Add OpenRouter MCP Multimodal

[stabgan]

Adds OpenRouter MCP Multimodal — an all-in-one MCP server that makes OpenRouter's 300+ models accessible from Claude Desktop, Cursor, Kiro, VS Code, Windsurf, Cline, and any other MCP-compatible client.

What it does

11 MCP tools covering the full multimodal matrix:

• Text chat via chat_completion against any OpenRouter model
• Analyze images, audio, video (mp4/mpeg/mov/webm) from local paths, URLs, or data URLs
• Generate images (Gemini 2.5 Flash Image, aspect-ratio controls, reference images), speech + music (OpenAI / Lyria), and video (Veo 3.1 / Sora 2 Pro / Seedance / Wan via OpenRouter's async POST /videos API)
• Model discovery: search_models, get_model_info, validate_model

Users supply their own OPENROUTER_API_KEY; nothing is hosted.

Distribution

• npm: @stabgan/openrouter-mcp-multimodal — ~950 installs / month, ~3,500 all-time
• Docker Hub: stabgan/openrouter-mcp-multimodal — 1,270+ pulls, multi-arch (amd64 + arm64)
• GHCR, Smithery (stabgan/openrouter-mcp-multimodal), official MCP Registry (io.github.stabgan/openrouter-multimodal), Glama, mcp.so

Traction

• 34 GitHub stars, 18 forks (~53% fork-to-star ratio — people modifying, not just bookmarking)
• +43% npm traffic growth last 30 days vs prior 30 days (652 → 934)
• Merged community PRs from independent contributors in the last week
• Listed on punkpeye/awesome-mcp-servers (PR open, CI green), indexed on mcp.so, Glama, Playbooks

Form validation checklist

• ✅ apps/openrouter-mcp-multimodal/app.yaml with name, description (233 chars, under the 300 cap), url, docs, tags, open_source, date_added
• ✅ apps/openrouter-mcp-multimodal/logo.png — 256×256 PNG (matches the recommended size)
• ✅ Tags: productivity, chat, creative — all from the allowlist
• ✅ README.md NOT edited (it's auto-generated per CONTRIBUTING.md)
• ✅ Uses OpenRouter for AI model access
• ✅ User brings their own OpenRouter API key (standard MCP env-var config)
• ✅ MIT licensed, publicly accessible

Happy to tweak tags, description, or any metadata if the maintainers prefer a different framing.