What does the share html mcp server do?

It connects Share HTML to MCP-compatible AI assistants such as Claude and Cursor. Instead of copying data back and forth by hand, the assistant works with Share HTML directly.

How do I install the share html mcp server?

Run it through your MCP client's configuration using `npx -y wrangler`. Add the server block to Claude Desktop's config file (or use `claude mcp add` for Claude Code), restart the client, and the tools appear automatically. Full snippets are on this page.

What credentials does it need?

It reads `PRIVATE_ACCESS_KEY`, `MCP_REGISTRY_PRIVATE_KEY`, `INDEXNOW_KEY`, `SUPABASE_REST_KEY`, `WORKER_API_SECRET`, `SUPABASE_SEND_EMAIL_HOOK_SECRET` from the environment. Store these in your client's env block or a secrets manager — never commit them to a repository — and grant the narrowest scope that still covers your use case.

Share HTML MCP Server — Install Guide & Tools

Name: Share HTML MCP Server
Author: lifeodyssey

What is the Share HTML MCP server?

Create sandboxed public-unlisted or access-key-protected HTML previews through a remote MCP server. The share html mcp server wraps that behind the Model Context Protocol, so an assistant can use it rather than through you.

What it actually does

Upload one HTML file, then share a sandboxed preview as an unlisted public link or an access-key-protected private link.

Anonymous upload flow with a 365-day expiry
Supabase magic-link sign-in for keeping and deleting shares, with auth email delivery handled by Cloudflare Email Service
Claim token flow for attaching an anonymous upload to an account later
Public-unlisted and access-key-protected private-link visibility modes
Share page with status, risk score, and embedded preview after any required private-link unlock
Direct preview URL for opening the uploaded HTML by itself

Configuration

You will need 6 environment variables: PRIVATE_ACCESS_KEY, MCP_REGISTRY_PRIVATE_KEY, INDEXNOW_KEY, SUPABASE_REST_KEY, WORKER_API_SECRET, SUPABASE_SEND_EMAIL_HOOK_SECRET. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Adding it to your client

Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.

When to reach for it

Among the team communication options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. It is maintained by lifeodyssey; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Share HTML's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Caveats

Your data travels to the provider's service, so the usual questions apply about what you send and what they retain.
Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
MCP clients confirm each tool call by default. Leave that on until you have watched what the share html mcp server does with a few real requests.

How to install the Share HTML MCP server

{
  "mcpServers": {
    "share-html": {
      "command": "npx",
      "args": ["-y", "wrangler"],
      "env": {
        "PRIVATE_ACCESS_KEY": "your-value",
        "MCP_REGISTRY_PRIVATE_KEY": "your-value",
        "INDEXNOW_KEY": "your-value",
        "SUPABASE_REST_KEY": "your-value",
        "WORKER_API_SECRET": "your-value",
        "SUPABASE_SEND_EMAIL_HOOK_SECRET": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

Variable	Description	Required
PRIVATE_ACCESS_KEY	Credential the server authenticates with.	Yes
MCP_REGISTRY_PRIVATE_KEY	Credential the server authenticates with.	Yes
INDEXNOW_KEY	Credential the server authenticates with.	Yes
SUPABASE_REST_KEY	Credential the server authenticates with.	Yes
WORKER_API_SECRET	Credential the server authenticates with.	Yes
SUPABASE_SEND_EMAIL_HOOK_SECRET	Credential the server authenticates with.	Yes

Share HTML MCP Server

What is the Share HTML MCP server?

What it actually does

Configuration

Adding it to your client

When to reach for it

Caveats

How to install the Share HTML MCP server

Configuration

Frequently asked questions

Alternatives to the Share HTML MCP server

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