agent-exec Storage Object Renewal

x402

agent-exec Storage Object Renewal is a paid API for AI agents from agent-exec.448c.net, paid per call via x402, $0.0051/call, status unknown (last checked 2026-10-10).

Renews the retention window of a stored object in agent-exec's sandboxed storage by paying per-use via HTTP 402, extending its expiry without losing remaining time.

Price / call$0.0051

Seller volume →—

Success—

StatusUnknown

How this service works

Accountless, pay-per-use code execution for software agents: submit source code, get stdout, stderr and exit code back from an isolated, network-less sandbox. No account, no API key -- possession of valid payment is sufficient.

Output

Returns the object's ID, the chosen plan, the new expiry timestamp (Unix ms), the previous expiry timestamp (Unix ms), and payment details including the payer wallet address, amount charged in atomic USDC units, network, and settlement transaction hash.

Example use cases

Prevent expiry of execution artifact

“The code execution result I stored earlier in agent-exec is about to expire — renew it with the large plan so I have more time to review the output.”

Cheap early renewal to avoid data loss

“I want to top up the retention on my agent-exec storage object xyz789 before it runs out — use the small plan and pay the USDC fee now.”

Agent pipeline keeps intermediate result alive

“My pipeline saved intermediate data to agent-exec storage under ID def456 and we need it for another few hours — renew it on the medium plan right away.”

Technical details

Endpoint

POSThttps://agent-exec.448c.net/storage/%7Bid%7D/renew?utm_source=zero.xyz

When to prefer

Use this endpoint when you have an existing stored object on agent-exec that is approaching expiration and you want to extend its retention window without forfeiting any remaining time. Prefer this over re-uploading or re-executing when the object already exists and you simply need more time. It is ideal for agent pipelines that produce intermediate results and need to keep them alive across multiple steps without maintaining an account or API key.

Side effects

Object ID not found or already freed — 404 response
Payment insufficient or rejected — 402 response with exact required amount quoted
Invalid or misspelled plan name — server selects smallest plan that fits the object
Object already expired before renewal — cannot renew a freed object
Network or on-chain settlement failure — payment not confirmed, renewal not applied

Input

Schema · Request body

Field	Type	Description
plan	string	Optional. Which plan to buy. Its retention window is ADDED to whatever the object has left, never substituted for it, so renewing early forfeits nothing. Omitted, misspelled or too small for the object, you get the smallest plan that holds the object, and the 402 quotes exactly that.

Output

Schema · Response

Field	Type	Description
idrequired	string
planrequired	string
paymentrequired	object
expiresAtrequired	integer	Unix ms the object is free again, after this renewal.
previousExpiresAtrequired	integer	Unix ms the object would have expired before this renewal.

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