unisat-dev-docs

Fractal OpenAPI Inscribe Service Fee Rules: July 22 – Sep 30, 2024 Event

Note: This document describes only the service fee (platform fee) for inscribe orders. The total amount to pay for an order also includes the minimum UTXO required for all inscriptions (minUtxoTotal), the estimated miner fee (networkSats), and any developer fee (devFee). For the full payment formula, see the Inscribe FAQ.

Event Scope

Network: Fractal
Protocols: Ordinals (including standard inscriptions, BRC20, Runes)
Event Period: July 22, 2024 – September 30, 2024

Minting Quantity Limit (During Event)

Maximum inscriptions per order: 1000 (increased from 100)

File and Network Fee Limits

Maximum file size per inscription: 390 KB
Maximum network fee rate: 10,000 sat/vB

Service Fee Rules (Event)

For n ≤ 6: 100,000 sats per inscription
For n > 6:
Fee = 0.005 FB + n × 0.00025 FB, capped at the fee for 500 inscriptions
(i.e., maximum fee is 0.13 FB per order)

Notes:

1 FB = 100,000,000 sats

The fee is always rounded up to the nearest satoshi

For orders above 500 inscriptions, the fee is capped at 0.13 FB

Fee Calculation Formula

n ≤ 6:
Fee = n × 100,000 sats
n > 6:
Fee = 0.005 FB + min(n, 500) × 0.00025 FB

Fee Examples

Quantity	Fee (FB)	Fee (sats)	Notes
6	0.006	600,000	Standard rate
10	0.0075	750,000	Event discount
100	0.03	3,000,000	Event discount
500	0.13	13,000,000	Event discount, cap
1000	0.13	13,000,000	Capped at 500 limit

Additional Notes

No client type distinction: Web and App use the same rule
No special discount for high-point users
Points rule unchanged: 1 point per 100 inscriptions
All fees are settled in sats, rounded up

Summary:
This document describes only the service fee (platform fee) for inscribe orders during the July 22 – Sep 30, 2024 event period. The total amount to pay also includes minUtxoTotal, networkSats, and devFee. For the full payment formula, see the Inscribe FAQ. After the event, standard rules will apply (see Standard Service Fee Rules documentation).