276,814 agent requests last month. $430 flat. $0 in per-token API bills.
LeanStack is the playbook for running an always-on agent stack on flat plans and free tiers: one gateway, routing by task, caching, spend caps, and fixes for what breaks.
9.9B input tokens (7.2B from cache) · 385M output tokens · 66 scheduled jobs · 71,953 failed requests handled
Get early access, $19
Early access. Delivered by email on 1 November 2026. Full refund if we miss that date, plus a 14-day refund after delivery. $29 after release.
Agent Bill Audit, $490
A written plan for your setup within 5 business days. Playbook included. No keys or account access. Full refund if the plan finds no savings.
Not ready to buy? Get one email when it ships.
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FAQ
- Is it out yet?
- Not yet. Early access is $19, and the playbook is delivered by email on 1 November 2026. If we miss that date, you get a full refund.
- Who is it for?
- Builders and small teams already running coding or ops agents who want the same output for a much smaller bill.
- Is this about "free AI"?
- No. Our stack costs $430/month in flat plans. The point is $0 in per-token API bills at high volume, and the playbook says where the money still goes.
- What does it cost?
- $19 in early access, $29 after release. The Agent Bill Audit is $490 and includes the playbook.
- Who is it not for?
- Low-volume users (pay-as-you-go is likely cheaper), customer-facing production workloads that need SLAs, and teams with compliance requirements.
- Will you share my email?
- No. The signup form only tells you when the playbook ships. Gumroad handles purchases.