How billing works
NAWA uses a prepaid credit system.- 1,000 credits = $1.00 USD
- Buy credit packs, and each API call deducts credits from your balance
- Free and paid tiers run independently — free key requests never consume paid credits
Free tier
Free tier
- 100 lifetime requests per free key (
nawa_test_sk_) - 14-day key expiry
- No credit card required
- Uses real AI models — same accuracy as paid
- Rate limit: 10 requests/minute
- Free endpoints (health, usage, analytics, comments, feedback) do not count toward the 100 limit
- When exhausted: create a new free key or purchase credits for a live key
Credit packs
| Pack | Price | Credits | Best for |
|---|---|---|---|
| Starter | $25 | 25,000 | Prototyping and small projects |
| Builder | $50 | 50,000 | Growing applications |
| Scale | $100 | 100,000 | Production workloads |
| Enterprise | $500 | 500,000 | High-volume usage |
Per-endpoint pricing
| Endpoint | Cost per call | Credits deducted |
|---|---|---|
POST /v1/classify | $0.006 | 6 credits |
POST /v1/translate | $0.005 | 5 credits |
POST /v1/detect | $0.002 | 2 credits |
POST /v1/moderate | $0.004 | 4 credits |
POST /v1/rubric/classify | $0.003 | 3 credits |
POST /v1/comments/:id/reply | $0.008 | 8 credits |
POST /v1/report (Basic) | $0.50 | 500 credits |
POST /v1/report (Pro) | $1.50 | 1,500 credits |
POST /v1/feedback | Free | 0 credits |
GET /v1/comments | Free | 0 credits |
GET /v1/analytics | Free | 0 credits |
GET /v1/health | Free | 0 credits |
GET /v1/usage | Free | 0 credits |
Balance headers
Every API response includes balance information in headers:| Header | Description | Example |
|---|---|---|
X-NAWA-Balance | Current credit balance in USD | 12.45 |
X-NAWA-Balance-Warning | Warning when balance is low | low_balance |
X-NAWA-Cache | Cache status | HIT or MISS |
X-Request-Id | Unique request identifier | req_nw_abc123 |
The
X-NAWA-Balance-Warning header appears when your balance drops below $5.00 (5,000 credits).What happens when credits run out
When your credit balance reaches 0:- All paid endpoints return
402 insufficient_credits - Free endpoints continue to work normally
- Free keys (
nawa_test_sk_) are unaffected — they use their own 100-request pool - Purchase any credit pack to restore access immediately
Cost estimation
| Endpoint | 1,000 calls | 10,000 calls | 100,000 calls |
|---|---|---|---|
/v1/classify | $6 | $60 | $600 |
/v1/translate | $5 | $50 | $500 |
/v1/detect | $2 | $20 | $200 |
/v1/moderate | $4 | $40 | $400 |
/v1/rubric/classify | $3 | $30 | $300 |
/v1/comments/:id/reply | $8 | $80 | $800 |
Refund policy
Credit purchases are non-refundable once credits have been consumed. For billing issues or accidental purchases, contact support@trynawa.com within 14 days of purchase for review. Refunds for unused credits are processed to the original payment method within 5-10 business days.FAQ
Do free key requests consume my paid credits?
Do free key requests consume my paid credits?
No. Free keys (
nawa_test_sk_) have their own pool of 100 lifetime requests. Paid credits are only consumed by live keys (nawa_live_sk_).Do credits expire?
Do credits expire?
No. Credits never expire. Use them at your own pace.
Can I get a refund?
Can I get a refund?
Unused credits can be refunded within 14 days. Consumed credits are non-refundable. Contact support@trynawa.com.
What happens if I hit a cached result?
What happens if I hit a cached result?
Semantic cache hits are free. You are not charged when
X-NAWA-Cache returns HIT.How do I check my balance programmatically?
How do I check my balance programmatically?
Every API response includes the
X-NAWA-Balance header with your current balance in USD. Monitor this in your application to avoid service interruption.