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Plans

Every plan includes the whole catalog and unlimited discovery. Paid plans add private tools, members, and the governance a team or a client will ask you for. Current prices are always the ones shown at danubeai.com/pricing. The Starter plan ($12.99) was retired on 3 September 2026; accounts that had it keep it.

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Founding customers

The first 20 paying customers get Pro at 29amonth,or29 a month, or 290 a year paid up front, and that price never goes up while the plan is kept. In return we ask for a 30-minute call in the first two weeks and permission to quote you. The offer, and how many slots are left, is shown on the pricing page and under Subscription in Settings; it closes on its own when the slots are gone.

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How usage is counted

  • A tool call is one successful execution of a marketplace or private tool, through MCP, the SDKs, the CLI, or a workflow step. Failed calls are not counted.
  • Discovery calls (search_tools, list_services, get_service_tools, reading a tool’s schema) are never counted, on any plan.
  • The monthly limit resets at the start of each billing period.
  • When a plan’s limit is reached, calls return 429 with an upgrade_url. Agents should tell the user rather than retry. Accounts that have turned on pay as you go keep going instead (below).

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Pay as you go past the cap

Turn on Pay as you go under Subscription in Settings and, past the monthly cap, direct tool calls (execute_tool, batch_execute_tools, the SDKs, the CLI) keep working and are paid from your wallet at 0.1¢ a call, billed as 1¢ for every 10 calls. The first call of each block of ten needs at least 1¢ in the wallet. Workflows and chat keep the monthly cap. The current terms come back on GET /v1/stripe/subscription as overage.

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Members and the data plane follow the owner’s plan

Members per organization and the in-VPC data plane are entitlements of the account that owns the organization. A Pro owner can invite four teammates who are all on the free plan; a Team owner can invite anyone. Inviting past the limit returns 402 with the reason, as does enrolling a data-plane agent on a plan that does not include it. Agents already enrolled keep running if the owner’s plan changes.

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Hosted AI tools on the free plan

Danube’s own hosted AI tools (webpage summary, structured extraction, classification, translation and similar) run on Danube’s model budget, so the free plan caps them separately from the monthly call count:
  • Direct calls: 20 a day, resetting at 00:00 UTC. Past that a call returns 402 with error.code = "upgrade_required".
  • Workflows: 5 runs in total that include a hosted AI step, as a trial. When the trial is used up a workflow run returns 402 with error.code = "payment_required".
Paid plans lift both caps; their monthly call count still applies.

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Manage your subscription

1

Open Settings

Go to Dashboard > Settings and find Subscription.
2

Upgrade or change plan

Pro and Team check out through Stripe. Changing between paid plans is prorated on the current subscription. Manage billing opens the Stripe portal for invoices, payment methods and cancellation.
3

Enterprise

Enterprise is set up with us: danubeai.com/contact-sales.
The plan catalog, Stripe price ids, pay-as-you-go terms and the founding offer’s remaining slots are public on GET /v1/stripe/plans. Some publishers charge per call. Those charges come from a wallet, not from your plan:
  • Credits are topped up by card from Dashboard > Finances.
  • USDC on Base is supported for agents that pay natively; per-call and daily spending limits apply and can be changed from the same page or through the update_spending_limits MCP tool.
  • A tool’s price is shown on its page and in search results before you call it.

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Publishers

If you list paid tools, earnings accrue per successful call and can be paid out through Stripe Connect or to a USDC wallet once the minimum payout is reached. See the Finances page in the dashboard.