id: ext.e2b
title: E2B cloud sandboxes
description: >
  Metered E2B Firecracker sandbox adapter. Requires E2B_API_KEY or OpenBao
  secret_ref mapping at provision boundary.
handler: sandboxer.extensions.e2b:E2BExtension
capabilities:
  isolation_levels: [microvm]
  regions: [us, eu]
  persistence: true
  pricing_model: metered
config:
  provider: e2b
  api_base: https://api.e2b.dev
  api_key_env: E2B_API_KEY
  secret_ref: e2b-api-key
  template_id: base
  rate_usd_per_hour: 0.15
  session_fee_usd: 0.02