Pricing
Zero protocol fees. You only pay gas.
The decentralised Somnia platform is a set of protocols, not a service with a price list. Nothing on it charges a protocol fee. Every transaction pays network gas in SOMI, at a base price set by the network, with automatic discounts for sustained use.
- 0 bps
- Protocol fee
- On every product on the decentralised platform
- Somnia protocols
- 6 gwei
- Base gas price
- Network floor: 6 gwei
- Somnia mainnet RPC, live
- $0.0027
- Cost of a spot trade
- 2,761,779 gas, median of recent trades
- Mainnet receipts, live
- Up to 90%
- Sustained-use discount
- Automatic, for heavy senders
- GasDiscounts contract
The model
No price list, by design
Zero protocol fees
Somnia Markets, the Somnia Oracle, Somnia Agents, Reactivity and the rest of the decentralised platform are protocols, not subscriptions. None of them takes a fee on your activity.
No keys, tiers or seats
There are no API plans, rate tiers or licences to buy. Anyone can call any contract, from any language, on the same terms.
You pay gas, in SOMI
Each transaction pays network gas at a single base price set by the network. A trade costs a fraction of a cent, and heavy users pay up to 90% less.
Venues set their own fees
Venues and applications built on the platform decide what, if anything, to charge their own users. Gas can be sponsored, so users don't need to hold SOMI.
Learn moreWhat things cost
The cost of common actions, live
Gas used comes from real mainnet transactions. Costs use the current base gas price of 6 gwei and a SOMI price of $0.1600, at each discount tier.
| Action | Gas used | Standard | 70% discount | 90% discount |
|---|---|---|---|---|
| Send SOMITo an existing accountSomnia docs | 21,000 | $0.0000200.00013 SOMI | $0.00000600.000038 SOMI | $0.00000200.000013 SOMI |
| Send SOMI to a new accountCreates the accountSomnia docs | 421,000 | $0.00040.0025 SOMI | $0.00010.00076 SOMI | $0.0000400.00025 SOMI |
| Place a limit orderA spot order that rests on the bookMedian of 9 recent mainnet orders | 1,686,572 | $0.00160.0101 SOMI | $0.00050.0030 SOMI | $0.00020.0010 SOMI |
| Spot tradeAn order that fills against the bookMedian of 14 recent mainnet trades | 2,761,779 | $0.00270.0166 SOMI | $0.00080.0050 SOMI | $0.00030.0017 SOMI |
| Event contract tradeBuying or selling an outcomeMedian of 16 recent mainnet trades | 5,126,080 | $0.00490.0308 SOMI | $0.00150.0092 SOMI | $0.00050.0031 SOMI |
Gas varies with what a transaction touches: matching several orders or reading uncached state uses more. Use eth_estimateGas for exact figures.
Sustained-use discounts
The more you use the network, the less each unit costs
Accounts that consistently use a lot of gas pay a lower base gas price, automatically. Usage is measured per paying account over a rolling window of about 80 minutes, and a newly earned discount applies from the next epoch, roughly five minutes later. There is nothing to enable or claim.
- Measured in gas, not transactions, including the contracts you call
- Applies to the base price only, never to the gas an operation uses
- Shown in every receipt's effective gas price
| Gas over the window | Discount | Base price at 6 gwei |
|---|---|---|
| Below 900M gas— | 0% | 6.0 gwei |
| 900M gas or more≈ 100 SOMI of gas a day | 70% | 1.8 gwei |
| 4B gas or more≈ 430 SOMI of gas a day | 90% | 0.6 gwei |
Daily figures are the gas needed to stay in each tier, valued at the undiscounted price.
How gas is priced
Priced by what the network actually does
Most EVM operations cost exactly what they do on Ethereum. Where Somnia differs, gas follows the real cost to every node.
fee = gas used × effective gas price
effective gas price =
base gas price × (1 − discount)
+ priority fee
base gas price ≥ 6 gwei (network floor)
priority fee = 0 for ordinary transactions- Reading uncached state
- 1,000,000 gas
- Recently accessed state has no extra charge
- Creating a storage slot
- 200,000 gas
- State growth costs every node
- Creating an account
- 400,000 gas
- For example, sending SOMI to a new address
- Event log
- 3,200 + 5,120 per topic
- Plus 160 gas per data byte
Somnia Agents & LLM Inference
Pay the validators who run your request
An agent request carries a deposit that pays each validator in the subcommittee, plus a small floor. Unspent deposit is refunded, and the platform contract takes no fee.
JSON API request
0.03 SOMI
per validator
0.12 SOMI deposit with the default subcommittee of 3 ($0.019)
LLM Inference
0.07 SOMI
per validator
0.24 SOMI deposit with the default subcommittee of 3 ($0.038)
LLM Parse Website
0.10 SOMI
per validator
0.33 SOMI deposit with the default subcommittee of 3 ($0.053)
Off-chain services
Services are scoped per engagement
Prophecy Pulse, Derivative Design & Liquidity and Managed Venues are human-led services from the Somnia team. They are priced to the scope of each engagement.
FAQ
Pricing questions
Do my users need to hold SOMI?
Today, yes. Native gas sponsorship, coming soon, lets a venue or wallet cover its users' gas, so they trade without first acquiring SOMI. Session keys remove the prompts in between.
Gas sponsorship in the docsWhy does the same call sometimes cost more gas?
Somnia prices state access by its real latency. Reading a value no transaction has touched recently costs 1,000,000 gas, while recently accessed state carries no extra charge. Busy contracts, like an active order book, are usually cached.
Gas differences to Ethereum in the docsCan the gas price rise?
Only under sustained congestion. Validators vote the base price up when execution falls behind and straight back to the 6 gwei floor when it catches up. It can never exceed 100,000 gwei.
Congestion pricing in the docsHow do I get a sustained-use discount?
There is nothing to enable or claim. Accounts that use enough gas over a rolling window of about 80 minutes are discounted automatically from the next epoch. The discount appears in each receipt's effective gas price.
Sustained-use discounts in the docsWhat do Somnia Agents and LLM Inference cost?
Each request carries a small deposit that pays the validators who run it, priced per validator by agent type. Unspent deposit is refunded. Gas for the transaction is charged as normal.
Agent pricing in the docsBuild without a price list
Deploy and trade on the same terms as everyone else: protocols with no fees, and gas priced by the network.