modal

# Modal Sandboxes Disposable remote containers (with optional GPU) via Modal, paid per call in USDC. No Modal account, no GPU procurement. **Base only in wallet mode; fine on an API key.** `sol.blockrun.ai` carries the `/v1/modal/*` routes but has no Modal backend configured, so every action — create, exec, status, terminate — answers `503`. That reads as "the sandbox service is down" rather than "wrong chain", which is exactly the wrong conclusion to act on: retrying will not help. The tool checks the active chain first and says so. Switch with `blockrun_wallet action:"chain" chain:"base"`. Prices below are Base prices and include its per-transaction fee. ## READ THIS BEFORE SETTING `timeout` **`timeout` is the BILLED lifetime, charged upfront in full, and never refunded — not an idle timeout.** Above 300s the price switches from a flat rate to **per-hour billing for the entire duration you ask for**, whether you use it or not. Terminating early refunds nothing. That makes `timeout` the single most expensive field in this MCP: | what you ask for | what you pay | |---|---| | `{ timeout: 300 }` | **$0.0110** | | `{ timeout: 300, gpu: "A100" }` | **$0.2010** | | `{ timeout: 600, gpu: "A100" }` | **$0.6677** | | `{ timeout: 86400, gpu: "H100" }` | **$192.0010** | All four are live-verified quotes. A 24h H100 sandbox costs **$192 upfront, non-refundable**, even if your job finishes in a minute. **So: ask for the time you need, not a safe-looking ceiling.** Need 20 minutes...