InferenceCredits & Pricing

Credits & Pricing

Pricing model

Credential typeMarkup
Platform credentials20% above provider list price
BYOK0% - provider list price, no markup
SpendAuthOperator-set prices (shown at request time)

The 20% platform markup on non-BYOK requests funds operator payouts and platform infrastructure. Operators earn a share of every request routed through them.

Credits

Credits are denominated in USD. Purchase via Stripe or receive as part of a subscription plan.

Check your balance:

curl -H "Authorization: Bearer sk-tan-YOUR_KEY" \
  https://router.tangle.tools/v1/credits
{
  "data": {
    "total_credits": 100.0,
    "total_usage": 4.5
  }
}

total_credits is every credit ever granted (balance plus lifetime spend) and total_usage is lifetime consumption, so your remaining balance is total_credits - total_usage.

Cost per request

Each request is charged based on tokens:

cost = (input_tokens × input_price) + (output_tokens × output_price)

Pricing varies by model. Check per-model pricing at GET /api/models or in the X-Tangle-Price-Input / X-Tangle-Price-Output response headers.

Pricing headers on every response

Every response includes pricing headers so you know the cost before it hits your balance:

X-Tangle-Price-Input: 0.000003      # USD per input token
X-Tangle-Price-Output: 0.000015     # USD per output token

Look up detailed billing for any request via GET /v1/generation.

Rate LimitingFree Tier