You already know the basic rule: 1 credit = 1 fully optimized product page, and scanning is free. This guide goes further. It's for merchants and agencies managing large catalogs who want to squeeze the maximum value from every credit ā by optimizing the pages that pay off first, avoiding waste, and using the advanced levers (Booster packs, BYOK on the Agency plan).
The key idea: a credit spent on a high-potential page (high impressions, position 11-20) returns far more than a credit spent on a page nobody searches for. ROI doesn't come from how much you generate, but from what you generate it on.
Pricing recap: what each action costs
Before optimizing, let's set the costs. Scanning never consumes a credit, which lets you audit your entire catalog for free before deciding where to invest.
| Action | Cost | ROI impact |
|---|---|---|
| SEO scan / audit (entire catalog) | Free Ā· unlimited | Audit everything, only pay for what's worth it |
| Optimize a page (title + metas + descriptions + ALT + FAQ + structured data) | 1 credit | The unit of work ā focus it on high-potential pages |
| Translate a page (per target language) | 5 credits | 5Ć the cost of an optimization: reserve for your active catalog |
| Preview, rollback, history | Free | Iterate without fear of "burning" credits |
Translation costs 5 times an optimization. It's the heaviest line item: a product translated into 3 languages is 15 credits (3 Ć 5), the equivalent of 15 optimized pages. So the first rule of saving is to only translate what sells in the target language.
Credit economics per plan
Each plan has its volume "comfort zone." Knowing your plan's real capacity prevents over-paying for a Booster or upgrading too early.
| Plan | Credits / month | Optimizations | Or translations (5 cr) |
|---|---|---|---|
| Free trial | 150 | ~150 pages | ~30 pages |
| Starter ā ā¬39 | 1,500 | ~1,500 pages | ~300 pages |
| Growth ā ā¬99 | 5,000 | ~5,000 pages | ~1,000 pages |
| Agency ā ā¬299 | 20,000 | ~20,000 pages | ~4,000 pages |
Billing tip: annual billing lowers your cost per credit ā the discount depends on the plan (up to roughly -38%). If your usage is steady month after month, it's the simplest ROI lever, without changing a single setting.
Real cost per optimized page
Divide the plan price by the included credits to get your unit cost:
- Starter: ā¬39 / 1,500 = ā¬0.026 per optimized page
- Growth: ā¬99 / 5,000 = ā¬0.0198 per page
- Agency: ā¬299 / 20,000 = ā¬0.015 per page
The higher the plan, the lower the per-page cost. But that only holds if you use the quota: paying for Agency to optimize just 2,000 pages costs more per unit than staying on Growth. Match your plan to your real monthly volume.
Thinking ROI: where to spend credits first
This is the heart of advanced optimization. Not all pages are equal. Here's the priority order that maximizes the return of every credit.
1. "Striking distance" pages (positions 11-20)
These are your best opportunities. A page already on Google's page 2 often just needs a better title, metas and content to break into page 1 ā where most of the clicks are. The credit spent here has the highest leverage. Spot them via Identifying striking distance keywords.
2. High-impression, low-CTR pages
If Google already shows a page often but nobody clicks, the issue is usually the title and meta description. One optimization turns "wasted" impressions into real traffic, without having to gain a single position. Excellent credit-to-impact ratio.
3. Your high-margin or strategic products
Beyond pure SEO, focus credits on the pages that earn the most once the visit lands. A credit improving a best-seller weighs more than a credit on an end-of-life product.
4. The rest of the catalog, in bulk
Once priorities are handled, optimize the rest in batches ā no rush, within your monthly quota. The free scan already showed you which pages score lowest: start with those.
Avoid: generating across the whole catalog "in one block" with no sorting. You spend just as many credits on an invisible page as on your future Google #1. The free scan exists precisely to sort before you spend.
