Long-running AI sandboxes.
Sandboxes that run real services, survive reconnects, and keep secrets safe.
from islo import Islo
client = Islo()
sb = client.sandboxes.create_sandbox(name="agent-1", image="ubuntu:22.04")
result = client.sandboxes.exec_in_sandbox(
sandbox_name=sb.name, command=["python", "train.py"],
)
print(result.exit_code)13:46sandbox · running stack
swift-lantern · servicesreal Linux VM. not docker-in-docker. all on localhost.
postgres:5432
up·4h 11m
redis:6379
up·4h 11m
api (fastapi):8000
up·4h 10m
worker
up·4h 10m
web (next):3000
up·4h 08m
stripe-mock:12111
up·4h 11m
18:20session · resumed
~ · you@laptopwoken · 1.2s
$ islo use swift-lantern ✓ sandbox resumed · 4h 12m uptime · disk warm ✓ services restored · postgres redis api worker web stripe-mock ✓ vault re-bound · no keys written · audit chain continues working dir ~/work/billing (git: eng-2043-stripe-v2, 2 unstaged) open files lib/stripe_auth.py · routes/charge.py · PLAN.md agent state step 8 of 8 · paused on human approval last action drafted PR #4821 (14:03) waiting on merge call for stripe_v2_enabled agent › Welcome back. Ready when you are.
Same filesystem. Same history. Same context.
13:58vault · egress
agent
stripe.charges.retrieve(...)$STRIPE_SECRET_KEY · placeholder only
islo vault
Authorization: Bearer $STRIPE_SECRET_KEY→Authorization: Bearer sk_live_••••••••••••4f2a
injected at egress · per-request audit
stripe api
200 OK · charge_XYZkey never touched sandbox memory
bindingegresslast used
STRIPE_SECRET_KEYapi.stripe.com4h 11m ago
DATABASE_URLpg.swift-lanternlive
GITHUB_TOKEN (scoped)api.github.com2m ago
SLACK_BOT_TOKENslack.com/apipending
DATADOG_API_KEYapi.datadoghq.com1h 03m ago
pricingprovisioned · per hour
CPU time
$0.07/CPU-hour
billed on provisioned cores while the env is running
memory time
$0.04/GB-hour
request 2 GB, pay for 2 GB while it runs
storage time
$0.0007/GB-hour
billed on provisioned disk
overnight agent session (8 hours)
CPU · 2 cores × 8h$1.12
Memory · 4 GB × 8h$1.28
Storage · 10 GB × 8h$0.06
Total$2.46
monthly team (5 devs, ~4h/day)
CPU · 800 CPU-hours$56.00
Memory · 1,600 GB-hours$64.00
Storage · 8,000 GB-hours$5.60
Total~$126/mo
$50 in free credits on signup · no card required