MIT-licensed runtime of single-request serverless actors, each with its own SQLite database and WebSocket server, written in TypeScript on a Rust runtime; run on Terse Cloud or self-hosted. Billed by the second for CPU and memory requested.
Agent 37
New· 4Cloud sandboxes for AI agents, billed by the minute at low unit rates, for running code, agent harnesses, browsers and desktops, with a separate sandbox for each customer of the product built on it.
- Artificial Intelligence - AI
- DevOps
- Docker
TrustList summary
Not yet independently verified. Dated from the Y Combinator launch post of 11 November 2026, as the site gives no launch date. The cost comparisons and benchmark ranks are the maker's own, and the pages name no city or country. We will update this when it can be confirmed, and remove this note.
Agent 37 rents out the isolated computers that AI agents need to run code, browse and use a desktop, and competes almost entirely on price. Its launch post argues that sandboxes have "no moat" and promises to refund the difference to anyone who finds a cheaper one.
Per-minute rates
Compute is metered by the minute while a sandbox runs, and disk while it is kept:
- vCPU: $0.0011 per vCPU-hour
- Memory: $0.00096 per GB-hour
- Disk: $0.00012 per GB-hour
The launch post works this through for a sandbox with 2 vCPUs and 4 GB of memory left running for a month, at $4.76. New accounts get $5 of credit, and startups can apply for up to $10,000 in credits.
What runs inside
A sandbox can host a ready-made agent harness, among them Hermes, OpenClaw, Claude Code, Codex and OpenCode, or a team's own, as well as background jobs, Docker containers, and desktop and browser sessions. The pitch to software companies is isolation per end customer: each customer's tools, files and credentials sit in a separate sandbox. Apps inside a sandbox can be exposed over HTTPS on a provided address with a required key, or on the customer's own domain. The site says the service powers agents for more than 250 startups.
Key facts
Maker: Agent 37 Launched: Y Combinator launch post, 11 November 2026 Billing: prepaid, metered by the minute Pricing: $0.0011 per vCPU-hour, $0.00096 per GB-hour of memory (site, read 12 November 2026) Backed by: Y Combinator
Categories & features
- Artificial Intelligence - AI
- DevOps
- Docker
Trust Score
An earned signal from verification, reviews, awards, transparency and engagement - the vendor can't buy it.
Updated 11/12/2026
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