share/artifacts MCP server

Publish agent-created HTML artifacts and receive a shareable URL. The npm package remains @aiformasses/mcp-server for compatibility.

Preferred: connect your agent

Give your agent the public setup page. Agents supporting remote MCP, browser authorization, and CIMD or DCR can configure the hosted connection at https://shareartifacts.dev/api/mcp without installing this package or creating a permanent token.

Cursor: hosted OAuth connection

This repository includes a Cursor plugin at .cursor-plugin/plugin.json. Its mcp.json connects directly to the hosted service; no npm install or personal access token is required. Each user signs in to their own share/artifacts account and approves access in the browser.

For manual setup, merge this configuration into your project's .cursor/mcp.json (preserve any other servers):

{
  "mcpServers": {
    "share-artifacts": {
      "url": "https://shareartifacts.dev/api/mcp",
      "auth": {
        "CLIENT_ID": "53f91130-7752-4e99-9667-7a6dffdab529",
        "scopes": [
          "pages:read",
          "pages:write",
          "styles:read",
          "styles:write",
          "offline_access"
        ]
      }
    }
  }
}

The client ID is public and grants no account access by itself. Do not add a client secret. When connecting, the consent page identifies the pre-registered Cursor configuration and warns that the requesting local app is not verified. Approve only a connection you just started. The desktop callback is exactly http://localhost:8787/callback; the registered web callback is https://www.cursor.com/agents/mcp/oauth/callback.

With Cursor CLI installed, run from the configured project:

agent mcp enable share-artifacts
agent mcp login share-artifacts
agent mcp list-tools share-artifacts

Complete browser sign-in and consent when prompted. If you cancel, run login again when ready. Ask the agent to publish an HTML artifact, inspect the returned URL, and specify public sharing explicitly if you want anyone with the link to open it. Publishing defaults to private. A free account includes five successful publishes or updates in total.

Verified on September 17, 2026 with Cursor CLI 2026.09.15-d2fe57e: production OAuth sign-in, consent, and authenticated discovery of all 15 hosted tools. The maintainer also confirmed the local plugin works in Cursor CLI. For a plugin connection that needs authentication, enter /mcp list inside the interactive CLI, select Share Artifacts, and choose Login in its detail view. Complete browser consent, then return to the agent. The desktop editor and Cursor web agent have not been independently verified.

Personal-token fallback

Use this package when your MCP client does not support the hosted OAuth flow. It requires Node.js 20.19 or newer and npx:

node --version
npx --version

Use Connect a background agent in token settings. Create a personal access token and insert it directly into the local configuration. share/artifacts cannot display the token again.

Codex

Add the server to ~/.codex/config.toml, then restart only the share-html MCP entry from Codex settings. The first start downloads the pinned package through npx. The share-html entry name is a stable compatibility identifier; it does not change the share/artifacts product name.

[mcp_servers."share-html"]
command = "npx"
args = ["-y", "@aiformasses/mcp-server@0.2.0"]

[mcp_servers."share-html".env]
SHARE_HTML_API_BASE_URL = "https://shareartifacts.dev/api/v1"
SHARE_HTML_API_TOKEN = "PASTE_TOKEN_HERE"

Standard MCP JSON

{
  "mcpServers": {
    "share-html": {
      "command": "npx",
      "args": ["-y", "@aiformasses/mcp-server@0.2.0"],
      "env": {
        "SHARE_HTML_API_BASE_URL": "https://shareartifacts.dev/api/v1",
        "SHARE_HTML_API_TOKEN": "PASTE_TOKEN_HERE"
      }
    }
  }
}

Replace PASTE_TOKEN_HERE locally. Treat SHARE_HTML_API_TOKEN like a password. Do not commit it, paste it into agent chat, include it in a URL or HTML, or send it to anyone. If it is lost or exposed, revoke the token and create another.

Tools

The repository version exposes get_recipe, publish_html, publish_presentation, update_page, get_page, list_pages, publish_page, unpublish_page, and delete_page. Call get_recipe without arguments to discover the first-party catalog; pass a recipeId and optional integer version for the complete reviewed recipe.

