ScratchRun

dev.scratchrun/mcpv0.1.1Other

Ephemeral MicroVM-isolated code execution for AI agents. Fresh VM per call, hard-purged after.

In-path gate · all MCP tools

Using ScratchRun in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

NOT YET SCREENEDno verdict on file

Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-08-04).

Contracts can change after screening, with no version bump. The gate pins ScratchRun’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Environment variables

SCRATCHRUN_API_KEY

requiredsecret

ScratchRun API key — get one at https://scratchrun.dev

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

Alternatives in Other

ConnectMachine

ai.connectmachine/connectmachine

Manage your ConnectMachine contacts, networks, events, and digital business cards.

Yarr MCP

ai.dinglebear/yarr-mcp

Rust MCP and CLI server for Sonarr, Radarr, Prowlarr, Plex, Jellyfin, and download clients.

seekrit — secrets for agents

dev.seekrit/remote-mcp

Encrypted store for API keys and database URLs your code needs. Use them without reading them.

Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "@scratchrun/mcp-server"
      ],
      "env": {
        "SCRATCHRUN_API_KEY": "<your-scratchrun_api_key>"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "@scratchrun/mcp-server"
      ],
      "env": {
        "SCRATCHRUN_API_KEY": "<your-scratchrun_api_key>"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y -- @scratchrun/mcp-server

Claude Code (claude mcp add)

claude mcp add --scope user mcp -- npx -y -- @scratchrun/mcp-server

Gemini CLI (gemini mcp add)

gemini mcp add -s user mcp npx -y -- @scratchrun/mcp-server

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/dev-scratchrun-mcp

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v0.1.1
category: Other
quality: 85 / 100
operator: ar-blues

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 960,824). Verify it yourself.

Links

Repository →