Stacktree
- Updated May 14, 2026
- stevysmith/stacktree-mcp
Stacktree is a MCP server that publishes HTML to private, replace-in-place URLs from MCP-compatible AI agents.
About
Stacktree (ee.stacktr/publish) is an MCP server that lets developers publish HTML snapshots to private, hard-to-guess URLs and update them in place from the same agent session. Instead of wiring S3, Vercel previews, or email attachments for every iteration, you register the remote MCP endpoint or install the npm stdio package and ask your agent to push markup you already generated—landing copy, validation surveys, pitch one-pagers, or lightweight prototypes. The model fits founders who want stakeholder review before committing to a full ship pipeline: links stay off search indexes by design, and refreshing content does not mint a new URL each time. It is an integration for quick artifact distribution, not a CMS, analytics suite, or production CDN. Pair it when you are in validate or early build and need frictionless, agent-driven publishing without owning infra.
- Publishes HTML to private, unguessable URLs usable from any MCP-compatible agent
- Replace-in-place updates on the same secret link—no redeploy choreography
- Remote streamable HTTP at https://api.stacktr.ee/mcp plus npm stdio package stacktree-mcp v0.2.1
- Streamable-http remote and stdio transport for Claude Code, Cursor, and Codex workflows
- Backed by open-source stacktree-mcp on GitHub (stevysmith/stacktree-mcp)
Stacktree by the numbers
- Data as of Jul 7, 2026 (Skillselion catalog sync)
claude mcp add stacktree-mcp -- npx -y stacktree-mcpAdd your badge
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| Package | stacktree-mcp |
|---|---|
| Transport | STDIO, HTTP |
| Auth | None |
| Last updated | May 14, 2026 |
| Repository | stevysmith/stacktree-mcp ↗ |
What it does
Ship a private HTML preview link from your agent without standing up hosting or exposing a public URL.
Who is it for?
Best when you're validating landing pages, pitch decks-as-HTML, or prototype UIs and already work in Claude Code, Cursor, or Codex.
Skip if: Skip if you need SSO, SEO-indexed marketing sites, server-side apps, or long-term production hosting with SLAs.
What you get
Your agent can push HTML to a stable secret link you can refresh in place until you are ready to ship on real hosting.
- Private, unguessable URL serving your published HTML
- Same URL updated when you publish revised HTML in place
By the numbers
- Server version 0.2.1 (registry and npm package)
- Dual access: remote streamable-http + npm stdio identifier stacktree-mcp
README.md
stacktree-mcp
MCP server for stacktr.ee. Publish HTML artifacts from any MCP client (Claude Desktop, Claude Code, Cursor, Continue, etc).
Install
Add to your MCP client config:
{
"mcpServers": {
"stacktree": {
"command": "npx",
"args": ["-y", "stacktree-mcp"],
"env": { "STACKTREE_API_KEY": "stk_live_..." }
}
}
}
Generate an API key at https://app.stacktr.ee.
Tools
| Tool | What it does |
|---|---|
publish_html |
Publish HTML; returns { url, id, expires_at, ... }. |
update_site |
Replace HTML of an existing site in place; URL is preserved. |
delete_site |
Hard delete a site. |
set_password |
Add or clear a basic-auth password. |
set_expiry |
Set hours-from-now expiry, or null for never. |
set_agentation |
Toggle the on-page Agentation feedback toolbar. |
list_sites |
List sites owned by this API key. |
Privacy defaults
Every site gets an unguessable https://stacktr.ee/p/{token}/ URL. Pass public_slug to opt into https://{slug}.stacktr.ee/.
pii_check defaults to warn — common secrets and PII shapes (emails, SSNs, credit cards, OpenAI/GitHub/Stripe API key prefixes) are flagged in the response. Pass block to refuse uploads that match.
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FAQ
Who is Stacktree publish for?
Developers and agent-first developers who need private, shareable HTML previews during validation—not production DevOps.
When should I use Stacktree publish?
Use it when you want feedback on a landing page, one-pager, or HTML mock before you buy a domain or wire CI/CD.
How do I add Stacktree publish to my agent?
Add the streamable-http remote https://api.stacktr.ee/mcp in your MCP client, or install npm package stacktree-mcp (stdio) from the MCP registry entry.