Vellium & Co

Directory › Payments and on-ramps › Code execution

Code execution

Execute Python or JavaScript code in a secure, isolated cloud sandbox. Returns stdout, stderr, and the expression result. No setup needed; pay per call via x402. 30s timeout, 10k char code limit. A run that hits the time limit is returned w

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
184 ms
Price
$0.020 per call
Paying buyers, last 30 days
3 (directory's own records)
Paid calls, last 30 days
3
Category
Payments and on-ramps
Address
https://agent402.tools/api/code-run

Accuracy: paid answers checked against an independent record

Not yet in our paid checks. A seller we have not checked has neither passed nor failed.

For agents

This page as JSON: /sellers/71f9d35809a7.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].