Ephemeral MicroVM-isolated code execution for AI agents. Fresh VM per call, hard-purged after.
Connect Runs on your machine
claude mcp add mcp -e SCRATCHRUN_API_KEY=<SCRATCHRUN_API_KEY> -- npx -y @scratchrun/[email protected]
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@scratchrun/[email protected]"
],
"env": {
"SCRATCHRUN_API_KEY": "<SCRATCHRUN_API_KEY>"
}
}
}
}
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@scratchrun/[email protected]"
],
"env": {
"SCRATCHRUN_API_KEY": "<SCRATCHRUN_API_KEY>"
}
}
}
}
{
"servers": {
"mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@scratchrun/[email protected]"
],
"env": {
"SCRATCHRUN_API_KEY": "<SCRATCHRUN_API_KEY>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
SCRATCHRUN_API_KEYRequired, secret | ScratchRun API key — get one at https://scratchrun.dev |
Details
| Package | @scratchrun/[email protected] (NPM, stdio) |
| First published | 4 Aug 2026 |
| Last updated | 4 Aug 2026 |
| Registry name | dev.scratchrun/mcp |
More developer tools servers See all
Listing data from the official MCP registry. Status and tools from NestDaddy's daily check. Browse all MCP servers.
