Sandboxes that persist forever, with 25ms resumes

Blaxel gives agents persistent computers that wait on standby when idle, resume in ~25ms to run AI code or share context.

The fastest sandbox in the world

Blaxel Sandboxes and their flagship 25ms resumes ensure that your agents get absolute autonomy and context persistence at instant speeds.

Fully stateful machines

Persist sandboxes forever across sessions, resuming them near-instantly even after months.

Auto-suspended when idle

Sandboxes automatically scale to zero after 15s inactivity, so you never pay for compute you don't use.

World-class 25ms resume times

Run AI code instantly with our industry-leading 25ms cold-starts from standby state.

Resume sessions exactly how you left them off

Blaxel makes full filesystem & memory snapshots so you don't need to restart processes on resume.

Achieve RAM-speed FS performance

Root filesystem runs in the memory to achieve the absolute best performances on read/writes.

Automate your cleanup

Set lifecycle policies to automatically delete sandboxes that will never be reused.

Give a computer to your agent

Blaxel Sandboxes are AI-native. They provide full Linux access — filesystem, libraries, shell and logs — delivered as a high-performance OS-as-a-service made for agents.

Tool-call native

A built-in MCP server is included in every sandbox for instant integration via remote tool calls.

Achieve event-driven automation

Get real-time events for any file/directory changes inside the sandbox.

Keep humans in the loop

Public or private preview URLs let you expose the content of a sandbox to end-users.

Absolute isolation between tenants

Unlike containers, microVMs ensure kernel-level isolation so LLMs cannot be prompted to escape the sandbox.

Speed up your codegen

Fast apply and code search models are available in the sandbox API to accelerate AI code generation.

Open-source core

Blaxel's sandbox API is fully open-source.

View on GitHub

Persist context and AI-generated code for years

Complement your agentic compute runtimes with storage solutions allowing you to retain context and data generated by your AI for a very long time.

Achieve guaranteed data retention for years

Block-storage based volumes let you retain data for years with a fully redundant solution.

Fork off from a filesystem snapshot every time

Create new volumes from volume templates to prepopulate them with data that you'll use every time.

Share context across workloads

Reuse the context persisted in a sandbox for other workloads.

Deeply customize the networking layer

Achieve total network sovereignty for your agents, from managed custom DNS & dedicated egress IPs, to private VPC interconnects.

Claim prime real-estate

Managed custom domains give your agents exposure on your own DNS through sandboxes preview URLs.

Secure your traffic with a fixed identity

Assign dedicated egress IP addresses that can route any protocol -- HTTP, PostgreSQL, TCP and beyond.

Interconnect with your own cloud

Connect to sandboxes from your network through VPC peering, or run them directly on servers in your own cloud.

Built for scale and security

Hardened security and elastic infrastructure designed to support your most demanding AI workloads while maintaining total control.

Discover our compliance portal

Enterprise-grade security & compliance

Built with security-first architecture and certified compliance standards to meet the most stringent enterprise requirements.

Region support

Choose deployment regions for local data residency. Europe and US regions available.

Zero data retention

Each sandbox runs in an individual microVM with the root filesystem in memory, so all data is wiped forever when the sandbox is destroyed.

Instantly scale to 50,000+ sandboxes

Scale up to 50,000+ sandboxes or agents, and up to 512 TB of volume storage with a tier-based quota system.

Built for AI use cases

AI builders use sandboxes to power their AI products, from agentic code execution to data wrangling.

Achieve near instant latency today.