Lassare — Claude Code MCP server: setup
Lassare routes an AI coding agent’s questions and approval requests to Slack, so you can answer from a phone while the agent keeps running.
claude mcp add --transport http lassare https://mcp.lassare.com/mcpWhat Lassare does
Lassare is an MCP server for Claude Code, Codex, Cursor, Gemini CLI and other compatible clients. Its ask tool sends a clarification request to Slack, while approve presents an approval or denial action for a risky step. The agent receives the reply and carries on.
The package includes hooks for supported agents. They can keep work moving between questions, intercept commands such as rm -rf, git push --force and sudo, and ask one more question before the agent stops. The intercepted-command list lives in permission-approve.sh. Unanswered questions and approvals expire after 15 minutes.
Setup requires a Lassare account, a connected Slack workspace and an API key from Agent Setup. Configuration is copied into the project by hand. Use /lassare-slack for remote questions or /lassare-inline for questions in the current conversation. Without a connected Slack workspace, remote replies have nowhere to go.
What it helps with
- route agent questions to Slack
- approve risky shell commands from a phone
- switch between Slack and inline questions
- ask for a final check before the agent stops
Example prompts for the agent
- Switch remote questions on with
/lassare-slack. - Ask me in Slack before you choose the next implementation step.
- Request approval through Lassare before running a risky command.
How to install Lassare
Platform CLI: remote server
claude mcp add --transport http lassare https://mcp.lassare.com/mcpPlatform CLI: remote server
codex mcp add lassare --url https://mcp.lassare.com/mcpConfig file
{
"mcpServers": {
"lassare": {
"url": "https://mcp.lassare.com/mcp"
}
}
}Config file
{
"servers": {
"lassare": {
"type": "http",
"url": "https://mcp.lassare.com/mcp"
}
}
}Platform CLI: remote server
gemini mcp add -t http lassare https://mcp.lassare.com/mcpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about Lassare
How do I install Lassare in Claude Code?
Run claude mcp add --transport http lassare https://mcp.lassare.com/mcp. You also need a Lassare account with a connected Slack workspace and an API key from Agent Setup.
What does Lassare do?
It connects an MCP-compatible coding agent to Slack for questions and action approvals. You reply in Slack, and the agent receives the decision.
What does Lassare require for remote approvals?
You need to connect a Slack workspace and configure the MCP server. Hooks cover dangerous-command checks for supported agents, and the command list can be edited in permission-approve.sh.
