The Ephemeral MCP server,
connected in one click.
Run AI agent tasks in isolated sandboxes with a cost cap, saved workflows and scoped connections. Connect the official Ephemeral MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Ephemeral to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http ephemeral https://app.ephemer.al/mcpRun in your terminal, then restart Claude Code.
Ephemeral · https://app.ephemer.al/mcp
What your AI can do with Ephemeral
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “create_run”: Start an AI agent run in an isolated sandbox and return the run (status queued) at once. Give a prompt, or the name of a saved workflow. Pol.”
“Use “get_run”: Read a run: status, output, error, cost and billing_pending. COST: while billing_pending is true (or the run is still going), cost_micros is.”
“Use “wait_for_run”: Wait until a run finishes (succeeded, failed, cancelled, interrupted or timed_out) or the wait ends, then return the run. After the run fini.”
“Use “list_runs”: List the organization's runs, newest first, with a cursor for the next page. Each run has cost_final: when false, cost_micros is provisional.”
How secure is the Ephemeral MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Ephemeral holds up.
Official endpoint
Operated by Ephemeral (ephemer.al) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Ephemeral adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Ephemeral
Choose Ephemeral in the gate directory. No sign-in needed.
Use it anywhere
Ephemeral's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Ephemeral exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
create_run — Start an AI agent run in an isolated sandbox and return the run (status queued) at once. Give a prompt, or the name of a saved workflow. Pol
get_run — Read a run: status, output, error, cost and billing_pending. COST: while billing_pending is true (or the run is still going), cost_micros is
wait_for_run — Wait until a run finishes (succeeded, failed, cancelled, interrupted or timed_out) or the wait ends, then return the run. After the run fini
list_runs — List the organization's runs, newest first, with a cursor for the next page. Each run has cost_final: when false, cost_micros is provisional
cancel_run — Cancel a run that has not finished. Work already done is billed. Cancelling a finished run changes nothing.
list_workflows — List the organization's saved workflows (reusable run definitions). Each entry has the workflow's name and, when set, its description, input
get_workflow — Read a saved workflow's definition: description, prompt, model, files, connections, limits and its input_schema and output_schema. Credentia
list_models — Find models. Returns a compact list (id, name, context_length, input and output USD per million tokens, zero_data_retention where known), th
+ 11 more tools once connected
Who runs the Ephemeral MCP server?
The Ephemeral MCP server at a glance
https://app.ephemer.al/mcpQuestions, answered
Is there an official Ephemeral MCP server?
Yes — Ephemeral operates its own remote MCP server at app.ephemer.al. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Ephemeral to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Ephemeral in the directory. No account or sign-in is needed. From then on, Ephemeral's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Ephemeral runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Ephemeral MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Ephemeral in minutes. No credit card required.
Connect more than just Ephemeral
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Ephemeral in: Claude · Claude Code · ChatGPT · Cursor · VS Code