Reducing waste: selective scope and delta scans
Wasted credits almost always come from unnecessary or redundant generations. Two reflexes:
- Selective scope. Don't run a full optimization when only the title is weak. Target the subset of genuinely weak pages instead of regenerating everything.
- Delta scans. Since scanning is free, re-scan regularly to regenerate only what changed or degraded ā instead of re-running pages that are already good. That way you concentrate your credits on the real "delta" of the catalog.
Because preview, rollback and history are free, you can iterate risk-free: preview, compare, and only apply what genuinely improves the page.
Booster packs: the reserve that never expires
Got a one-off project (a new collection, a seasonal revamp) that exceeds your monthly quota? Rather than upgrading for a single month, get a Booster pack. These credits are consumed after your monthly quota and never expire ā they stay your safety reserve.
| Pack | Credits | Price | Cost per credit |
|---|---|---|---|
| Booster S | 500 | ā¬9 | ā¬0.018 |
| Booster M | 2,000 | ā¬19 | ā¬0.0095 |
| Booster L | 6,000 | ā¬49 | ~ā¬0.0082 |
Consumption logic: Fexa AI spends your monthly credits first (which reset), then your Booster credits (which never lapse). So you never "lose" a Booster at month's end.
When to get a Booster instead of upgrading? If the overage is one-off, the Booster is cheaper: you pay the extra once and it doesn't expire. If the overage is recurring every month, moving up a plan permanently lowers your cost per page.
BYOK (Agency): bypassing platform credits
The most powerful ROI lever for very high volumes: BYOK (Bring Your Own Key), reserved for the Agency plan.
With BYOK, you enter your own AI API key. Fexa AI then routes generations to your account at the AI provider instead of using the platform key. In practice, you pay the AI directly to the provider, at its per-token rate, instead of consuming Fexa credits.
What the engine (AI gateway) confirms:
- Your key takes priority. As soon as a valid BYOK key is supplied for the matching provider, it is used before any platform key.
- BYOK providers: the personal key is supported for Gemini and OpenAI. You pick the model from the available list.
- Encrypted storage. Your key is encrypted at rest; it's only used to sign your own AI calls.
When is BYOK worth it? At very high volume, paying for AI per token through your own account can come out cheaper than consuming credits ā and it lifts the monthly quota ceiling. At moderate volume, the credit system stays simpler and often more advantageous (everything included, no third-party billing to manage). For setup, see Configuring your AI key (BYOK).
A 5-step method to maximize ROI
- Scan everything (free) to map the SEO scores of your entire catalog.
- Prioritize: striking distance first, then high-impression / low-CTR, then strategic pages.
- Optimize targeted on those priorities ā 1 credit each ā before touching the rest.
- Translate sparingly: 5 credits/language, only on the catalog that sells in each market.
- Cover peaks with a one-off Booster, and switch to BYOK (Agency) if your volume goes industrial.
Frequently asked questions
Which action consumes the most credits? Translation: 5 credits per page per language, i.e. 5 times an optimization. Reserve it for the catalog that actually sells in the target language.
Can scanning really cut my consumption? Yes. Because it's free and unlimited, it lets you sort before you spend: you only generate on pages that deserve it, and you re-scan to handle only the "delta" that changed.
Booster or upgrade ā which is better? A Booster for a one-off need (it never expires). Upgrade if the overage is recurring, because the cost per page drops permanently.
Does BYOK remove credit consumption? With BYOK, generations go through your own key and your account at the AI provider, so you pay the AI directly instead of consuming platform credits. BYOK is available on the Agency plan, for Gemini and OpenAI.
Could my Booster credits get "eaten" before my monthly credits? No. The engine spends your monthly credits first (which reset), then only your Booster credits (which never expire).
See also
- Understanding the Fexa AI credit system ā the basics of pricing and quotas
- Optimizing your credit consumption ā everyday saving reflexes
- Configuring your AI key (BYOK) ā use your own key on the Agency plan
- Topping up your credits ā Booster packs and replenishment