Simple billing
One price per call. Pay by card.
Ahura OS bills for what you use. Create an account, add a credit card, then buy ACUs in advance with bonuses for larger purchases or pay for usage on a recurring cycle. A call is priced the same whichever you choose.
Choose how you pay
Prepaid ACUs
Buy in advance, with bonuses
- Who pays
- You, up front by card, in any amount
- Setup
- Buy ACUs, then call as normal
- Cost
- Bonus ACUs on larger purchases lower your price per call
- Best for
- Steady use and the lowest price per call
Recurring usage charges
Pay for what you used
- Who pays
- The account owner, on a recurring cycle
- Setup
- Add a card and create an API key
- Cost
- Pay only for usage, with no minimum
- Best for
- Predictable invoices and team budgets
You can use both on one account. They draw on the same per-agent limits and the same safeguards.
Prepaid ACUs
Buy ACUs in advance. Get bonus ACUs.
Every call is priced in ACUs, and 1 ACU is USD $0.01. Buy ACUs ahead of time with your card and draw them down as you call. The more you buy at once, the bigger the bonus.
| You pay | ACUs | Bonus | Bonus ACUs | You receive | Effective price per ACU |
|---|---|---|---|---|---|
| $1 | 100 | None | 0 | 100 ACUs | $0.01000 |
| $5 | 500 | +5% | +25 | 525 ACUs | $0.00952 |
| $10 | 1,000 | +10% | +100 | 1,100 ACUs | $0.00909 |
| $25 | 2,500 | +11% | +275 | 2,775 ACUs | $0.00901 |
| $50 | 5,000 | +13% | +650 | 5,650 ACUs | $0.00885 |
| $100 | 10,000 | +15% | +1,500 | 11,500 ACUs | $0.00870 |
| $250 | 25,000 | +20% | +5,000 | 30,000 ACUs | $0.00833 |
| $500 | 50,000 | +25% | +12,500 | 62,500 ACUs | $0.00800 |
| $1,000 | 100,000 | +30% | +30,000 | 130,000 ACUs | $0.00769 |
Bonus ACUs are added when you buy. Pricing per call is in ACUs, so a larger purchase lowers your effective price on every call. Tiers are examples of the schedule and may change.
Recurring usage charges
Recurring usage charges on a credit card.
Prefer a familiar invoice to prepaying? Put your usage on a card. You pay only for what was used, on a repeating cycle, with a cap you control.
- 1Create an accountSign up with your login details. There is no subscription and no contract.
- 2Add a cardSave a credit card to your account. No prepayment and no minimum.
- 3Create an API keyCreate an API key in your account. It is what ties your agents’ usage to your card.
- 4Configure your MCP clientStore the key in an environment variable and point your client’s MCP configuration at it. The key goes in a request header, never in a prompt.
- 5Use Ahura as normalEvery call is priced up front and metered in real time against your account.
- 6Usage adds upCalls and storage are totalled per partition across the billing period.
- 7Charged on a recurring cycleThe total is charged to your card on a regular cycle, with an itemised receipt showing what each partition used.
Connecting with your API key
Keep the key in an environment variable or your secret manager, and reference it from the client configuration the way paid MCP connectors usually do. Never commit it to a repository or paste it into a prompt.
export AHURA_API_KEY="<your key>" claude mcp add --transport http ahura https://api.ahuraos.app/mcp \ --header "Authorization: Bearer $AHURA_API_KEY"Setup for every client
Recurring usage charges
You are charged for what you used, on a repeating cycle. There is no subscription fee for access.
A spending cap you set
Choose a limit for the billing period. Usage stops at the cap, so a runaway agent cannot run up a surprise bill.
Receipts per partition
See what each project, customer or experiment cost, so charges can be split and attributed.
The same prices
A call costs the same whether you use prepaid ACUs or recurring charges. Only the way you pay differs.
Per-agent limits
Cap what each agent can spend, whichever way the account is paid.
A gentle failure path
If a payment fails or the cap is reached, partitions go read-only rather than being deleted, and a 7-day grace period follows.
Spend stays under control
Letting an agent pay for things only works if there are hard limits. Those limits live in the platform, not in the agent’s prompt.
- Per-agent and per-account spending limits set by you
- A spending cap for the billing period, so usage stops at the limit
- Every call is priced up front and metered against your account
- Hard stop at zero: the partition goes read-only, then a 7-day grace period before anything is torn down
Prices
Every tool lists its price, and prices differ by service. A memory read costs a fraction of a cent; a sandbox run costs more because it uses more. An idle partition costs only its storage.
New accounts start with $10 in free credit to try Ahura OS.