Fees and pricing
The same solver-aligned Ophis pricing on every supported chain.
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The short version: on every supported chain, Ophis charges 1 bp plus 80% of reference-quote improvement on volatile pairs (99 bps cap), or 50% on stable pairs (20 bps cap). CoW-hosted chains additionally pay CoW Protocol's upstream fees.
| Path | Ophis-operated | CoW-hosted |
|---|---|---|
| Swap app | 1 bp + 80% improvement (99 bps cap); 50%/20 bps cap for stables | Same 1 bp + capped improvement policy |
| @ophis/sdk integrations | Same sovereign model | Same all-chain policy via CIP-75 appData |
| MCP server (keyless) | Same sovereign model | Same all-chain policy via CIP-75 appData |
| Intent API and MCP calls themselves | Free | Free |
What does Ophis charge?
Every supported chain pays a 1 bp Ophis base. Ophis also retains 80% of reference-quote improvement on volatile pairs, capped at 99 bps of volume, or 50% on stable pairs, capped at 20 bps. CoW-hosted chains additionally pay CoW Protocol fees upstream.
What is the all-in cost on each chain?
On every supported chain, the minimum is 1 bp and the maximum Ophis charge is 100 bps on volatile pairs or 21 bps on stable pairs. On CoW-hosted chains, CoW Protocol adds its own fees on top.
Does Ophis take a cut of surplus?
Yes, on every supported chain: 80% on volatile pairs or 50% on stable pairs, subject to the caps. The measurement is improvement over the reference quote, not the user's slippage limit.
What do integrators pay, and what can they charge?
Integrations pay the same 1 bp base plus capped improvement capture on every chain. Integrators can still charge an onboarded own-fee of up to 90 bps on top; hosted settlement reserves a 190 bps aggregate ceiling.
Are the APIs free?
Yes. The public Intent API and the MCP server are free to call. The Intent API is rate-limited to 30 requests per minute per IP; partner-tier rate limits are reviewed case by case.
Are there rebates?
Yes. Volume rebate tiers (10% to 50% by rolling 30-day volume) weight your share of a monthly WETH rebate pool, and a referral layer pays 8% or 12% of the verified base fee Ophis keeps, monthly in WETH, on-chain.
Worked example
On $100,000 of sovereign volatile volume with 20 bps of improvement, Ophis receives $10 base plus $160 of improvement capture: $170 total. On a stable pair with the same improvement, the stable capture is 10 bps, producing $110 total; the 20 bps cap does not bind until improvement reaches 40 bps. Hosted chains apply the same Ophis base and improvement policy, with CoW Protocol's separate upstream fees added on top.
Sources and detail
Read why Ophis uses solver-aligned pricing for the rationale behind the base fee and capped improvement capture.
Chain-by-chain fee detail lives at docs.ophis.fi/fees, integrator terms at docs.ophis.fi/partners and business.ophis.fi, rebate mechanics at docs.ophis.fi/affiliate, and CoW Protocol's own fee schedule at docs.cow.fi. See also supported chains for which chains are Ophis-operated.