Execute code in any supported language
Execute code in any supported language. 5s CPU timeout, 128MB RAM. Supports 40+ languages including Python, JavaScript, C, C++, Java, Go, Rust.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
948 msmedian answer time
$0.002listed price per call
$0.002price 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://execbox.xyz/execute
| Category | Code and developer |
|---|---|
| Provider host | execbox.xyz |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.002 | 948 ms |
Example input (from the provider)
{
"body": {
"language_id": 71,
"source_code": "print(\"hello\")",
"stdin": ""
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"command_line_arguments": {
"description": "Arguments passed to the compiled binary at runtime (e.g. \"--input file.txt\"). Leave empty or omit for most use cases. Do NOT put natural language here.",
"type": "string"
},
"compiler_options": {
"description": "Compiler flags passed to the compiler (e.g. \"-O2 -Wall\", \"-std=c17\"). Must start with \"-\". Leave empty or omit if unsure. Do NOT put natural language here.",
"type": "string"
},
"language_id": {
"description": "Judge0 language ID. GET /languages for valid IDs (e.g. 71=Python 3, 63=JavaScript, 50=C, 62=Java)",
"type": "number"
},
"source_code": {
"description": "Source code to execute (max 100,000 characters). Network access is disabled \u2014 code that opens sockets or makes HTTP requests will fail.",
"type": "string"
},
"stdin": {
"description": "Standard input passed to the program (optional)",
"type": "string"
}
},
"required": [
"language_id",
"source_code"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"exit_code": {
"description": "Process exit code (null if killed)",
"type": "number"
},
"language": {
"properties": {
"id": {
"type": "number"
},
"name": {
"type": "string"
}
},
"type": "object"
},
"memory": {
"description": "Peak memory usage in kilobytes (KB). Tier limits in /pricing are expressed in MB \u2014 multiply by 1024 to compare.",
"type": "number"
},
"status": {
"properties": {
"description": {
"type": "string"
},
"id": {
"description": "3=Accepted, 4=Wrong Answer, 5=Time Limit Exceeded, 6=Compilation Error, 7=Runtime Error (SIGSEGV), 8=Runtime Error (SIGXFSZ), 9=Runtime Error (SIGFPE), 10=Runtime Error (SIGABRT), 11=Runtime Error (NZEC), 12=Runtime Error (Other). Codes 1-2 (queued/processing) never appear in responses; codes 13-14 (infra errors) return HTTP 502 instead.",
"type": "number"
}
},
"type": "object"
},
"stderr": {
"description": "Program standard error (null if none). Truncated at 4096 KB by the execution backend.",
"type": "string"
},
"stdout": {
"description": "Program standard output (null if none). Truncated at 4096 KB by the execution backend.",
"type": "string"
},
"time": {
"description": "Execution wall time in seconds, returned as a decimal string (e.g. \"0.023\")",
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}