Alternatives to Modal Sandboxes

1. #1

   E2B

   FoundryLabs, Inc.

   PA Score 34/100vs Modal Sandboxes →
   coverage

   47.6/100

   Beats Modal Sandboxes on: Run coding agents like Claude Code or Codex inside the sandbox following the vendor's own recipe · Set timeouts so sandboxes shut down automatically and stop billing when idle or done

2. #2

   Daytona

   Daytona Platforms Inc.

   PA Score 33/100vs Modal Sandboxes →
   coverage

   41.7/100

   Beats Modal Sandboxes on: Connect an agent via an official MCP server · Download a machine-readable API spec (OpenAPI or equivalent)

3. #3

   Runloop

   Runloop

   PA Score 30/100vs Modal Sandboxes →
   coverage

   36.4/100

   Beats Modal Sandboxes on: Connect an agent via an official MCP server · Snapshot a sandbox and later restore or fork new sandboxes from that snapshot

4. #4

   Maritime

   Maritime

   PA Score 29/100vs Modal Sandboxes →
   coverage

   25.0/100

   Beats Modal Sandboxes on: Issue scoped/least-privilege API credentials for an agent · Schedule recurring jobs or workflows

5. #5

   Vercel Sandbox

   Vercel Inc.

   PA Score 25/100vs Modal Sandboxes →
   coverage

   34.4/100

   Beats Modal Sandboxes on: Download a machine-readable API spec (OpenAPI or equivalent) · Set timeouts so sandboxes shut down automatically and stop billing when idle or done

6. #6

   Blaxel

   Blaxel

   PA Score 21/100vs Modal Sandboxes →
   coverage

   23.2/100

   Beats Modal Sandboxes on: Connect an agent via an official MCP server · Expose a port from the sandbox on a public preview URL to reach services running inside

7. #7

   Cloudflare Sandboxes

   Cloudflare, Inc.

   PA Score 21/100vs Modal Sandboxes →
   coverage

   25.9/100

   Beats Modal Sandboxes on: Expose a port from the sandbox on a public preview URL to reach services running inside · Rely on a documented hard isolation boundary (microVM or equivalent) between sandboxes and my systems

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