How does billing work?

You top up a prepaid balance and each sandbox spends it down per minute while it runs. There is no subscription, plan fee or minimum, and new accounts get a $5 starter credit. If the balance runs out, sandboxes go to sleep until you top up again.

Can I use my own model keys?

Yes, and that spend never touches your balance. If you use the platform gateway, models, search and integrations are metered from the same balance with a spend cap you set per sandbox.

How long can one agent run?

As long as you keep it. Nothing times out mid-task, and what an agent writes to disk is still there on the next call, even weeks later.

What is Agent 37's monthly traffic and growth trend?

Agent 37 currently receives 144.91K monthly visits, with a month-over-month traffic change of +75.56K (+108.9% growth rate). Its primary source market is Paraguay (58% share), including 57.52K direct visits/mo and 0 organic search visits/mo.

Is Agent 37 free? What is its pricing model?

Agent 37 operates on a Free Trial, Contact for Pricing pricing model. Prepaid balance with usage-based, per-minute metering: compute is billed while the sandbox runs and disk is billed while it exists. There is no subscription, plan fee or minimum, and new accounts get a $5 starter credit. Custom, white-label and startup credit programs require contacting the team. Supported billing and checkout platforms include: not listed.

Agent 37 Review: Low-Cost Cloud Sandboxes for AI Agents

OpenAITools

Top 12 Agent 37 Alternatives & Competitors

Side-by-side telemetry comparison of competing AI tools in the same primary category

View All Agent 37 Alternatives →Explore all Large Language Models (LLMs) tools →

Rank	AI Tool	Monthly Visits	MoM Growth	Stickiness	Pricing	Head-to-Head
●	Agent 37	144.91K	+108.9%	40% Direct	Free Trial, Contact for Pricing	Current
1	ChatGPT	5.92B	+5%	74% Direct	Freemium	vs ChatGPT
2	Google Gemini	2.64B	+0.9%	62% Direct	Freemium	vs Google Gemini
3	DeepSeek	357.4M	+1%	78% Direct	Freemium	vs DeepSeek
4	OpenAI Platform	259.46M	+27%	43% Direct	Paid	vs OpenAI Platform
5	Gemini 4 Carbon (Gemini Carbon 4)	110.43M	+20.1%	53% Direct	Freemium	vs Gemini 4 Carbon (Gemini Carbon 4)
6	Google AI Studio	110.43M	-2.3%	54% Direct	Freemium	vs Google AI Studio

Agent 37

Why Choose Agent 37

Watchouts & Trade-offs

Traffic Acquisition Breakdown

About Agent 37

Frequently Asked Questions about Agent 37

Top 12 Agent 37 Alternatives & Competitors