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What is Sprites?

Sprites by Fly.io is a platform for creating stateful sandbox environments that run arbitrary code inside hardware-isolated Linux computers. A Sprite is designed to answer the question of where to safely run a blob of code, whether that code comes from an AI agent, a developer workflow, a user-uploaded binary, or an application process. Unlike short-lived stateless sandboxes, Sprites are persistent environments that can keep files, state, and execution context across runs. The platform supports checkpoint and restore so workloads can pause, resume, and recover without rebuilding everything from scratch. Sprites use a fast directly attached NVMe filesystem for active work and continuously sync that filesystem to durable external object storage. This storage model gives developers a normal Linux disk experience while supporting durable persistence and automatic growth. Developers can install the Sprites CLI, log in, create a Sprite, run commands, and connect directly to a Sprite console. The platform also provides a REST API and language support for JavaScript, Go, Elixir, and Python. Sprites include capabilities around persistence, checkpoints, Sprite URLs, sandbox VMs, and network policy for controlling how environments run and connect. Pricing is based on actual usage across CPU hours, memory hours, hot storage, and cold storage, making it practical for bursty workloads like coding agents or lightweight web apps. By combining hardware isolation, Linux compatibility, stateful persistence, checkpointing, durable storage, APIs, and usage-based billing, Sprites gives developers a flexible execution layer for AI agents, sandboxed code, and persistent application environments.

What is NullClaw?

NullClaw represents an incredibly efficient and ultra-lightweight AI assistant framework developed in Zig, provided as a single static binary that ensures it can run smoothly on almost any hardware platform. The framework is designed to achieve outstanding performance with minimal resource usage, reflected in its small size of about 678 KB and average RAM consumption of around 1 MB, with boot times clocking in at under two milliseconds. By avoiding the conventional runtime overhead tied to virtual machines, interpreters, and intricate dependency chains, NullClaw empowers developers to deploy their agents simply by running the compiled binary. Despite its small footprint, it features a robust autonomous agent architecture that supports over 22 model providers, 18 communication channels, hybrid vector and FTS5 memory, in addition to functionalities for streaming, voice interaction, and multi-layer sandboxing. Furthermore, the framework incorporates essential security features, such as workspace scoping, explicit command allowlists, encrypted secrets, and effective sandbox isolation utilizing tools like Landlock, Firejail, or Docker. This thoughtful design guarantees that users can rely on the integrity and effectiveness of their autonomous agents, all while enhancing efficiency across a wide range of applications. Overall, NullClaw not only streamlines deployment but also prioritizes security, making it a compelling choice for developers seeking versatility in their AI solutions.

Media

Media

Integrations Supported

Docker
Firejail
Go
JavaScript
Model Context Protocol (MCP)
OpenAI
Virtua.Cloud
Zig

Integrations Supported

Docker
Firejail
Go
JavaScript
Model Context Protocol (MCP)
OpenAI
Virtua.Cloud
Zig

API Availability

Has API

API Availability

Has API

Pricing Information

$30 per month
Free Version
Free Trial Offered?

Pricing Information

Free
Free Version
Free Trial Offered?

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Fly.io

Company Location

United States

Company Website

fly.io/sprites

Company Facts

Organization Name

NullClaw

Company Location

United States

Company Website

github.com/nullclaw/nullclaw

Categories and Features

Categories and Features

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