Add betterimage remote server

[mfundakowski]

MCP Server Information

Server Name: betterimage
Repository URL: https://github.com/mfundakowski/betterimage-mcp (distribution files; the server is hosted at https://betterimage.io/mcp)
Brief Description: Social cards and OG images from designed templates. Make a card from any page URL, browse 100 starter designs, check how a link previews on X, LinkedIn, Slack and Discord, and generate Open Graph and Twitter meta tags. Docs: https://betterimage.io/mcp

Remote server, Streamable HTTP, no authentication required (the account tools accept an optional API key; an OAuth 2.1 variant exists at https://betterimage.io/mcp/account for clients that want it). Also listed in the official MCP Registry as io.betterimage/betterimage.

Basic Requirements

• Open Source: Uses acceptable license (Apache-2.0, MIT, BSD-2-Clause, BSD-3-Clause or other permissive license) - distribution repo is MIT; the server itself is a hosted service
• MCP Compliant: Implements MCP API specification (revisions 2024-11-05 through 2026-07-28)
• Active Development: Recent commits and maintained
• Docker Artifact: Dockerfile - not applicable, remote server
• Documentation: Basic README and setup instructions
• Security Contact: hello@betterimage.io

Submitter Checklist

• This server meets the basic requirements listed above
• I understand this will undergo automated and manual review.
• I have tested the MCP Server using task validate -- --name SERVER_NAME
• I have built the MCP Server using task build -- --tools SERVER_NAME - not applicable, remote server
• If the server requires credentials to test it, I have shared test credentials using this form - not required, no auth