AI generation API billing and credits

Every model has a per-generation credit cost, shown on its catalog page and in GET /v1/models (creditsPerGeneration). The estimated credits for a job are reserved when it is created and the actual credits are settled on completion.

• Plan credits — included with monthly plans (e.g. Starter: 10,000 credits/mo), lifetime plans (50,000 total), and one-time packs (e.g. Trail Pack: 3000 credits valid 7 days, one pack per week). Unused plan credits expire at the end of the billing period or pack validity window.
• Wallet credits — pay-as-you-go, no subscription. Deposits start at $10; credit value is fixed at 1 credit = $0.01.
• Credit balance and ledger are visible at GET /v1/workspaces/:workspaceId/credits.

Monthly plans renew automatically and include seats (active members), concurrent job limits, storage, and queue priority. See the live pricing page for current plans: free.ind.in/pricing. Plan entitlements are returned in GET /v1/plans and enforced per workspace.

The wallet is a prepaid balance for workspaces without a subscription (or as an overflow). Deposit with POST /v1/wallet/top-ups:

curl -X POST https://free.ind.in/v1/wallet/top-ups \
  -H "Authorization: Bearer fi_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "workspaceId": "<workspace-id>",
    "amountUsd": 25
  }'

• Minimum deposit: $10. Deposits are processed through the payment provider and credited on confirmation.
• Balance: GET /v1/wallet; history: GET /v1/wallet/transactions and GET /v1/wallet/deposits.
• Wallet payments require a successful deposit before generating (wallet_pending_minimum otherwise).

By default generations bill plan credits. Pass "paymentMode": "wallet" in POST /v1/generations to pay from the wallet instead:

{
  "workspaceId": "<workspace-id>",
  "modelId": "<model-id>",
  "paymentMode": "wallet",
  "params": { "mode": "text_to_image", "prompt": "a red fox in snow" }
}

The estimated charge (credits × $0.01) is reserved before the job starts and settled on completion. If the reserved amount can't be covered, the request fails with wallet_insufficient_balance.

Track spend per workspace with GET /v1/usage — credits used, customer cost, generations, and output bytes, filterable by date range. Subscriptions and payments are managed via POST /v1/billing/checkout, POST /v1/billing/portal, and POST /v1/billing/cancel (dashboard-first; see API reference).

• Pricing
• Code examples — wallet-backed generation