Cloud compute for autonomous agents
Most clouds assume a person: an email to verify, a card on file, a console to click through and a quota form to fill in. An autonomous agent needs the same machines through a path it can walk on its own. rent.dev is built for that path. An agent creates an account with one API call or through the MCP server, gets a key back, and runs sandboxes billed per second from a prepaid balance. It can fund that balance in USDC over x402, or hand a person a pay link to pay by card.
rent.dev: one API for the sandboxes and GPU pods an agent needs.
What an agent's tasks cost
| Sandbox | Billed by | Agent loop, 30 min | Interactive, 30 min | Workspace, 4 h | Rate read |
|---|---|---|---|---|---|
| rent.dev | rent.dev | $0.0452 | $0.0828 | $0.4640 | |
| Northflank cloud | Northflank | $0.0346 | $0.0346 | $0.2765 | 2026-11-11 |
| Cloudflare containers | Cloudflare | $0.0452 | $0.0740 | $0.4193 | 2026-11-11 |
| Fly.io sprites | Fly.io | $0.0508 | $0.0662 | $0.4374 | 2026-11-11 |
| Vercel sandbox | Vercel | $0.0552 | $0.1064 | $0.5440 | 2026-11-11 |
| Modal sandbox | Modal | $0.0569 | $0.0835 | $0.4977 | 2026-11-11 |
| Daytona sandbox | Daytona | $0.0828 | $0.0828 | $0.6624 | 2026-11-11 |
| E2B sandbox | E2B | $0.0828 | $0.0828 | $0.6624 | 2026-11-11 |
Questions
- What are the cloud compute options for autonomous agents?
- Three kinds fit most work. Sandboxes run code and tools, start by API and end at a timeout. GPU pods serve inference and training. Long-lived virtual machines host services. Whichever kind, the agent should reach it by API or MCP without a console, pay little for short tasks, and be held back by a timeout or a spending limit, so a confused loop cannot run up costs. A prepaid balance is that limit on rent.dev. On rent.dev's price board, generated 2026-11-14, its longest task, a 4 h workspace task on 2 vCPU and 4 GiB, costs $0.4640 from a rent.dev prepaid balance.
- Which cloud compute providers bill per second?
- Per-second metering is normal now for virtual machines at the large clouds and for most sandbox and GPU platforms, but the minimum charge and the increment differ by product. For an agent whose tasks last seconds or minutes, the minimum per start matters more than the rate. rent.dev's own sandboxes are metered by the second, with no rounding up to the hour, from the account's prepaid balance.
- Can developers use prepaid cloud compute without a card?
- On rent.dev, yes. The balance can be funded in USDC over the x402 payment protocol, which an agent can sign and send itself, and an x402 payment sent with no API key creates an account for the paying wallet. A person can also pay by card through a pay link. Most clouds ask for a card or an invoicing agreement before the first machine runs.
- Can an agent pay for cloud compute with crypto?
- rent.dev accepts USDC over x402, a payment flow built on HTTP: the route answers 402 with the amount, the agent signs a payment and sends the request again, and the credit lands once the transfer is confirmed on-chain. The balance then pays for rent.dev's own sandboxes. GPU pods are billed by the GPU provider to your own key there, not to the balance.