Connect to Semilattice MCP

Learn how to connect your AI assistant, IDE, or agentic tooling to Semilattice MCP

URL

The Semilattice MCP is a remote server accessible over Streamable HTTP. The URL is:

https://mcp.semilattice.ai

Client-specific instructions

This list is not exhaustive. Semilattice MCP should work with any client which supports connecting to remote MCP servers over Streamable HTTP with OAuth.

ChatGPT web

Prerequisuites: paid ChatGPT subscription

1. Navigate to Settings from the account menu (bottom left corner)
2. Click Apps & Connectors in left-side nav
3. Scroll to the bottom and open Advanced Settings
4. Toggle on Developer Mode
5. Go back to Apps & Connectors tab
6. Click Create in top right of the Connectors section
7. Add a descriptive name like semilattice in the name field and optionally a description
8. Enter https://mcp.semilattice.ai as the MCP Server URL
9. Select “OAuth” from the authentication dropdown and leave the “OAuth Client ID” and “OAuth Client Secret” fields blank
10. Check to confirm you understand the warning
11. Go through the authentication flow to create or sign into a Semilattice account with your Google email
12. Navigate back to the main chat interface, click the + button under the input field, then select More and then Semilattice to enable ChatGPT to use Semilattice

🎉 Semilattice should now be ready to use with ChatGPT!

Known issue: ChatGPT cannot execute multiple tool calls in parallel or sequentially. You have to ask every question separately or prompt ChatGPT to continue the process after every question if it has planned to predict multiple questions.

Cherry Studio

1. Click the ⚙️ icon in the top right to open settings
2. Click MCP from the left nav
3. Click + Add in the top right, then Quick Create
4. Give the server a descriptive name like “semilattice”
5. From the Type dropdown select Streamable HTTP (streamableHttp)
6. In the URL field enter the Semilattice MCP URL:

https://mcp.semilattice.ai

7. Leave the other fields as they are
8. Click Save in the top right
9. Click the toggle in the top right to connect
10. Go through the authentication flow to create or sign into a Semilattice account with your Google email

🎉 Semilattice should now be ready to use with Cherry Studio!

Claude Code

1. In a CLI where you have Claude Code installed, before running Claude Code itself, run:

claude mcp add --transport http semilattice https://mcp.semilattice.ai

2. Start Claude Code with claude
3. Run /mcp to list MCPs. You should see semilattice △ disconnected · Enter to login
4. Select the Semilattice MCP and hit Enter
5. Select the Authenticate option on the next screen
6. Go through the authentication flow to create or sign into a Semilattice account with your Google email

🎉 Semilattice should now be ready to use with Claude Code!

See the Claude Code docs for more info.

Claude desktop

Prerequisuites: paid Claude subscription

1. Navigate to Settings from the account menu (bottom left corner)
2. Click Add custom connector below the list of Connectors
3. Add a descriptive name e.g. semilattice
4. Enter the MCP URL: https://mcp.semilattice.ai
5. Leave advanced settings blank
6. Click Connect
7. Go through the authentication flow to create or sign into a Semilattice account with your Google email

🎉 Semilattice should now be ready to use with Claude!

Claude web

Prerequisuites: paid Claude subscription

1. Navigate to Settings from the account menu (bottom left corner)
2. Click Add custom connector below the list of Connectors
3. Add a descriptive name e.g. semilattice
4. Enter the MCP URL: https://mcp.semilattice.ai
5. Leave “Advanced settings” blank
6. Click Connect
7. Go through the authentication flow to create or sign into a Semilattice account with your Google email

🎉 Semilattice should now be ready to use with Claude!

Cline

1. Open the Cline plugin in your IDE
2. Find and click the MCP Servers button to open the MCP Servers menu
3. Select the Configure tab and click Configure MCP Servers
4. The cline_mcp_settings.json file will open in the editor. Update it to add Semilattice MCP:

{
    "mcpServers": {
        "semilattice": {
            "type": "streamableHttp",
            "url": "https://mcp.semilattice.ai"
        }
    }
}

5. Save the file and Semilattice MCP should appear in the Cline plugin interface
6. Click Authenticate in the Cline interface
7. Go through the authentication flow to create or sign into a Semilattice account with your Google email

🎉 Semilattice should now be ready to use with Cline!

