Credits and Billing

The Developer API uses a credit system. You can buy credits in addition to your plan at any time.

Credit Basics

Rule	Value
Credit value	1 credit = $0.01
Free plan	800 credits/month
Standard plan	7,500 credits/month
Pro plan	15,000 credits/month
Purchased top-up TTL	Does not expire

You can buy credits in addition to your plan at any time.

Model Pricing

Model	Best for	Typical time	Credits	USD
Echo-2 Standard	Fast, general-purpose world generation	~8 minutes	160	$1.60
Echo HQ	Higher-detail, higher-resolution worlds	~60 minutes	800	$8.00
Echo 3	Real spaces from a phone capture	~30–120 min	900 + 1/frame	$9.00 + $0.01/frame

Echo 3 is priced per capture and frame. See Echo-3 Capture Pricing.

What API Actions Cost

API action	Echo-2 Standard	Echo HQ
Text-to-world generation	160 credits ($1.60)	800 credits ($8.00)
Image-to-world generation	160 credits ($1.60)	800 credits ($8.00)
Panorama-to-world generation	160 credits ($1.60)	800 credits ($8.00)

Echo-3 Capture Pricing

With an API key, an Echo-3 capture costs 900 credits ($9.00) plus 1 credit ($0.01) per frame, up to 5,000 frames. Captures processed in the SpAItial Capture app are priced per scan minute.

credits = 900 + frame_count
USD     = $9.00 + $0.01 × frame_count

Frames	Credits	USD
300	1,200	$12.00
1,000	1,900	$19.00
2,000	2,900	$29.00
5,000	5,900	$59.00

The frame count is the number of images in your ZIP. Get the exact price with GET /v1/captures/process-quote?frame_count=<n>. Failed and cancelled captures aren't charged.

Plans

Every plan includes API access to Echo-2 Standard and Echo HQ. Standard and Pro add Echo-3.

Plan	Credits	Echo-2 generations	Echo HQ generations	API usage fit
Free	800/month	~5/month	~1/month	Evaluation and prototypes
Standard	7,500/month	~46	~9	Non-commercial use
Pro	15,000/month	~93	~18	Commercial use
Enterprise	Custom	Custom	Custom	Multiple users and volume

Standard and Pro subscribers can purchase additional credits. Purchased credits are shared across the app, web app, and API. Paid plans are available monthly or annually; annual plans save 20% and grant credits monthly. New subscriptions include a card-required first month free.

Expiry and Spend Order

Every current credit source works across Capture, the web app, and the Developer API.

Source	Expiry
Free monthly credit	Expires after one month; unused credit does not roll over
Subscription credit	Expires at the next monthly grant; unused credit does not roll over
Purchased top-up	Rolls over between subscription periods; does not expire
Permanent grant	No automatic expiry

The wallet spends the soonest-expiring credit first: free monthly, subscription, purchased top-up, then permanent grants.

Insufficient Credits

If a world-generation request cannot reserve enough credit, the API returns a 402 with error.code = "insufficient_credits". Purchase credits or upgrade your plan in the developer portal before retrying.

{
  "error": {
    "code": "insufficient_credits",
    "message": "You are out of credits. Choose a plan or purchase additional credits in the dashboard."
  }
}