For slides, decks, pitch decks, talks, lessons, and keynote-style requests, call get_recipe with recipeId: "presentation-deck" before authoring, then use publish_presentation. The agent owns the cumulative narrative, concise copy, accessible HTML/CSS, responsive and print behavior, and visual inspection of every slide. share/artifacts owns sanitization, post-sanitization structural validation, persistence, access control, CSP, and presentation controls. A successful presentation publish returns the canonical /view/{publicId} viewer URL plus a content hash for reconciliation.

Visual QA is an iterative rendering task, not a markup check. When browser or rendering tools are available, inspect the actual rendered pixels of every slide at the declared desktop canvas, a narrow viewport, and print size. Check for clipped content, unintended overflow or overlap, crushed glyphs or words, unsafe edge placement, footer/counter collisions, weak contrast, and incorrect image cropping. Fix the source HTML/CSS, re-render every affected slide, and repeat until the complete deck passes; re-render every slide after changing shared CSS, layout rules, or design tokens. Intentional decorative bleed is allowed when it does not obscure meaningful content. DOM measurements and a single overview screenshot are not sufficient. If rendering is unavailable, tell the user that visual QA was not completed rather than claiming verification; publishing may proceed with that disclosure.

publish_presentation defaults to schema version 1 and a 16:9 stage; 4:3 is also supported:

{
  "title": "Q4 strategy",
  "html": "<!doctype html><html>...</html>",
  "presentation": { "schemaVersion": 1, "aspectRatio": "16:9" },
  "sharing": { "mode": "public" }
}

The deck HTML must contain exactly one main.share-presentation whose direct children are sequential section.share-slide elements (slide-1 through slide-N). Each slide must use aria-labelledby to reference a unique heading inside that slide. Invalid decks are not published, and invalid updates preserve the previous version.

list_pages returns 25 artifact metadata records by default, never their HTML. Use query for a case-insensitive title or page-ID search, status for published or unpublished, and limit for up to 100 results. When pageInfo.nextCursor is present, pass it back as cursor with the same filters:

{
  "query": "launch report",
  "status": "published",
  "limit": 25,
  "cursor": "CURSOR_FROM_THE_PREVIOUS_RESULT"
}

The response distinguishes resultCount, matchingCount, and totalLibraryCount, so agents can search or traverse hundreds of artifacts without loading the complete library.

publish_html accepts optional sharing, so the artifact is protected before its URL becomes available. Omit sharing for owner-only private access. Public access must be explicit. Examples:

{
  "html": "<!doctype html><html>...</html>",
  "sharing": { "mode": "public" }
}

{
  "html": "<!doctype html><html>...</html>",
  "sharing": {
    "mode": "restricted",
    "methods": {
      "emailDomain": "example.com",
      "recipients": ["reader@partner.example"],
      "password": {
        "action": "set",
        "value": "at-least-10-characters"
      }
    },
    "expiresAt": "2027-01-01T00:00:00.000Z"
  }
}

Restricted methods are OR alternatives: a verified exact-domain identity, a verified exact recipient, or the password can independently open the artifact. Initial password publishing requires action: "set"; later updates may use action: "keep". A successful controlled publish returns its effective sharing mode and revision with the page URL.

It also exposes controlled-sharing tools: get_page_sharing, set_page_sharing, and end_current_viewing_sessions. Read the latest sharing revision before changing access. Pages can be private to their owner, public to anyone with the link, or restricted by any combination of one exact email domain, exact verified email recipients, and a password.

The installation examples are pinned to the current 0.2.0 release. Hosted and local workspace builds use the repository contract as soon as their app build is deployed. The stdio fallback receives new tools only after a separately authorized npm package release.

The share/artifacts API sanitizes every document. JavaScript, forms, embeds, and external network calls are removed or blocked before a page is published.

SHARE_HTML_*, share-html, and the ShareHtml* TypeScript exports remain stable compatibility identifiers so existing client configurations and code do not break.

Troubleshooting

• npx: command not found: install Node.js 20.19 or newer, then reopen your terminal or MCP client.
• invalid_api_token: replace a revoked or incorrect personal access token.
• Publish timeout: inspect recent pages by title and creation time before retrying. The operation may have completed, and retrying can create a private duplicate.
• Recipe request timeout: get_recipe is read-only and safe to retry.
• Connection failure: confirm the API URL uses HTTPS and that your network can reach shareartifacts.dev.

Source and issues: arunai30/share-html-mcp