Codex

Prerequisuites: paid ChatGPT subscription

1. Open the Codex config file, usually located at ~/.codex/config.toml. If you are using the IDE extension, you can find the config file by clicking the gear icon in the top right corner of the extension and then clicking MCP settings > Open config.toml.
2. Update the config to add Semilattice MCP and enable OAuth authentication:

[features]
rmcp_client = true # enables OAuth authentication

[mcp_servers.semilattice]
url = "https://mcp.semilattice.ai"

3. Before running codex itself, run:

codex mcp login semilattice

4. Go through the authentication flow to create or sign into a Semilattice account with your Google email
5. Start codex. You should see a brief message saying it’s connecting to Semilattice MCP. Run /mcp to verify connection.

🎉 Semilattice should now be ready to use with Codex!

See the Codex docs for more info.

Cursor

1. Click this link to add Semilattice MCP to Cursor
2. In Cursor, click Install to confirm adding Semilattice MCP
3. Click Connect to authenticate
4. Go through the authentication flow to create or sign into a Semilattice account with your Google email

🎉 Semilattice should now be ready to use with Cursor!

The above process will add the Semilattice MCP to your mcp.json file. You can also skip the steps above and edit this directly:

{
    "mcpServers": {
        "semilattice": {
            "url": "https://mcp.semilattice.ai",
            "headers": {}
        }
    }
}

See the Cursor docs for more info.

Gemini CLI

1. Open your settings.json file, usually found at ~/.gemini/settings.json
2. Add Semilattice MCP:

{
    ...other config
    "mcpServers": {
        "semilattice": {
            "httpUrl": "https://mcp.semilattice.ai"
        }
    }
}

3. Start or restart Gemini CLI with gemini
4. Authentication should be triggered automatically, if not run /mcp auth semilattice
5. Go through the authentication flow to create or sign into a Semilattice account with your Google email

🎉 Semilattice should now be ready to use with Gemini CLI!

See the Gemini CLI docs for more info.

goose

1. Select Extensions from the left-nav
2. Click Add custom extension
3. Enter a descriptive name like semilattice
4. Select Streamable HTTP from the Type dropdown
5. Enter the Semilattice MCP URL in the Endpoint field:

https://mcp.semilattice.ai

6. Leave other fields blank and click Add Extension
7. Go through the authentication flow to create or sign into a Semilattice account with your Google email

🎉 Semilattice should now be ready to use with goose!

LibreChat

1. Update your librechat.yaml file to add Semilattice MCP:

mcpServers:
  semilattice:
    type: streamable-http
    url: https://mcp.semilattice.ai
    requiresOAuth: true

2. In LibreChat, click the MCP dropdown in the main prompt input field
3. Click the 🔑 key icon next to Semilattice
4. Go through the authentication flow to create or sign into a Semilattice account with your Google email

🎉 Semilattice should now be ready to use with LibreChat!

See the LibreChat docs for more info.

VS Code

1. Open the VSCode command palette: Shift + Command + P (Mac) or Ctrl + Shift + P (Windows/Linux)
2. Type “mcp” and select the MCP: Add Server… option
3. Select the HTTP (HTTP or Server-Sent Events) option
4. Enter the Semilatatice MCP URL: https://mcp.semilattice.ai
5. Enter “semilattice” or another descriptive name when prompted for a Server ID
6. Choose whether to add the MCP globally or just to the current workspace
7. Go through the authentication flow to create or sign into a Semilattice account with your Google email

🎉 Semilattice should now be ready to use with VS Code!

The above process will add the Semilattice MCP to your mcp.json file. You can also skip the steps above and edit this directly:

{
    "servers": {
        "semilattice": {
            "url": "https://mcp.semilattice.ai",
            "type": "http"
        }
    },
    "inputs": []
}

See the VS Code docs for more info.

Clients with known problems

We’re aware that the following clients don’t support remote MCP servers with OAuth authentication:

• ChatGPT desktop
• Continue
• Gemini web
• Kiro
• n8n
• OpenCode
• Pipelex
• Roo Code
• Windsurf
• Workato
• Zed

Trouble connecting?

As MCP is still a young protocol, clients and servers can sometimes have difficulty connecting. If you’re experiencing issues with a specific chatbot, agent platform, or IDE, please email us and we’ll be happy to investigate:

[e-mail]