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Ephemeral

Official registry AI and agents

Run AI agent tasks in isolated sandboxes with a cost cap, saved workflows and scoped connections.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http ephemeral 'https://app.ephemer.al/mcp' --header 'Authorization: <An Ephemeral API key as a bearer token, for clients that do not sign in with OAuth (those need only the URL). Create one under Keys in the dashboard; use a member key for agents.>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "ephemeral": {
            "type": "http",
            "url": "https://app.ephemer.al/mcp",
            "headers": {
                "Authorization": "<An Ephemeral API key as a bearer token, for clients that do not sign in with OAuth (those need only the URL). Create one under Keys in the dashboard; use a member key for agents.>"
            }
        }
    }
}

Frequently asked questions

What is Ephemeral?

Run AI agent tasks in isolated sandboxes with a cost cap, saved workflows and scoped connections.

How do I install Ephemeral?

It runs as a remote server. In Claude Code: claude mcp add --transport http ephemeral 'https://app.ephemer.al/mcp' --header 'Authorization: <An Ephemeral API key as a bearer token, for clients that do not sign in with OAuth (those need only the URL). Create one under Keys in the dashboard; use a member key for agents.>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Ephemeral need an API key?

Yes. It expects Authorization, which you set in its configuration.

Who maintains Ephemeral?

It is published by al.ephemer. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.