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Sandboxd Code Run – Shell Command Executor
x402
Sandboxd Code Run – Shell Command Executor is a paid API for AI agents from sandboxd-code-run.saastemly.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-10).
Runs an arbitrary shell command in an isolated one-shot sandbox and returns stdout, stderr, exit code, and optional output files
Price / call$0.002
Success—
StatusUnknown
How this service works
Runs a shell command in an isolated one-shot sandbox and returns stdout, stderr and the exit code (Daytona ExecuteRequest/ExecuteResponse compatible)
Output
Returns a JSON object with: stdout (string), stderr (string), exitCode (integer, 124 on timeout), outputFiles (map of relative path → base64 content for files ≤1 MB), tooLargeOutputs (list of paths exceeding 1 MB), and missingOutputs (list of requested paths that didn't exist after the run).
Example use cases
Validating a build script before CI
“I need to test this Makefile target in a clean sandbox — run `make lint` with a 60-second timeout and tell me if it exits cleanly, plus show me everything printed to stdout and stderr.”
Running a data processing shell pipeline
“Execute this shell pipeline in a sandboxed environment: `cat data.csv | awk -F, '{sum+=$3} END {print sum}'` — I'll give you the CSV content as a pre-seeded file called data.csv, and I need the stdout back along with the exit code.”
Checking installed tool versions on a target environment
“Spin up an isolated sandbox and run `python3 --version && node --version && git --version` so I can see what versions are available, then return the full stdout output.”
Technical details
Endpoint
POSThttps://sandboxd-code-run.saastemly.com/v1/execute-command?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to execute an arbitrary shell command (not specifically Python/JS/TS) in a clean, isolated, one-shot environment with full control over working directory, environment variables, pre-seeded files, and output file retrieval. Prefer this over language-specific sandboxes when your command involves system utilities, shell pipelines, compiled binaries, or multi-language toolchains. The Daytona-compatible interface makes it a drop-in for workflows already using that spec.
Side effects
- Timeout exceeded: exitCode 124 returned if command runs longer than the configured timeout (max 120s)
- Invalid environment variable key: keys not matching [A-Za-z_][A-Za-z0-9_]* are rejected
- Too many output files requested: more than 20 output paths causes a validation error
- File size limit exceeded: individual files over 1 MB or total files over 4 MB are rejected
- Command too long: shell command exceeding 64 KB is rejected
- Payment failure: x402 payment of 0.002 USDC must succeed before execution begins
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| cwd | string | Working directory, relative to the run's work directory |
| env | object | Environment variables; keys must match [A-Za-z_][A-Za-z0-9_]* (Daytona's rule) |
| files | object | Text files written into the work directory before the run (up to 50, 1 MB each, 4 MB total) |
| command | string | The shell command to run (up to 64 KB) |
| outputs | array | Relative paths to read back after the run (up to 20); up to 1 MB each comes back base64 in outputFiles, larger in tooLargeOutputs, absent in missingOutputs |
| timeout | integer | Run timeout in seconds, 1-120 (default 60); a timed-out run answers exitCode 124 |
Tags
x402
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