to it directly. The listing link is a page, not an MCP endpoint.
- Type: remote (Streamable HTTP)
- Auth: OAuth sign-in
- Category: [Docs & Knowledge](https://mcp.tc/c/docs-knowledge)
- Vendor: MystenLabs
- Homepage: <https://sui.io>
- Repository: <https://github.com/MystenLabs/sui>

## About

Connects an assistant to the Sui knowledge base, which covers Sui documentation and related knowledge sources. It runs semantic search so answers about Sui, the Move language and the Sui ecosystem can come from the source material instead of model memory.

It runs as a hosted streamable HTTP endpoint at https://sui.mcp.kapa.ai. The endpoint accepts OAuth tokens, but the vendor does not document how users get access, so sign-in details are not confirmed.

## What it can do

- Search Sui documentation semantically
- Look up answers from Sui knowledge sources
- Ground Move and Sui development questions in official material

## Example prompts

- "How do I define an object with a key ability in Sui Move?"
- "Search the Sui docs for how gas fees are calculated."
- "What does the Sui documentation say about staking SUI?"

## Install

### Claude Code

1. Run this in a terminal, in your project folder:

```bash
claude mcp add --transport http sui-knowledge-base https://sui.mcp.kapa.ai
```

2. Start Claude Code, type `/mcp`, pick **sui-knowledge-base** and choose **Authenticate**. A browser window opens for the MystenLabs sign-in.

Add `--scope user` to make it available in every project, not just this one.

### Claude Desktop

1. Open **Customize → Connectors**, click **+ Add**, then **Add custom connector**.

2. Name it **Sui Knowledge Base** and paste this URL:

```url
https://sui.mcp.kapa.ai
```

3. Click **Add**, then **Connect**, and sign in when MystenLabs asks.

Claude Desktop’s JSON config file only starts local servers. Remote servers go through Connectors, and connectors you add on claude.ai show up here too.

### claude.ai

1. Open the connector form on claude.ai. This button fills in the name and URL for you:

[Add to claude.ai](<https://claude.ai/customize/connectors?modal=add-custom-connector&connectorName=Sui%20Knowledge%20Base&connectorUrl=https%3A%2F%2Fsui.mcp.kapa.ai>) (opens connector settings)

2. Check that the URL reads `https://sui.mcp.kapa.ai` and click **Add**.

3. Click **Connect** and sign in when MystenLabs asks.

Free plans allow one custom connector. On Team and Enterprise plans an owner adds it under **Organization settings → Connectors**.

### ChatGPT

1. On chatgpt.com, go to **Plugins**, select **+**, then **Add custom MCP server**.

2. Enter a name for the server.

3. Under **Connection**, paste `https://sui.mcp.kapa.ai` as the server URL, then for authentication choose **OAuth**. ChatGPT sends you to MystenLabs to sign in.

4. Check **I understand and want to continue**, then select **Create as a plugin**.

Whether you can add a custom MCP server depends on your ChatGPT plan and your workspace permissions (in Business workspaces, admins and owners can).

### Cursor

[Add to Cursor](<https://cursor.com/install-mcp?name=sui-knowledge-base&config=eyJ1cmwiOiJodHRwczovL3N1aS5tY3Aua2FwYS5haSJ9>) (opens Cursor)

Or add it by hand to `~/.cursor/mcp.json` (all projects) or `.cursor/mcp.json` (this project):

`mcp.json`:

```json
{
  "mcpServers": {
    "sui-knowledge-base": {
      "url": "https://sui.mcp.kapa.ai"
    }
  }
}
```

Cursor shows **Needs authentication** next to the server. Click the button beside it to sign in.

### VS Code

[Install in VS Code](<https://vscode.dev/redirect/mcp/install?name=sui-knowledge-base&config=%7B%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fsui.mcp.kapa.ai%22%7D>) (opens VS Code)

Or from a terminal:

```bash
code --add-mcp '{"name":"sui-knowledge-base","type":"http","url":"https://sui.mcp.kapa.ai"}'
```

Or commit it to the repo in `.vscode/mcp.json`:

`.vscode/mcp.json`:

```json
{
  "servers": {
    "sui-knowledge-base": {
      "type": "http",
      "url": "https://sui.mcp.kapa.ai"
    }
  }
}
```

VS Code asks you to sign in the first time the server starts.

### Devin Desktop

1. Add it to `~/.config/devin/mcp_config.json` (macOS and Linux) or `%APPDATA%\devin\mcp_config.json` (Windows):

`mcp_config.json`:

```json
{
  "mcpServers": {
    "sui-knowledge-base": {
      "serverUrl": "https://sui.mcp.kapa.ai"
    }
  }
}
```

2. Refresh the MCP server list in Cascade and sign in when asked.

Devin Desktop is the new name for Windsurf. It reads `serverUrl` (or `url`) for remote servers.

### Codex

```bash
codex mcp add sui-knowledge-base --url https://sui.mcp.kapa.ai
codex mcp login sui-knowledge-base
```

Or edit `~/.codex/config.toml` directly:

`config.toml`:

```toml
[mcp_servers.sui-knowledge-base]
url = "https://sui.mcp.kapa.ai"
```

### Gemini CLI

```bash
gemini mcp add --transport http sui-knowledge-base https://sui.mcp.kapa.ai
```

Then, inside Gemini CLI, run `/mcp auth sui-knowledge-base` to sign in.

This adds it to the current project. Add `-s user` to use it everywhere.

### Any client

Most clients accept this shape. Some name the URL field differently: `serverUrl` in Devin Desktop, `httpUrl` in Gemini CLI’s settings file.

```json
{
  "mcpServers": {
    "sui-knowledge-base": {
      "type": "http",
      "url": "https://sui.mcp.kapa.ai"
    }
  }
}
```

Zed puts servers under `context_servers` in its settings. Cline needs `"type": "streamableHttp"`, or it assumes SSE.

Client only starts local servers? Bridge it with `npx -y mcp-remote https://sui.mcp.kapa.ai`.

## Details

- Server version: 1.0.0
- Last checked: 2026-11-15 (reachable, asks for credentials)
- Listed: 2026-11-04
- Updated: 2026-11-04

---
Source: https://mcp.tc/i/sui-knowledge-base (mcp.tc is an independent directory, not affiliated with this server's publisher). Corrections: https://mcp.tc/report