Pricing

Sellers set their own prices. The marketplace routes buyers to the cheapest available seller.

Pricing Modes

Per-Token Pricing

Seller specifies price per 1M tokens for input and output separately (in microdollars).

{ "price_input_per_1m": 12.00, "price_output_per_1m": 48.00 }

Cost Multiplier

Seller specifies a fraction of the model's reference price. Useful for "I'll undercut the market by X%."

{ "pricing_mode": "cost_multiplier", "cost_multiplier": 0.50 }

0.50 = buyer pays 50% of the reference price. Reference prices come from PROVIDER_PRICES in the codebase.

Cost Calculation

For each request:

base_cost = (input_tokens / 1M × price_input_per_1M)
          + (output_tokens / 1M × price_output_per_1M)
buyer_cost = base_cost × fee_multiplier / 10000 + flat_fee
seller_earns = base_cost

Fee Multiplier

Stored on-chain in the Settlement contract in basis points. Transparent and auditable.

Minimum value: 10000 (1.0x). Sub-1x subsidy mode is not supported in SettlementV2.

Price Threshold

Buyers can set a maximum price per 1M tokens via header:

-H "X-Max-Price-Per-1M: 8.0"

Or in the request body: "max_price_per_1m": 8.0

Requests skip sellers whose estimated cost exceeds this threshold.

Provider Pricing Discovery

When sellers connect their API key, the marketplace auto-detects pricing from the provider's /models endpoint. Four parsing layers handle all known provider formats:

1. Venice format — model_spec.pricing with nested {usd, diem}

2. OpenRouter format — pricing.prompt / pricing.completion as per-token strings

3. Generic format — pricing.input / pricing.output as numbers ($/1M tokens)

4. Reference fallback — static reference prices for known models when provider returns none