n8n-nodes-stacktree

An n8n community node for Stacktree — the publish primitive for the HTML your agents make. Publish a page to a private, unguessable URL, gate it behind a password or a client's email domain, expire or burn it, and read the feedback viewers leave on it.

Works as a regular workflow node and as a tool inside n8n AI Agent workflows (usableAsTool).

Why this over a generic static host

Stacktree is private by default and built for agent-made deliverables:

• Private-by-default unguessable link, X-Robots-Tag: noai on every page. Opt into a public slug only when you want one.
• Gating a passcode, or an email-domain gate where the viewer proves they own an @yourclient.com address via a magic link, no account. The passcode works on an anonymous publish and on a paid plan; the email-domain gate is paid-plan only.
• Lifetime control expiry, or burn-after-read (the page deletes itself after the first open).
• A pre-flight secret scan that can block a publish carrying a leaked API key.
• The feedback loop viewers annotate the page in place; you read the annotations and resolve them. No competitor in this category exposes this.

Installation

In n8n: Settings → Community Nodes → Install, then enter n8n-nodes-stacktree.

Credentials

Publishing works with no credentials — the link is anonymous, expires in 24 hours, and the response includes a claim_token you can use to adopt the page into an account later.

Add a Stacktree API credential (an API key from app.stacktr.ee) for every other operation: update, get, list, delete, gating, and feedback.

What the account's plan changes

The node sends what you configure; the API applies the account's plan on top:

| | Anonymous | Free | Paid, from $19/mo | | --- | --- | --- | --- | | Pages | — | 3 in total | 25 active, or unlimited | | Page lifetime | 24 hours | 7 days | permanent unless you set an expiry | | Passcode | ✓ | — | ✓ | | Email-domain gate | — | — | ✓ |

Free's 3 is a lifetime count: deleting a page does not give the slot back. Expiry is clamped, not refused: "never" on a free account comes back as 7 days from now, so read expires_at off the node output rather than assuming. Everything else that a plan does not cover fails loudly with an HTTP 402 and a plan_* error code (plan_lifetime_limit_exceeded, plan_password_not_available, plan_viewer_gate_not_available), which surfaces as a node error you can branch on. Current plans: https://stacktr.ee/pricing.

Operations

Site

| Operation | What it does | | --- | --- | | Publish | Upload HTML (text) or a file/zip (binary) and get back a private URL. Options: password, public slug, expiry, burn-after-read, feedback toolbar, PII scan. | | Update | Replace the content at an existing URL in place. The URL does not change. | | Set Options | Change gating, lifetime and filing: password, email-domain gate, expiry, public slug, feedback toolbar, title, and the client space this page is filed under (or Detach to unfile it). Only the fields you add are changed. | | Get | Fetch a site's metadata. | | Get Content | Return the exact stored HTML, so you can edit it and Update in place. | | List | List sites owned by the API key. Return All follows the API's keyset cursor across pages; filter by Client Space to list one client's deliverables. | | Delete | Permanently delete a site. |

Client Space

A client space groups everything you publish for one client. Filing is free on every plan; on a paid plan the space can take the client's own address (acme.youragency.com), serve a generated portal, and carry one passcode that opens every page in it. Publishing with a Client Space creates the space on first use, so these operations are for managing spaces, never a prerequisite for filing.

| Operation | What it does | | --- | --- | | Create | Set a client up before any work is published for them. Idempotent with the auto-create: an existing space of the same name comes back rather than a duplicate. | | Update | Rename, archive or unarchive, or set the space-wide viewer gate (passcode or email domain) that every page in the space inherits. | | Get | One space with its pages, portal state, and connected address. | | List | Every space on the account, most recently active first, with page counts and hostname. | | Delete | Remove the space. Its pages are not deleted, they detach and keep their URLs — but the space-wide gate goes with it, so gate those pages first. Prefer Update → Archived when a client is simply finished. |

Feedback

| Operation | What it does | | --- | --- | | List | Read the annotations viewers left via the on-page toolbar (unresolved first). | | Resolve | Mark a feedback item addressed after fixing the page, with an optional note. |

The full loop, entirely in n8n: Publish with the feedback toolbar on → viewer annotates → Feedback: List → Update the page → Feedback: Resolve.

Example: publish a Claude artifact privately

1. A previous node produces HTML (e.g. from an AI model).
2. Stacktree → Site → Publish, Content Source HTML Text, map the HTML in.
3. Under Options, set Expiry 168 (and a passcode, if the account's plan includes one).
4. The node outputs { url, id, unlisted_token, expires_at, ... } — send url on to Slack, email, wherever.

Development

npm install
npm run dev     # hot-reload against a local n8n
npm run build   # emit dist/
npm run lint

Built with @n8n/node-cli.

Changes in 0.2.0

• Client Space resource (create, get, list, update, delete), plus filing and detaching from Site → Set Options and a Client Space filter on Site → List.
• Fixed: the "Site ID or Slug" field did not render on any screen in 0.1.2. A displayOptions.hide block with two keys hides on either one, so Site Get / Get Content / Update / Set Options / Delete and Feedback List had no field to type the id into. If you are on 0.1.2, upgrade.
• Breaking: Site → List now emits one item per site. It previously emitted a single item holding the whole { sites, has_more, … } envelope. Remove any Split Out node you added to work around that.

License

MIT