Account, plans & billing

One OpenEng account covers the whole platform, and the engineering apps are free, forever. OpenEng AI has not launched pricing yet: its paid plans open in Q4 2026. Billing lives on billing.openeng.app.

One account

Your OpenEng account is your Google account. Every surface signs in with it through auth.openeng.app: the five engineering apps, the Console, the Web Console at app.openeng.app, the billing site, and the engines, which pair with or register to your account. There is no separate registration and nothing to link.

In the Console, Account (at the bottom of the nav) has:

• Plan & billing: your plan, what it includes, and a link to billing.openeng.app (View plans on Free, Manage subscription on a paid plan).
• Planning credit: the cloud planning credit that comes with Pro (see below).
• Preferences: the Light/Dark switch. The choice is stored to your account, so it follows you to every device.
• Session: who you're signed in as, and Sign out.

Engineering apps: free, forever

Free, forever — no card, no trial, nothing to unlock. All five apps (Terminal, Kubernetes, Data, Git and Chat), with no plan limits; no paid tier exists. If you only use the engineering apps, nothing else on this page applies to you. (The Git and Chat engines aren't published yet; see Install.)

AI pricing

The AI product — the engine, and everything you author in the Console (models, agents, templates, execution flow, schedulers, cells, MCP, configs) — hasn't launched yet. No Pro or Enterprise price is public: billing.openeng.app shows every AI plan as "Launching Q4 2026", with pricing announced at launch, and every subscribe, recharge and contact button for AI stays disabled until then. Trial terms are announced at launch too.

The Free plan includes the Console itself: sign in, then author and publish models, agents, templates, MCP servers, cells and configs. Running what you publish needs the openeng engine, and the engine registers only with an active Pro plan. Until Pro launches, the engine can't be started on a Free account. (As of September 25, 2026 the OpenEng AI services aren't live on any plan yet; see the status note at the top of this page.) Some domains (schedulers, API keys, sandboxes, storage points) are gated behind a higher tier that isn't purchasable yet; their pages explain what that tier will include, and the nav shows a lock badge on them in the meantime. The Human-in-the-Loop and Roles pages are Pro features too, and show the same explanation in place of their content.

Pay-as-you-go, also launching in Q4 2026, lets a Pro or Enterprise account top up USD planning credit in $5, $10 or $25 packs, charged in INR through Razorpay. It adds to a plan; it isn't an alternative to one.

What each plan includes

From the Console's plan matrix and the API's limits. The server enforces every limit, whatever the page shows.

Device Use is a Pro entitlement, but it needs an engine build with the X11 device backend, which the published Linux x86_64 engine doesn't include yet.

Enterprise accounts can also have their own fleet sizes (active sandboxes, headless machines, schedulers and API keys) set on the account. Counted limits apply to enabled items; a disabled draft doesn't count. When you're at a limit, the Console says so, and the server refuses anything beyond it.

Planning credit

Pro includes a one-time planning credit when it activates, so the planner's included Cloud Planner works with no API key of your own. Its requests go through api.openeng.app to Gemini on Vertex AI. In the Console, Account → Planning credit shows:

• Available, Balance, Reserved and Expires, plus how many plans ran and what they spent recently.
• Top-up buttons, meant to open billing.openeng.app to pay once pay-as-you-go launches; as of September 25, 2026 billing.openeng.app doesn't offer a top-up checkout yet.
• Your last 10 transactions, with a receipt link for each top-up.

When the credit runs out, the planner falls back to the embedded on-device model and runs continue. On Free, the card only explains what Pro adds.

Engines and devices

• Engineering app engines. Each app has its own engine, and each engine runs once per machine: starting it again replaces the running one. Pairing uses one-time keys. The OpenEng API mints at most five unused keys an hour per account, shared by all the apps (a key an engine has used no longer counts), and each app also counts the keys it mints in your browser (how pairing works).
• The AI engine. One OpenEng key runs one engine at a time; starting a second engine with the same key is refused, with a message such as this key already runs an engine — stop it or generate a new key. Machines that work unattended use API keys and sandbox nodes; see API keys & sandboxes.

billing.openeng.app — the walkthrough

Sign in with the same Google account as everywhere else. The dashboard, payment history and cancel flow are live; the AI subscribe and recharge buttons stay disabled until launch. Razorpay's hosted checkout and invoices handle payment directly; the platform itself never stores card details.

The dashboard

The dashboard (/) shows your plan. With nothing to pay, that's the free engineering plan, plus an AI panel marked "Launching Q4 2026" whose Subscribe and Recharge tokens buttons are disabled. If the billing service can't be reached, the page says so and your plan is unaffected.

Payment history

Payment history (/history) lists each payment with its date, amount, status and a View receipt link to Razorpay's hosted receipt, plus a summary of the next payment when one is due. Amounts are charged in INR. With no payments, it says so.

Cancel

These steps apply only to an account with a paid subscription on record. Cancel subscription on the dashboard asks you to confirm, then stops the subscription from renewing. Your plan stays active until the end of the current billing period, then the account moves to Free. Nothing you authored is deleted. The full policy is on the refund & cancellation page.

After a failed payment

When a charge fails, the subscription shows Payment problem — retrying while Razorpay retries, then Halted — payment failed if the retries run out. The dashboard shows a "A payment failed" banner with Update payment method, which opens Razorpay's checkout (or Open on Razorpay instead). You can also switch cards at any time from the Payment method card.

Public pages

Pricing (/pricing), terms, privacy, the refund & cancellation policy (/refunds) and contact (/contact) are public on billing.openeng.app. When a paid plan goes live, charges are processed in Indian rupees (INR) by Razorpay.

Plan state in the Console

The Console reads your plan when you sign in and gates pages to match. A gated page stays in the nav with a lock badge and opens a page that explains the feature, which plan unlocks it, and a View plans link. If the Console can't confirm your plan (a network or sign-in hiccup), it shows the Free view with "Plan unverified — we couldn’t confirm your plan, so this shows the Free view" and a Refresh button, so a paying user is never stuck.

Troubleshooting

I'm only using an engineering app and hit a locked page or a payment prompt. That's not expected — the engineering apps have no paid tier to gate behind. If this happens in Terminal, Kubernetes, Data, Git or Chat, please report it.

"Plan unverified" on a locked page or the Account page. The plan couldn't be confirmed (a transient network or sign-in hiccup), so the Console shows the most restrictive view defensively. Press Refresh next to the notice.

I want to subscribe to AI and can't. Expected — AI hasn't launched, and there's no price to pay yet. Watch openeng.app/pricing or this page for the Q4 2026 announcement.

The AI engine says an active Pro plan is required to run an engine. The engine registers only with an active Pro plan, and Pro launches in Q4 2026. The Free plan covers the Console, and authoring and publishing in it.

The Console can't load or save anything, or the engine can't register. As of September 25, 2026 the OpenEng AI services behind the Console and the engine aren't live yet, whatever the plan (see the status note at the top of this page).

A payment failed and the subscription says Halted. Razorpay's retries ran out. Use Update payment method on the dashboard; the subscription resumes after a successful charge.

I need a receipt. Open Payment history on billing.openeng.app and use View receipt on the payment.