ZenVault
Wake-ups, webhook inboxes, TTL memory, watches and human approval for agents.
What it can do
What data it sees
Do you need an account
No: the server works without sign-in
Wake-ups, webhook inboxes, TTL memory, watches and human approval for agents. Paid per call.
How to connect
How to connect ZenVault to Claude
The server address to paste into Claude settings:
https://api.zenvault.eu/mcp
- Open Claude (claude.ai or the desktop app).
- Go to Settings → Connectors.
- Click Add custom connector.
- Paste the server address copied below into Remote MCP server URL and click Add.
- In a chat, click + → Connectors and switch the new connector on.
Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.
Authorization
After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.
How to connect ZenVault to ChatGPT
The server address to paste into ChatGPT settings:
https://api.zenvault.eu/mcp
- Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
- Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
- Open Settings → Connectors and click Create.
- Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
- Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
- In a new chat open + → Apps/Connectors and enable the connector.
OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.
Authorization
On first use ChatGPT opens the service's sign-in window. Sign in and approve access.
How to connect ZenVault to Cursor
The server address to paste into Cursor settings:
https://api.zenvault.eu/mcp
Fastest: click Open in Cursor below and confirm the prompt.
Manually:
- In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
- Paste the JSON copied below into
~/.cursor/mcp.json(per project:.cursor/mcp.jsonin the repo root). - Save the file. The server appears in the MCP list; authorize it there if asked.
Authorization
If the service needs sign-in, an authorize button appears next to the server in the MCP list.
Server tool list (44)
Raw names from tools/list. Only developers need these.
| create_wakeup | Schedule a webhook call at a future time (one-shot). Your agent can die; the call still happens. |
| create_schedule | Recurring webhook on a cron expression until the prepaid days run out. |
| create_deadman | Dead-man switch: if you stop checking in, we fire your alert webhook. |
| checkin_deadman | Check in to a dead-man switch so it does not fire. |
| delayed_delivery | Hand over a payload now; we POST it to the target at a future moment. |
| create_drip | Dump up to 100 items now; we deliver them to your webhook at a fixed rate. |
| notarize | Signed proof that a hash (or your data) existed at this moment. |
| attested_fetch | Fetch a URL and return content plus a signed receipt binding url, status, content hash and time. |
| create_inbox | Public URL that buffers inbound webhooks until you collect them. |
| collect_messages | Collect buffered messages from an inbox, bin, front door or form. |
| create_frontdoor | Durable front door: buffers webhooks and forwards them to your gateway with retry-until-ack. |
| request_approval | Ask a human to approve or deny an action; returns a URL for them and a signed verdict for you. Times out as denied. |
| check_approval | Check whether a human approved or denied your request. |
| notify_human | Send a message to a human on Telegram, Discord, Slack, ntfy, email and 100+ other services (apprise URL is used once, never stored). |
| guaranteed_delivery | POST a payload to a URL, retried with backoff until it succeeds. |
| create_vault | Create a key-value namespace with TTL that survives your runs. |
| kv_set | Store a value in a vault (max 1 MB). |
| kv_get | Read a value from a vault. |
| kv_list | List keys in a vault. |
| save_checkpoint | Save run state so you can resume after a crash. |
| create_checkpoint | Create a crash checkpoint store. |
| load_checkpoint | Load the latest saved checkpoint state. |
| store_secret | Store a value that self-destructs on first read; returns a one-time read URL. |
| create_queue | Pull-based work queue with leases; timed-out leases requeue. |
| queue_push | Push a job onto a queue. |
| queue_lease | Lease the next job from a queue. |
| queue_ack | Acknowledge (or nack) a leased job. |
| create_counter | Create an atomic counter. |
| counter_incr | Increment a counter atomically. |
| claim_operation | Idempotency firewall: claim an operation id exactly once across runs. |
| create_idempotency | Create an idempotency/replay firewall. |
| publish_page | Publish an HTML page at name.zenvault.eu for N days. |
| create_link | Create an expiring share link with click stats. |
| create_watch | Watch something and fire your webhook when it changes. Types: change, keyword, regex, structured, drift, redirect, sitemap, staleness, rss, dns, port, cert, heartbeat. |
| watch_status | Check a watch: last value, checks, fires. |
| create_escalation | Escalation chain: webhook, then after N seconds the next step, until acknowledged. |
| get_resource | Status of any resource you hold the management token for. |
| extend_resource | Extend a resource TTL by paying again. |
| cancel_resource | Cancel a resource early. |
| export_resource | Export everything under a resource before it expires. |
| credit_balance | Check the balance of your prepaid credit token. |
| create_subtoken | Mint a spend-capped child token for a sub-agent. |
| list_prices | Machine-readable price list for every ZenVault service, in USD. |
| request_feature | Tell the operator what ZenVault is missing. Free. |