Run code in an isolated cloud sandbox and get its output — agents can't self-hos
Run code in an isolated cloud sandbox and get its output — agents can't self-host this. POST {code, language?}. language: python (default), javascript, bash, r, java. Returns stdout, stderr, results, error. Hard-capped: 25s wall-clock, 100KB code, 64KB output, fully isolated.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
955 msmedian answer time
$0.018listed price per call
$0.018price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://x402.shizu.me/sandbox
| Category | Code and developer |
|---|---|
| Provider host | x402.shizu.me |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.018 | 955 ms |
Example input (from the provider)
{
"body": {
"code": "print(6*7)",
"language": "python"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"body": {
"properties": {
"code": {},
"language": {}
},
"required": [
"code",
"language"
],
"type": "object"
},
"method": {
"const": "POST"
}
},
"required": [
"method"
],
"type": "object"
}
}
}