Aicanvas vs Extensiondev MCP
A side-by-side look at the Aicanvas and Extensiondev MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Aicanvas for developer tools work as a local process; choose Extensiondev MCP for developer tools as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Aicanvas when
- You need dedicated capabilities in the Developer Tools domain.
- You prefer a local stdio subprocess transport.
Choose Extensiondev MCP when
- You need dedicated capabilities in the Developer Tools domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Developer Tools | Developer Tools |
| Quality signal | 49/100 · Fair | 45/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | No auth required |
| Pricing | Not declared | Free |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 68 | 0 |
| Directory activity | 3 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | Not listed | Not listed |
| Full listing | View Aicanvas | View Extensiondev MCP |
Tools & capabilities
Aicanvas tools
No tool names declared yet. Check the project README from the listing page.
Extensiondev MCP tools
No tool names declared yet. Check the project README from the listing page.
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.
Aicanvas
{
"mcpServers": {
"aicanvas": {
"command": "npx",
"args": [
"-y",
"shadcn@latest"
]
}
}
}
Extensiondev MCP
{
"mcpServers": {
"mcp-291": {
"command": "npx",
"args": [
"@extension.dev/mcp"
]
}
}
}
Frequently asked questions
Aicanvas is categorized under Developer Tools and uses a local stdio subprocess. Extensiondev MCP belongs to Developer Tools and uses a local stdio subprocess. Pick Aicanvas for developer tools work and Extensiondev MCP for developer tools.
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.
Aicanvas has no declared pricing — check the project's own site. Extensiondev MCP is listed as free. Auth: no auth required. 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 aicanvas and mcp-291 as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Aicanvas has a quality signal of 49/100 (Fair) with 3 views, 0 installs and 68 GitHub stars. Extensiondev MCP has 45/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.