open source · apache-2.0

Compute that boots before you blink.

MicroVM sandboxes, apps, Postgres and functions — live in 49 ms.

Start free →View docs → GitHub
$pip install pandastack
from pandastack import Sandbox

sb = Sandbox.create(template="code-interpreter")
out = sb.run("print('hello from a microVM')")
print(out.stdout)

sb.delete()

runs every agent

Claude CodeCodexDevinOpenHandsSWE-agentLangChainCrewAIAutoGen
Claude CodeCodexDevinOpenHandsSWE-agentLangChainCrewAIAutoGen
Claude CodeCodexDevinOpenHandsSWE-agentLangChainCrewAIAutoGen
Claude CodeCodexDevinOpenHandsSWE-agentLangChainCrewAIAutoGen
49 msp50 create✦
64 msp99 create✦
30–60 mssame-host fork✦
9.2 Gbpsguest network✦
16,384netns slots / host✦
2 MiBhugepage streaming✦
~34 spostgres 16, ready✦
per-secondmetered billing✦
Apache-2.0self-host anytime✦
49 msp50 create✦
64 msp99 create✦
30–60 mssame-host fork✦
9.2 Gbpsguest network✦
16,384netns slots / host✦
2 MiBhugepage streaming✦
~34 spostgres 16, ready✦
per-secondmetered billing✦
Apache-2.0self-host anytime✦
49 msp50 create✦
64 msp99 create✦
30–60 mssame-host fork✦
9.2 Gbpsguest network✦
16,384netns slots / host✦
2 MiBhugepage streaming✦
~34 spostgres 16, ready✦
per-secondmetered billing✦
Apache-2.0self-host anytime✦
49 msp50 create✦
64 msp99 create✦
30–60 mssame-host fork✦
9.2 Gbpsguest network✦
16,384netns slots / host✦
2 MiBhugepage streaming✦
~34 spostgres 16, ready✦
per-secondmetered billing✦
Apache-2.0self-host anytime✦
# One substrate

Not just a codebox. Four primitives.

Sandboxes

Kernel-isolated VMs. Created in 49 ms, forked into parallel universes.

git pushbuild · vmlive url

App hosting

git push → built in a VM → live behind a stable URL.

postgres://…db.pandastack.ai · ready in ~34 s

Postgres 16

A dedicated VM and durable volume per database. pgvector included.

*/5 * * * * → fn_3a90

Functions

Deploy whole directories. Invoke over HTTP or on a cron.

# Anatomy of a create

One snapshot restore. Eight steps.

No warm pool. Every create walks the same hot path — scroll to replay it.

49ms
0 msp50 · production49 ms
01allocate natid slot+1 ms
02patch tap in netns+2 ms
03reflink rootfs.ext4+1 ms
04fork + exec firecracker+7 ms
05load memory snapshot+23 ms
06resume vcpus+2 ms
07probe tcp/22+11 ms
08persist sandbox row+2 ms

source: agent/internal/sandbox/manager.go

# The blink test

How fast is 49 ms?

A full Linux kernel, restored faster than your eyelid.

PandaStack microVM
49 ms
Human blink
300 ms
Container cold start
1.8 s
Serverless cold start
2.5 s
Traditional VM
30.0 s
log scale · measured in production, june 2026
min45 ms
p5049 ms
p9059 ms
p9964 ms
# Templates

Pick a base. Ship in minutes.

Production-baked snapshots for every common agent stack. Or bring your own Dockerfile.

pandastack

Base

Ubuntu 24.04 + mise: Node 22, Python 3.12, Go, Bun. The apps runtime.

--template basedocs →
Popular

Code Interpreter

Python 3.11 + Node 22: pandas, numpy, jupyter, playwright, openai-agents.

--template code-interpreterdocs →
New

Coding Agent

claude-code + codex + opencode CLIs baked in. Pick one via API key.

--template agentdocs →
New

Claude Managed Agents

Run Anthropic's Claude Managed Agents — the ant worker executes tool calls in your microVMs.

--template claude-agentdocs →

Browser

Headless Chromium + Playwright + crawl4ai. Scrape, automate, extract.

--template browserdocs →

PostgreSQL 16

Managed Postgres 16 + pgvector + pgbouncer on a durable volume.

--template postgres-16docs →
BYOI

Custom build

Bring a Dockerfile or build script. We bake the snapshot.

--template custom
Browse all templates →
# Ephemeral by design

Spin up. Preview. Tear down.

Apps and managed Postgres aren't pets — they're built for the on-the-go, per-PR lifecycle. Open a pull request and PandaStack stands up a preview app and a throwaway database, hands you a live URL, scales to zero when idle, and tears the whole thing down on merge. No leftover infra, no idle bill.

# one PR, one disposable environment
  1. 01
    A PR openspush to a branch · or call the API
  2. 02
    App spins upbuilt in a fresh microVM, per-PR
  3. 03
    A throwaway Postgreson-the-go DB, scoped to this run
  4. 04
    Live preview URLisolated environment, real data
  5. 05
    Idle → scale-to-zerosnapshot + stop · stops billing
  6. 06
    Merge / closeapp + db torn down automatically
# why it works
On-the-go databases

Need a Postgres for one preview, one eval, or one agent run? Create it in seconds, connect over TLS, throw it away. Idle DBs scale to zero — the durable volume is preserved, the bill stops.

Per-PR preview apps

Every pull request gets its own isolated microVM and a stable URL. Reviewers click a link, not a runbook. It rebuilds on push and disappears on merge.

Nothing to clean up

Teardown is automatic on merge / close. Scale-to-zero handles the in-between. You never pay for an environment nobody is looking at.

spin up
seconds
idle
scale-to-0
teardown
automatic

Ship on the millisecond cloud.

Free tier with $5.40/mo usage credit. No card. Apache-2.0.

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