Parselbox vs ScratchRun
A side-by-side look at the Parselbox and ScratchRun MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Parselbox for code execution work as a local process; choose ScratchRun 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 Parselbox when
- You need dedicated capabilities in the Code Execution domain.
- You prefer a local stdio subprocess transport.
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.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Code Execution | Code Execution |
| Quality signal | 41/100 · 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 | None listed | SCRATCHRUN_API_KEY |
| Verified owner | Community listing |
Tools & capabilities
Parselbox tools
No tool names declared yet. Check the project README from the listing page.
ScratchRun 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.
Parselbox
{
"mcpServers": {
"parselbox": {
"command": "uvx",
"args": [
"parselbox"
]
}
}
}
ScratchRun
{
"mcpServers": {
"scratchrun": {
"command": "npx",
"args": [
"-y",
"@scratchrun/mcp-server"
],
"env": {
"SCRATCHRUN_API_KEY": "YOUR_SCRATCHRUN_API_KEY_HERE"
}
}
}
}
Frequently asked questions
Parselbox is categorized under Code Execution and uses a local stdio subprocess. ScratchRun belongs to Code Execution and uses a local stdio subprocess. Pick Parselbox for code execution work and ScratchRun 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.
Parselbox has no declared pricing — check the project's own site. ScratchRun 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 parselbox and scratchrun as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Parselbox has a quality signal of 41/100 (Fair) with 0 views, 0 installs and 3 GitHub stars. ScratchRun has 40/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.