Pricing
One flat price per tier, and every month your tier retires a fixed basket of certificates sized above the footprint of your entire token allowance, whether you used it or not. Your retirements meet or exceed the conservative end (P90) of your estimate, every month, by construction. Tier caps key on billable tokens for placement; cached input counts at a tenth; nothing about your usage or our methodology sizes what is retired or what you pay.
Free
$0
10M billable tokens / mo
Estimates only*, open to everyone. The reference implementation of the methodology.
Personal Light
$3 / mo
5M tokens · retires 150 gal / 75 kg / 150 kWh monthly
Casual AI use, counted and answered for. Billed annually ($36/year).
Personal
$7 / mo
25M tokens · retires 475 gal / 230 kg / 425 kWh monthly
For individuals whose AI usage deserves a real record.
Personal Plus
$12 / mo
60M tokens · retires 1,150 gal / 550 kg / 1,050 kWh monthly
For daily agent users and indie developers with real volume.
Personal Max
$26 / mo
100M tokens · retires 1,900 gal / 900 kg / 1,700 kWh monthly
Team-scale volume for one person, with the record in your name.
| What you get | Free | Personal Light | Personal | Personal Plus | Personal Max |
|---|---|---|---|---|---|
| Billable tokens per month | 10M, estimate only* | 5M | 25M | 60M | 100M |
| What your full-allowance footprint costs at supplier pricing (every basket exceeds it) | none | up to ~$0.90 | up to ~$4.20 | up to ~$9.90 | up to ~$16.50 |
| Footprint estimates with full 90 percent ranges | ✓ | ✓ | ✓ | ✓ | ✓ |
| Every ingestion path: SDK, OpenTelemetry, sync scripts, connections, CSV, MCP | ✓ | ✓ | ✓ | ✓ | ✓ |
| Certificate retirements bundled, accrued at P90 | · | ✓ | ✓ | ✓ | ✓ |
| A fixed monthly retirement basket, every month, whether you used your allowance or not | · | ✓ | ✓ | ✓ | ✓ |
| Water, carbon, and renewable energy certificates | · | ✓ | ✓ | ✓ | ✓ |
| Monthly contribution certificate: your share of a pooled retirement, naming the real registry reference | · | ✓ | ✓ | ✓ | ✓ |
| Approved claim language schedule | · | ✓ | ✓ | ✓ | ✓ |
* Estimates only: the free tier counts and estimates usage; certificate retirements begin with paid tiers.
Not sure where you fall?
Estimate my usageA few questions, and the estimator shows which tier your volume lands in.
Estimate and backfill your usage
Already been running AI? Enter your total historical tokens for an indicative estimate of what a backfill would retire and cost, sized at the same conservative accrual basis the product bills against.
Indicative and self-estimated: a standard usage mix with conservative defaults, priced at current supplier rates. The binding quote comes from your own account's history window in the console, where figures and price freeze the moment you quote. Backfill currently covers up to your last 12 months; longer histories join when the historical coefficients clear methodology review. Create a free account to start metering and quote from your real usage.
Paid tiers are coming soon
Start estimating today with a free account: email only, no card. We email you the moment paid tiers and their certificate retirements open.
What your tier retires, every month
Personal, $7 a month. The full-allowance figures are derived from the methodology at current supplier pricing.
- Water restoration
- 475 gal (full allowance needs ~460)
- Carbon retired
- 230 kg CO2e (~225)
- Renewable generation matched
- 425 kWh (~421)
The basket exceeds the estimated footprint of your entire monthly token allowance in every category, so your retirements meet or exceed your accrual-basis estimate no matter how much of the allowance you use. The basket is a defined product allowance, not a coverage representation; your estimate keeps its own range on every surface.
What your tier retires, every month
Business, $250 a month. The full-allowance figures are derived from the methodology at current supplier pricing.
- Water restoration
- 19,000 gal (full allowance needs ~18,391)
- Carbon retired
- 9,000 kg CO2e (~8,965)
- Renewable generation matched
- 17,000 kWh (~16,814)
The basket exceeds the estimated footprint of your entire monthly token allowance in every category, so your retirements meet or exceed your accrual-basis estimate no matter how much of the allowance you use. The basket is a defined product allowance, not a coverage representation; your estimate keeps its own range on every surface.
Paid tiers are monthly subscriptions that renew automatically until canceled. Cancel any time from the console's billing portal; cancellation takes effect at the end of the current billing period, and there are no cancellation fees. Interim wording pending counsel review.
Billable tokens, explained
Modern AI workloads reuse the same context over and over, and providers serve those cache reads with about a tenth of the compute. Counting them like fresh tokens would overcharge exactly the teams that engineered their usage well, so tier caps count billable tokens:
billable = fresh input + output + 10% × cached input
A worked example: a firm that looks huge on paper
- Tokens tracked in a month
- 4,000M
- of which cache reads (93%)
- 3,720M × 10% = 372M billable
- fresh input and output (7%)
- 280M billable
- Billable tokens
- 652M → Business tier
Every count comes from your provider's own usage reporting, so your bill is auditable from numbers you can verify. The 10 percent cached rate is a fixed billing rule, kept deliberately separate from the estimation methodology: revising a methodology coefficient can change an estimate, never your bill. The footprint estimate itself also credits cache reads, at the methodology's own cached-input coefficient.
Every tier includes the whole pipe
SDK capture, OpenTelemetry, sync scripts, managed Google connections, CSV upload, the questionnaire estimate, read-only API keys, and the MCP server for coding agents are on every tier, including free. Tiers price the volume of usage estimated and the retirements bundled against it, never access to the plumbing.
Why tokens, not footprint
Your bill depends only on tokens tracked, a number you report and can audit, never on estimated gallons, tonnes, or credit value. That separation is deliberate: no coefficient in our methodology can influence our revenue, so the estimates stay honest and so does the price. If a methodology revision changes an estimate, your subscription does not move.
Where your subscription goes
The basket is a defined product allowance, pinned in writing: it can only grow or hold during your paid term, and it exceeds the accrual-basis footprint of your full token allowance in every category. Use a tenth of your allowance and the basket still retires whole; the surplus is the point, not an accident.
Why retirements accrue at P90
Footprint estimates carry wide, honestly stated ranges. Bundled retirements accrue at the 90th percentile of the methodology's modeled parameter distribution rather than the midpoint: deliberate conservatism headroom over the central estimate. The interval covers the methodology's stated parameter uncertainty, not every source of uncertainty (model structure and excluded scope sit outside it). Certificates state this basis explicitly: retired against the 90th percentile of the estimate range, never presented as exact matching or as any neutrality status.
What happens at the token cap
Estimation continues past the cap; nothing is ever gated or interrupted. Retirements accrue up to the cap, and sustained billable usage above it moves you to the next tier at the following billing period, with notice. The certificate always states the token volume the period's retirements were accrued against.
Annual billing with two months free is available on Team and Business. All claims customers may make about retirements are governed by the approved language in the Terms of Service; footprint figures are modeled estimates with stated ranges per the methodology.