Fly.io
Deploy hardware-virtualized containers globally. Run any Docker image, scale to zero automatically, and attach persistent storage. Ideal for sandboxed user code.
Fly Machines provide hardware-virtualized containers accessible via a REST API, allowing you to run any Docker image on a custom-built global cloud spanning 35 regions. Launch instances instantly and keep them running for short tasks or extended periods.
Key capabilities include:
- Dynamic request routing: Direct individual users or processes to their own dedicated sandbox environments using the Fly Proxy and
fly-replay. - Persistent storage: Equip each sandbox with dedicated storage through options like Fly Volumes, Fly Managed Postgres, or S3-compatible Tigris Data.
- Zero-cost when idle: Machines automatically scale to zero when inactive, ensuring you only pay for the compute resources you actively use.
- MCP with SSE: Build remote Model Context Protocol (MCP) servers and utilize Server-Sent Events (SSE) to integrate your sandboxes into LLM workflows.
Benefit from support provided by engineers who use the platform themselves, with options for emergency support and guaranteed response times available.
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