How do their growth rates compare?

Agent 37 has a month-over-month growth rate of +24.2%; NotesCast has 0%.

How does pricing compare?

Agent 37: Free Trial, Contact for Pricing. Prepaid, pay-as-you-go compute metered per minute with no subscription or minimum. New accounts get a $5 starter credit once a card is on file, and the company advertises up to $10,000 in credits for startups. Exact unit rates are published on the pricing page and change over time, so confirm current figures there. NotesCast: free. No public pricing page was found on the site at the time of review. Access to the indexed transcripts and podcast browsing appears to be free to use; any future paid tiers are not documented publicly.

What are alternatives to Agent 37 and NotesCast?

Other tools in related categories include Adobe Podcast, RunPod, Modal, Browserbase, Castmagic.

Agent 37 vs NotesCast — Traffic (180.03K vs 0), Pricing & Verdict

Open AI Tools

Agent 37 vs NotesCast — Traffic (180.03K vs 0), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Agent 37	NotesCast
Official Domain	agent37.com	notescast.com
Pricing Model	Free Trial, Contact for Pricing	free
Monthly Visits	180.03K (180,030)	0 (0)
MoM Traffic Delta	+35.12K (+24.2%)	0 (0%)
Primary Market & Share	🇵🇾 Paraguay (52.6%)	🌐 Global (—)
Direct Visits / mo	72.67K	0
User Rating	4.3	4.1
Supported Platforms	Website	Website

Agent 37

The low-cost cloud sandbox where AI agents actually live

Per-minute sandbox billing

Pay for vCPU, memory and disk separately while the sandbox runs; when it sleeps or is deleted the compute meter stops and you are left with disk cost only.

Ready-made agent harnesses

Launch Claude Code, Codex, OpenClaw, OpenCode, Hermes, Grok or your own Docker image, each in its own tenant-isolated sandbox.

Persistent workspace and scheduling

Files survive sleep, restarts and weeks of inactivity, and agents can be attached to cron-style schedules so work runs unattended.

Networking and custom domains

Expose individual ports publicly, attach your own domain, or keep everything behind an API key on an authenticated URL.

Strengths & Pros

+Aggressively low per-minute pricing with an explicit public comparison against major sandbox providers
+Persistent disk and scheduling make it suitable for real agent workloads rather than one-shot tasks
+Strong isolation story (gVisor, firewalled egress, no public hostnames) plus SOC 2 Type I
+Flexible model and tool sourcing: platform gateway, bring-your-own keys, or pay-per-use tools