Pricing

Extentos is free. There is no paid tier at launch.

Free forever, no account

• All 18 MCP tools — capability discovery, spec authoring, code generation, validation, ship-readiness, troubleshooting
• LocalSimTransport — the on-phone simulator that wraps Meta's Mock Device Kit (mwdat-mockdevice / MWDATMockDevice)
• Code generation and validateIntegration — all scaffolding, all correctness gates
• Real-hardware testing through RealMetaTransport — you bring your own Meta Developer Center registration (a one-time, free, ~15–30 min setup with your personal Meta credentials)

These never expire, never charge, and require no Extentos account.

Browser simulator at extentos.com/s

The browser-based simulator at extentos.com/s is free for the first 1000 runtime events per MCP install — no signup, no email, no payment.

A runtime event is something the simulator emits during a session — trigger.fired, block.executed, callback.invoked, flow.completed, etc. A typical voice-to-AI interaction emits roughly 5–10 events, so 1000 events ≈ 100–200 full interactions. Enough runtime to validate a non-trivial spec on your actual app.

What does not count against the meter: MCP tool calls, code generation, validateIntegration, on-device LocalSimTransport activity, real-hardware testing, and any telemetry from your shipped app. Only the dev-time browser-simulator session events count.

After 1000 events: free account

When you exhaust the meter, the device-code flow fires automatically. Your agent gets an authRequired response with a verification URL, you open it, sign up with email + ToS acceptance, and the original createSimulatorSession call retries automatically.

• Free, email-only. No payment, no credit card, no upfront commitment.
• No manual token paste. The agent picks up the auth token automatically once the browser flow completes.
• Unmetered at launch. The free account tier has no event cap right now.

Real hardware testing

Running your app on actual Meta Ray-Ban glasses uses Meta's Device Access Toolkit and requires your own Meta Developer Center registration — a one-time, free, ~15–30 minute setup with your personal Meta credentials. Extentos doesn't sit in that path. There's no per-end-user cost from Extentos when your app ships and end users use it on their glasses.

What's intentionally not here

• No paid tier at launch. No $20/month, no premium voice add-ons, no team seats with billing, no analytics dashboard behind a paywall. The product is at the stage where the priority is getting Extentos into developers' hands and validating the simulator experience, not optimizing revenue.
• Pricing may evolve. Paid options may be introduced for power users as the product matures. Existing free accounts will not be retroactively gated when that happens. Material changes will be communicated via the changelog.

Frequently asked questions

What if I never exhaust the 1000 events?

Then you never need an account. Use Extentos forever, free, anonymous.

What counts as one event?

One emission from the browser simulator during a session — for example, a voice trigger firing, a block starting, a block completing, a callback being invoked. The 7 layers of the event log are the source. MCP tool calls and on-device activity do not count.

Is there a way to reset the meter?

No. The 1000-event meter is keyed to the MCP install's installId and is lifetime. The expectation is that 1000 events is enough to evaluate Extentos on your actual app, after which a free account is the simplest next step.

Do I need a paid plan to ship to production?

No. Production apps run against real Meta Ray-Ban hardware via RealMetaTransport, which doesn't touch Extentos's backend at all. Your shipped app's runtime cost from Extentos is zero.

Is the on-device LocalSimTransport ever metered?

No. LocalSimTransport wraps Meta's Mock Device Kit on the developer's phone or emulator and never reaches an Extentos backend. It's always free, always unmetered, always available.