Pricing

Darkfibre is free to use. There are no monthly subscriptions, no tiered plans and no paywalls. You get full access to the platform from day one.

We charge a 0.50% base fee on successful trades only, and it gets cheaper with volume — see fee tiers below. The fee is calculated from the trade estimate and added directly into the transaction before signing. If your trade doesn’t land, you don’t pay.

What you get

Full access to everything, no restrictions:

Live data streaming — Trades streamed straight from the Solana network, decoded in real time and enriched with price, market cap and bonding curve progress.
Transaction building — Ready-to-sign transactions built from simple parameters: token, amount, slippage and priority.
Priority submission — Transactions sent through infrastructure optimized for fastest block inclusion.
SDK and examples — A TypeScript SDK that handles the heavy lifting, with working examples to get you trading in minutes.

Fee tiers

Your fee tier is based on your 30-day rolling trade volume. As your volume grows, you automatically move to a lower fee — no action needed.

30d Volume	Fee
< 1,000 SOL	0.50% (50 bps)
≥ 1,000 SOL	0.45% (45 bps)
≥ 10,000 SOL	0.35% (35 bps)
≥ 50,000 SOL	0.25% (25 bps)
≥ 100,000 SOL	0.20% (20 bps)
≥ 250,000 SOL	Custom

Tiers are recomputed every night at 00:00 UTC and applied to your profile automatically. You can check your current fee and volume via GET /v1/auth/profile.

Additional costs

On top of the platform fee, every trade on Solana incurs standard network costs that are outside of our control. These go directly to the network and exchanges.

Network fees — Base Solana transaction fees paid to validators.
DEX fees — Swap fees charged by the decentralized exchange executing your trade.
Priority fees — Optional fees to increase transaction priority during network congestion.

These are standard Solana costs and apply to any on-chain transaction, regardless of the platform you use.