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Not a cut of what moves through the boundary — utility access to it. A subscription tier covers your allotment; depth beyond it meters per action at a signed, public price list you can curl and verify before you spend a cent. And a REFUSE is never billed.
You can't downgrade your own bill by asking nicely, and we can't upsell you. The meter reads what the substrate actually proved about each decision — and prices it. Three rungs, plus a floor that is always free.
A denial is the product working. Charging for it would give a governance company a financial interest in refusing — so a REFUSE is never billed, by construction, not by discount.
A decision was made and traced against the boundary. Evidence is self-asserted — the substrate admits or terminally refuses, and the decision is receipted.
The decision was made against attested evidence — we can prove why it was admitted, not merely that it was. A signed, verifiable certificate of the decision.
Attested and the capability was redeemed exactly once — the full chain: proven authority, proven evidence, single use. The highest assurance the substrate can give.
Not a number in a PDF. GET /v1/prices returns a signed price list you verify with the public key alone: hash-locked, versioned, and unre-writable after the fact. The panel below is fetched live from the runtime right now — no cached copy, no typed values.
api.barycenters.ai/v1/prices
What the seal proves. The list is versioned, hashed, and signed under a named key. A bill cites the price list it was computed against by hash — so what you were charged under is a provable fact, and we cannot retroactively re-price a period, because the old list still hashes to the old number. Changing a price means publishing a new version, never editing one in place.
A REFUSE is never billed. The meter counts admitted work, never denials — that incentive is welded into the price list itself, not promised on a page.
Two layers that coexist, and neither can surprise you: the tier is a fixed monthly amount, and the meter is the signed list above. Your tier includes a monthly allotment; only depth beyond it meters per action.
Covers: an allotment of admissions for your namespace, at a flat monthly price.
→ Five tiers, $79 to $250,000 a month. Pick one at the door when you reserve your namespace. The tier is your floor of included usage.
Allotments below are derived: tier price ÷ the govern rate. They are the included depth, not a hard cap.
Covers: usage beyond the tier allotment, priced per action.
→ Each admitted action — govern, certify, insure — meters at the signed price above. Fetch the live list at /v1/prices.
A REFUSE is never billed — by design, not by discount. The endpoint that prices actions is live now.
The tiers the door offers today. The included column is the govern-action depth each tier covers before the meter starts — tier price ÷ the govern rate, so a sub-cent floor buys a very large allotment.
| Tier | Slug | Price | Included govern-actions / mo | For |
|---|---|---|---|---|
| Developer | developer | $79 / mo | ~395,000 | Individuals and first integrations putting an action behind the boundary. |
| SMB | smb | $1,099 / mo | ~5,495,000 | Small teams governing real, consequential actions in production. |
| Mid-market | mid-market | $5,099 / mo | ~25,495,000 | Admission across multiple services, at production depth. |
| Enterprise | enterprise | $45,000 / mo | ~225,000,000 | Org-wide governance of autonomous actions at scale. |
| Sovereign | sovereign | $250,000 / mo | ~1,250,000,000 | Nation- or platform-scale, governed under one human-authored boundary. |
Tier prices come from environment configuration, never typed in code · included allotments derived from the signed govern rate · pick a tier at the door →
Pick a tier at the door, lock your namespace, and every decision inside it meters against a price list you can verify yourself. The primitive is live over REST today.
utility access, not a transaction cut · prices signed + versioned · a REFUSE is never billed · authority_effect = 0