ScratchRun vs Tenki Sandbox MCP
A side-by-side look at the ScratchRun and Tenki Sandbox MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose ScratchRun for code execution work as a local process; choose Tenki Sandbox MCP for code execution as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose ScratchRun when
- You need dedicated capabilities in the Code Execution domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
SCRATCHRUN_API_KEY.
Choose Tenki Sandbox MCP when
- You need dedicated capabilities in the Code Execution domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
TENKI_API_KEY, TENKI_AUTH_TOKEN.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Code Execution | Code Execution |
| Quality signal | 40/100 · Fair | 40/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | SCRATCHRUN_API_KEY | TENKI_API_KEY |
Tools & capabilities
ScratchRun tools
No tool names declared yet. Check the project README from the listing page.
Tenki Sandbox 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.
ScratchRun
{
"mcpServers": {
"scratchrun": {
"command": "npx",
"args": [
"-y",
"@scratchrun/mcp-server"
],
"env": {
"SCRATCHRUN_API_KEY": "YOUR_SCRATCHRUN_API_KEY_HERE"
}
}
}
}
Tenki Sandbox MCP
{
"mcpServers": {
"tenki-sandbox-mcp": {
"command": "npx",
"args": [
"-y",
"@tenkicloud/mcp"
],
"env": {
"TENKI_API_KEY": "YOUR_TENKI_API_KEY_HERE",
"TENKI_AUTH_TOKEN": "YOUR_TENKI_AUTH_TOKEN_HERE"
}
}
}
}
Frequently asked questions
ScratchRun is categorized under Code Execution and uses a local stdio subprocess. Tenki Sandbox MCP belongs to Code Execution and uses a local stdio subprocess. Pick ScratchRun for code execution work and Tenki Sandbox MCP for code execution.
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.
ScratchRun has no declared pricing — check the project's own site. Tenki Sandbox MCP 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 scratchrun and tenki-sandbox-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, ScratchRun has a quality signal of 40/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. Tenki Sandbox MCP has 40/100 (Fair) with 2 views, 0 installs and 0 GitHub stars.