eSignatures.com MCP Server vs Cua Driver
A side-by-side comparison of two Productivity servers — tools, transport, auth, maintenance, and copy-paste config for each.
| eSignatures.com MCP Server AI-friendly electronic signatures: create, edit, send, and manage Markdown-based contracts via the eSignatures.com API. Unverified stdio (local) API key Python | Cua Driver Background computer-use MCP server that drives native macOS, Windows, and Linux desktop apps without stealing focus. Unverified stdio (local) No auth Rust | |
|---|---|---|
| Category | Productivity | Productivity |
| Language | Python | Rust |
| Transport | stdio (local) | stdio (local) |
| Auth | API key | None |
| GitHub stars | 37 | 19k |
| Last commit | 1 day ago | 12 hours ago |
| Verified | ||
| Actively maintained | ||
| Install | — | /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/trycua/cua/main/libs/cua-driver/scripts/install.sh)" |
| Repo | Open | Open |
Verdict
Pick eSignatures.com MCP Server if you prefer its approach (ai-friendly electronic signatures: create, edit, send, and manage markdown-based contracts via the esignatures.com api).
Pick Cua Driver if you prefer the more popular, battle-tested option, and you want zero-setup with no API key.
Add eSignatures.com MCP Server
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"esignatures-com-mcp-server": {
"command": "uvx",
"args": [
"mcp-server-esignatures"
],
"env": {
"ESIGNATURES_SECRET_TOKEN": "your-esignatures-api-secret-token"
}
}
}
}Requires `uv` (the Python package runner). Install it from https://docs.astral.sh/uv/ if `uvx` is not found.
Add Cua Driver
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/trycua/cua/main/libs/cua-driver/scripts/install.sh)"Paste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"cua-driver": {
"command": "cua-driver",
"args": [
"mcp"
]
}
}
}FAQ
eSignatures.com MCP Server or Cua Driver — which is better?
Pick eSignatures.com MCP Server if you prefer its approach (ai-friendly electronic signatures: create, edit, send, and manage markdown-based contracts via the esignatures.com api). Pick Cua Driver if you prefer the more popular, battle-tested option, and you want zero-setup with no API key.
Can I use both eSignatures.com MCP Server and Cua Driver?
Yes — MCP clients let you enable multiple servers at once. Add both configs to your client's mcpServers and use whichever tool fits the task.
Do eSignatures.com MCP Server and Cua Driver work with Claude, Cursor and Windsurf?
Both do. Copy the per-client config below into Claude Desktop, Cursor, or Windsurf.