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Nine systems, one platform.

Each system is a complete piece of a backend with its own endpoints, dashboard and allowance. Use one or all of them. They share an identity, an audit log and an account, so the ones you add later already know about the ones you have.

Put together a backend.

Choose systems to see the command that adds them and what they do together.

Add them to an app

$ npx dianthan add identity billing observe

What they do together

  • identity+billingCheckout already knows who is paying, and entitlements arrive with the session.
$29/monthSee pricing

One plan includes every system for every app in the account, so adding one later costs nothing extra.

What the pairs do.

Because the systems share one identity and one event stream, you don't write the code that connects them.

  • Identity + Billing

    Checkout already knows who is paying, and entitlements arrive with the session.

  • Billing + Metering

    Plans carry quotas, and usage counts against them as it happens.

  • Metering + Observe

    Model spend sits next to activity, so you can see a costly account before the invoice does.

  • Identity + Flags

    Target a flag by role, organization or the plan someone is on.

  • Billing + Flags

    Roll a feature out to one plan before you put it on the pricing page.

  • Messaging + Automation

    Email on a schedule or after a delay, with retries and a delivery log.

  • Data + Automation

    Record changes trigger signed webhooks to your other systems.

  • Identity + Messaging

    Message a person, not an address, and respect the preferences they set.

  • Data + Identity

    Records can belong to a user or a team and are filtered to them automatically.

  • Observe + Flags

    Compare error rates and events between the people with a flag on and those without.

  • Metering + Messaging

    Tell a customer they're running low on credits before they run out.

  • Billing + Messaging

    Receipts, failed-payment notices and trial reminders go out without extra code.

  • Models + Billing

    Each customer's model cost is set against what they paid, so you can see who you lose money on.

  • Models + Identity

    Every model call is attributed to a signed-in person, so caps and costs are per customer.

  • Models + Metering

    Usage you meter and model spend sit on the same customer, so a plan's limits can cover both.

  • Models + Observe

    Model latency, errors and spend sit beside the rest of your product's activity.