Agentic Index

boxd vs Fly.io Sprites (2026)

Both vendors last verified

Both give each agent a persistent Linux computer that sleeps when idle and wakes on the next request, and they draw the details differently. boxd machines keep memory and running processes through hibernation, fork with memory in under 200ms, run Claude Code, Codex and OpenCode out of the box, and add 128 integrations whose credentials stay outside the machine plus a live desktop where an agent drives a browser. That verdict is the Agentic Index coverage score, graded from each vendor's own published materials.

Fly.io Sprites pause about 30 seconds after activity stops, keep memory only through the first warm pause, checkpoint the filesystem in about a second, and reach more than 40 services through connectors that hold credentials at Fly.io's gateway, with a hosted MCP server to manage them. Sprites bill in dollars per hour awake, with $30 of trial credit and plans such as Hero at $100 a month, while boxd bills in euros with no plan and lets you choose Frankfurt or New York or self host. Choose boxd when forks with memory, a browser or a choice of region decide it, and Sprites when you want per user computers that idle for free, with checkpoints, connectors and an MCP server from Fly.io.

This comparison is published by Agentic Index, an independent agentic AI vendor research platform. boxd and Fly.io Sprites are each graded against the same 14 capability Agentic Index taxonomy, from the vendor's own public materials under the Agentic Index verification standard, alongside 1,140 researched vendors. No vendor pays for placement and no vendor has reviewed this page. How this evidence is graded

Choose boxd if

  • Forks should copy a running machine with its memory and processes, not only its files.
  • An agent should drive a real browser on the machine's desktop while a person can step in.
  • You need to choose where machines run, in Frankfurt or New York, or in your own cloud account.
  • You want to self host the same release free up to 16 vCPUs.
  • Automations should run on the machine on schedules and on integration events.

Choose Fly.io Sprites if

  • Idle machines should stop compute charges within about 30 seconds of the last activity.
  • Agents should checkpoint and restore their own filesystem from inside the machine, with the last five checkpoints mounted read only.
  • A hosted MCP server should let Claude or any MCP client create Sprites and run commands in them.
  • SDKs should cover Python, JavaScript, Go and Elixir.
  • Your organization already runs on Fly.io, with single sign on through Google or GitHub and SOC 2 Type II offered on its paid plans.
Feature
b
boxd
F
Fly.io Sprites
Action & orchestration

Integrations & Tool Calling

Ability to connect agents to real systems through native integrations, OAuth-authenticated actions, custom tools, APIs, webhooks, or MCP-compatible tools.

Workflow Orchestration

Ability to sequence, branch, retry, route, and combine deterministic workflow nodes with autonomous agent steps.

Triggers & Channel Coverage

How agents wake up and where they work: schedules, webhooks, message events, CRM events, inbox events, chat, email, voice, and collaboration tools.

Knowledge & context

Knowledge Grounding & RAG

Ability to ground agent behavior in company data through document ingestion, retrieval, external knowledge APIs, semantic search, or RAG layers.

Memory & State Persistence

Ability to persist context across a run, conversation, workflow, user, team, or longer-term memory layer.

Control & trust

Human Oversight & Guardrails

Approval steps, consent checkpoints, escalation rules, structured guardrails, policy constraints, and pause/resume controls.

Security, Identity & Governance

RBAC, SSO, auditability, encryption, least-privilege tool access, compliance posture, and data handling policy.

Observability & Auditability

Traces, logs, execution histories, metrics, audit events, and debugging detail for production agent behavior.

Deployment & Data Residency

Deployment modes and options, including SaaS, dedicated cloud, VPC, on-prem, hybrid, local runtime, and self-hosting.

Solution readiness

Prebuilt Agents, Templates & Packs

Ready-made workflows, packaged employees, templates, blueprints, industry solutions, and role-specific agents that reduce time-to-value.

Platform extensibility

Model Flexibility & Routing

Ability to work across multiple foundation models, route tasks to different models, or let buyers bring their own providers and keys.

APIs, SDKs & MCP Extensibility

Composability layer: stable APIs, SDKs, MCP tool consumption/serving, custom tools, and integration into internal systems.

Testing, Debugging & Optimization

Testing, debugging, scoring, retries, fallbacks, quality gates, and optimization loops for improving agent workflows before and after deployment.

Specialist automation

Browser & Computer Use

Browser, desktop, or remote/local computer control for workflows that cannot be handled through stable APIs alone.

Pricing snapshot

Sourced from the Index pricing dataset · open each vendor's profile for full detail.

Pricing
b
boxd
F
Fly.io Sprites

Entry price

Lowest public entry point

Pay as you go with €30 of free credit, at €0.039 per active vCPU hour and €0.012 per GiB hour of memory in use. Pay as you go at $0.0385 per CPU hour and $0.021875 per GB of memory an hour while a Sprite is awake, with $30 in trial credits for new users.

Pricing confidence

How public the numbers are

Public, exact Public, exact

Billing

Primary billing axis

Per second active vCPU, memory in use and disk written CPU hours and GB of memory hours while awake, plus hot storage while awake and cold storage until deleted

Variable cost

Workload / overage exposure

High variable cost High variable cost

Free tier / trial

Try before you buy

Free tier
No free tierTrial

Buying motion

Self-serve vs sales call

Mixed Self-serve

Pricing verified

When this pricing was last checked

Sprites are a product of Fly.io, which offers SOC 2 Type II and a HIPAA package on its paid plans without saying whether they extend to Sprites. boxd's SOC 2 Type II and ISO 27001 certifications are still in progress, and boxd gives conflicting accounts of its US region. boxd prices in euros.

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