Credits
1,000 credits = $1. Credits are prepaid and never expire. The numbers below are backcrew’s current defaults.
What costs credits
Section titled “What costs credits”| What | Cost |
|---|---|
| An agent request | The model’s tokens at its price (shown in the Builder) - if the code calls more than one model, each call at the price of the model it used - rounded up to a whole credit, and at least 3 credits. |
| A knowledge search | 2 credits each, added to the request. |
| A policy check | 1 credit per model call the agent’s policy checks, added to the request. |
| A quality check | 2 credits per check scored - only if you turn quality checks on. |
| A test case | Its answer, like any agent request, plus 2 credits for the judge’s rating if it’s judged by a rubric. Only when you run them. |
| The Builder assistant | The tokens it uses, at least 3 credits. |
Messages on WhatsApp cost credits like any request. Meta’s own WhatsApp fees, if any, are billed by Meta to your WhatsApp Business Account, not in credits.
Everything else is free: deploying, the code review before each deploy, hosting, tools, memory, knowledge storage and website crawls, creating policies.
Examples
Section titled “Examples”| Request | Charged |
|---|---|
| Claude Haiku 4.5, 2,000 tokens in, 500 out | 8 credits ($0.008) |
| The same, plus one knowledge search | 10 credits |
| A very short request | 3 credits (the minimum) |
| Quality checks: 200 answers a day, 10% checked, 4 checks each | about 160 credits a day |
When a request isn’t charged
Section titled “When a request isn’t charged”- It failed with an error.
- The widget or Telegram answered a
/start, a non-text message, or the chat was switched off. - A quality-check judge returned no score.
A request that runs past the maximum time (5 minutes) is stopped and charged the minimum.