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E2B Sandboxed Python Code Execution
x402
E2B Sandboxed Python Code Execution is a paid API for AI agents from signal-engine-production-d88d.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-16).
Executes arbitrary Python code in a secure E2B sandbox and returns stdout, stderr, and error output
Price / call$0.005
Success—
StatusUnknown
How this service works
Sandboxed Python code execution via E2B
Output
A JSON object containing an `error` field (null if successful), a `stdout` array of strings representing each line of standard output, and a `stderr` array of strings for any error output from the script.
Example use cases
Dynamic data calculation in an agent pipeline
“I need you to run this Python code to calculate compound interest for me: `principal = 1000; rate = 0.05; years = 10; print(principal * (1 + rate) ** years)`”
Validating generated code before deployment
“Can you execute this Python function I wrote to verify it produces the right output before I use it? Here's the snippet: `def fib(n): return n if n <= 1 else fib(n-1)+fib(n-2); print(fib(10))`”
Ad-hoc data transformation during analysis
“Run this Python code in a safe sandbox to parse and summarize my CSV data: `import csv, io; data='name,age\nAlice,30\nBob,25'; reader=csv.DictReader(io.StringIO(data)); [print(r) for r in reader]`”
Technical details
Endpoint
POSThttps://signal-engine-production-d88d.up.railway.app/v1/gateway/execute/e2bWhen to prefer
Choose this endpoint when you need to execute dynamic Python code safely in an isolated environment without setting up local infrastructure — ideal for AI agents that generate or validate code, perform numeric computations, transform data programmatically, or run user-submitted scripts securely. Prefer this over local execution when sandboxing and reproducibility matter.
Side effects
- Syntax error in submitted Python code returns a non-null error field with the exception message
- Runtime exceptions (e.g. ZeroDivisionError, ImportError) surface in stderr or error field
- Execution timeout if script runs too long
- Unavailable third-party libraries not pre-installed in the sandbox environment
- Network errors or sandbox provisioning failures returning HTTP 5xx
Input
Schema · Request body
{
"output": {
"required": [
"stdout",
"stderr"
],
"properties": {
"error": {
"type": "string",
"nullable": true
},
"stderr": {
"type": "array",
"items": {
"type": "string"
}
},
"stdout": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
}Output
Schema · Response
{
"type": "json",
"example": {
"error": null,
"stderr": [],
"stdout": [
"4\n"
]
}
}Tags
x402
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