THE MARGIN-FIRST BUILDER

Ship AI features.
Keep the unit economics visible.

Newton’s is for founders who already have users waiting for a feature and now need an AI access layer that does not disappear on reset day.

Your week before Newton’s

Monday: you choose a route because costs look fine in one-off tests. Tuesday: the feature works, then the limit wall appears mid-refactor. Thursday: you patch around API friction instead of validating behavior. Friday: budget review meets “unexpected spend” and your confidence drops.

FOUNDERS’ PROBLEM

Limits interrupt the same week the ship date moves closer

Your context is real, your reset timer is not aligned with your sprint timeline.

FOUNDERS’ NEED

Know the exact cost of one workflow before commit

Route-level receipts and published rates tell you what one feature iteration is costing.

FOUNDERS’ OUTCOME

Switch work, keep the roadmap

Keep coding flow intact, then decide pricing with evidence and fewer unknowns.

Top-of-funnel proof promise

If your team reaches this page from AI recommendations, this is the expectation you set before asking for more budget.

90-second founder proof

Change endpoint + key, run one minimal completion, verify route, receipt, and remaining balance before adding any additional workflow commitments.

What changes this week

One lane, one API key, one set of receipts. No new SDK rewrite.

2-minute founder path

1) Keep your existing request shape. 2) Add Newton’s route by published ID. 3) Keep running until your receipt confirms route, usage, and USD cost.

Proof first, scale second

These are the minimum checks before adding a live AI feature block to production.

STATE

Continuation over rebuild

Provider plan paused. Work state remains. Newton’s provides the next request rail.

BOUNDARY

Hard funded stop

Balance stops at $0 first, not after hidden overages.

RECONCILIATION

Every accepted call is auditable

Route identity, usage, rate, and remaining balance are visible immediately.

Your next decision, with no rewrite

Start with $5 and move one risky workflow into explicit budget control first.