> ## Documentation Index
> Fetch the complete documentation index at: https://docs.linkaiil.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Credits and Billing

> How Link AI's credit model works: one credit per lead research, one credit per email sent, available packs, and how to estimate cost by volume.

# Credits and Billing in Link AI

Link AI runs on a **pay-as-you-go** credit model. No monthly fee, no hidden tiers, no minimums. You pay only for what you use.

## How Credits Are Counted

The model is simple. Two types of actions consume credits:

| Action                       | Cost     | What it means                                                                                                    |
| ---------------------------- | -------- | ---------------------------------------------------------------------------------------------------------------- |
| **Research** (lead research) | 1 credit | Link AI finds a lead, enriches it (name, role, company, email), validates the email, and writes a custom message |
| **Email Sent**               | 1 credit | Every outbound email — initial or follow-up — consumes one additional credit                                     |

### Example: 50-lead campaign with 2 follow-ups

* 50 lead research = 50 credits
* 50 initial emails = 50 credits
* 50 × 2 follow-ups ≈ 100 credits (if no one replies — in practice less, since some reply after the first)
* **Total max: 200 credits**

In practice, with an average 7% reply rate — you'll burn \~180 credits on a campaign like this.

## Why Both Research and Email Count

This isn't double-charging. The two products are distinct:

* **Research** covers the entire AI pipeline behind the scenes: Apollo enrichment, Exa search, email validation, and LLM generation. Real cost per lead research = much more than 1 credit in API spend.
* **Email sent** covers the infrastructure to deliver via Gmail/Outlook APIs, deliverability tracking, and reply detection.

This model means that **leads you reject after preview don't count as emails sent** — you only paid for the research.

## What Doesn't Consume Credits

* **Preview generation** (before Launch) — free. You can see 20 leads with ready messages before paying to send
* **Reply handling** — replies sync back to your Inbox at no extra cost
* **Reporting / Dashboard** — free. No campaign-view limit
* **Warmup** — free, built in
* **Rejecting a lead from preview** — free. You only paid for research; the email never leaves

## Available Packs

| Pack       | Credits | Price  | Per-Credit  |
| ---------- | ------- | ------ | ----------- |
| Starter    | 100     | \$19   | \$0.19      |
| Growth     | 500     | \$79   | \$0.158     |
| Scale      | 2,000   | \$249  | \$0.124     |
| Enterprise | 10,000+ | Custom | from \$0.09 |

Credits **don't expire**. Buy 500 once, use them over time.

The per-credit price drops as the pack scales. For 1,000+ leads/month, Scale or Enterprise is the most cost-effective.

## How to Pick a Pack

| Monthly use case                  | Recommended pack | Why                                     |
| --------------------------------- | ---------------- | --------------------------------------- |
| First try, 20-50 leads            | Starter          | Confirm it works before going bigger    |
| 100-300 leads, solo founder       | Growth           | Best quality-to-quantity ratio          |
| 500-1,000 leads, small sales team | Scale            | Per-credit price gets competitive       |
| 2,000+ leads, organizations       | Enterprise       | Usage-based pricing + dedicated support |

## Payment and Invoicing

* **Payment**: Stripe. Credit card or monthly invoicing for orgs.
* **Tax invoice**: automatic after every purchase. Visible at **Settings → Billing → Invoices**.
* **Israeli business invoicing**: supported. Fill out company details in the account and invoices are issued to the company with VAT.
* **Refunds**: any issue — contact us. If something didn't work properly (technical issue, a deliverability bug on our side), we refund credits without questions.

## Tracking Usage

In the Dashboard, **Settings → Billing → Usage**, you'll see:

* Credits balance (how many remain)
* Used this month
* Used by campaign (what consumed the most)
* 30-day trend graph

Tip: if usage doesn't match expectations — check at campaign level. Sometimes an over-broad ICP burns research credits without a great reply rate, and tightening the ICP fixes it.

## Common Billing Issues

| Issue                            | Cause                   | Fix                                                          |
| -------------------------------- | ----------------------- | ------------------------------------------------------------ |
| "Insufficient credits" at launch | Out of credits          | Settings → Billing → Top Up                                  |
| Double charge                    | Retry on failed payment | Check Invoices; if truly duplicated — auto refund within 24h |
| No tax invoice received          | Company details missing | Settings → Billing → Company Info → fill in and update       |

## What's Next

* [Quick Start](/en/quick-start) — if you haven't started yet, start here
* [Your First Campaign](/en/first-campaign) — understand how many credits each campaign will consume

<Card title="Start with 100 credits" href="https://mailer.linkaiil.com">
  Sign up to Link AI and get your first 100 credits for \$19
</Card>