Rivemcp vs Imgx

A side-by-side look at the Rivemcp and Imgx MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Rivemcp logoRivemcpMultimedia Process · Local subprocess (stdio)MCP server for creating and editing Rive (.riv) animation files. 139 tools for AI-driven animation.49FairAuth: api key requiredImgx logoImgxMultimedia Process · Local subprocess (stdio)AI image generation and editing via CLI or MCP. Text-based editing, multi-provider.52GoodAuth: not declared

Verdict: choose Rivemcp for multimedia process work as a local process; choose Imgx for multimedia process as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Rivemcp logoChoose Rivemcp when

  • You need dedicated capabilities in the Multimedia Process domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: API key required.
  • You have the keys it needs: POLYMATION_LICENSE_KEY.
Explore Rivemcp

Imgx logoChoose Imgx when

  • You need dedicated capabilities in the Multimedia Process domain.
  • You prefer a local stdio subprocess transport.
  • You have the keys it needs: GEMINI_API_KEY.
  • You want tools like generate_image, edit_image, edit_last.
Explore Imgx

Feature & specification comparison

Rows where the two servers differ are marked.

SpecRivemcp logoRivemcpImgx logoImgx
CategoryMultimedia ProcessMultimedia Process
Quality signal49/100 · Fair52/100 · Good
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthAPI key requiredNot declared
PricingFreemiumNot declared
Required env varsPOLYMATION_LICENSE_KEYGEMINI_API_KEY
Verified ownerCommunity listingCommunity listing
GitHub stars11
Directory activity 5 views 0 installs 0 upvotes 0 views 0 installs 0 upvotes
ToolsNot listed10

Tools & capabilities

Rivemcp tools

No tool names declared yet. Check the project README from the listing page.

Imgx tools 10

  • generate_imageGenerate an image from a text prompt
  • edit_imageEdit an existing image with text instructions
  • edit_lastEdit the last generated/edited image (no input path needed)
  • undo_editUndo the last edit, reverting to the previous image in the session
  • redo_editRedo a previously undone edit
  • edit_historyShow all sessions and their edit history with metadata
  • switch_sessionSwitch to a different editing session
  • clear_historyClear project history (optionally delete image files)
  • set_output_dirChange the default output directory (optionally move existing files)
  • list_providersList available providers and capabilities

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Rivemcp

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "rivemcp": {
      "command": "npx",
      "args": [
        "-y",
        "rivemcp"
      ],
      "env": {
        "POLYMATION_LICENSE_KEY": "YOUR_POLYMATION_LICENSE_KEY_HERE"
      }
    }
  }
}

Imgx

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "imgx": {
      "command": "npx",
      "args": [
        "-y",
        "has"
      ],
      "env": {
        "GEMINI_API_KEY": "YOUR_GEMINI_API_KEY_HERE"
      }
    }
  }
}

Frequently asked questions

Rivemcp is categorized under Multimedia Process and uses a local stdio subprocess. Imgx belongs to Multimedia Process and uses a local stdio subprocess. Pick Rivemcp for multimedia process work and Imgx for multimedia process.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Rivemcp is listed as freemium — a free tier with paid plans. Auth: api key required. Imgx has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add rivemcp and imgx as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Rivemcp has a quality signal of 49/100 (Fair) with 5 views, 0 installs and 1 GitHub stars. Imgx has 52/100 (Good) with 0 views, 0 installs and 1 GitHub stars.