# Technical **URL:** https://forum.cow.fi/c/tech-spells/2.md [Latest](https://forum.cow.fi/latest.md) · [Categories](https://forum.cow.fi/categories.md) · [Tags](https://forum.cow.fi/tags.md) --- ## [Consistency metric v2.1: in-market orders only](https://forum.cow.fi/t/consistency-metric-v2-1-in-market-orders-only/3577)
**Author:** [@felixhenneke](https://forum.cow.fi/u/felixhenneke)\ **Replies:** 5\ **Last updated:** [September 27, 2026, 6:36am UTC](https://forum.cow.fi/t/consistency-metric-v2-1-in-market-orders-only/3577 "2026-09-27T06:36:44Z")
The metric for consistency rewards will be changed to only reward orders which are in-market at order creation. Orders which are out-of-market will not contribute to consistency rewards but still count towards performanc… --- ## [Measuring solver readiness before production: a v0 proposal](https://forum.cow.fi/t/measuring-solver-readiness-before-production-a-v0-proposal/3572)
**Author:** [@kaisersolver](https://forum.cow.fi/u/kaisersolver)\ **Replies:** 2\ **Last updated:** [September 26, 2026, 12:49pm UTC](https://forum.cow.fi/t/measuring-solver-readiness-before-production-a-v0-proposal/3572 "2026-09-26T12:49:01Z")
CoW’s consistency metric measures reliability from production data: wins, settlements, bid quality. That means it’s zero for a solver that isn’t live yet, and on most chains there’s no shadow environment to generate wins… --- ## [Ring feasibility, zombie orders, and why 23/23 profitable rings turned out to be 0/14](https://forum.cow.fi/t/ring-feasibility-zombie-orders-and-why-23-23-profitable-rings-turned-out-to-be-0-14/3511)
**Author:** [@Mr\_Robot](https://forum.cow.fi/u/Mr_Robot)\ **Replies:** 2\ **Last updated:** [September 7, 2026, 4:33pm UTC](https://forum.cow.fi/t/ring-feasibility-zombie-orders-and-why-23-23-profitable-rings-turned-out-to-be-0-14/3511 "2026-09-07T16:33:15Z")
Measuring the unexploited CoW/ring surface: a negative result (and two bugs I found in my own analysis) I’m an independent developer building toward the solver competition. Before writing a search algorithm, I wanted to … --- ## [cow-backtester: offline backtesting and A/B testing for solvers](https://forum.cow.fi/t/cow-backtester-offline-backtesting-and-a-b-testing-for-solvers/3529)
**Author:** [@kaisersolver](https://forum.cow.fi/u/kaisersolver)\ **Replies:** 0\ **Last updated:** [August 7, 2026, 9:50pm UTC](https://forum.cow.fi/t/cow-backtester-offline-backtesting-and-a-b-testing-for-solvers/3529 "2026-08-07T21:50:52Z")
Hi all, we run kaisersolver on Arbitrum and Base. Something we kept running into as a small solver team: there is no way to test a solver against real auctions without going live. Shadow mode needs onboarding and runs o… --- ## [\[Resolved\] CoW API not working (/quote)](https://forum.cow.fi/t/resolved-cow-api-not-working-quote/3513)
**Author:** [@duahxn](https://forum.cow.fi/u/duahxn)\ **Replies:** 7\ **Last updated:** [July 27, 2026, 5:00pm UTC](https://forum.cow.fi/t/resolved-cow-api-not-working-quote/3513 "2026-07-27T17:00:28Z")
Hi, I believe I have been rate-limited. I am building my custom 1min chart for popular assets like BTC, ETH, USDC etc. Sample request: \`\`\` curl -s -X POST \`\`https://api.cow.fi/base/api/v1/quote\`\` -H "Content-Type: a… --- ## [ BCoW pool not indexed by autopilot on mainnet — missing factory→helper config](https://forum.cow.fi/t/bcow-pool-not-indexed-by-autopilot-on-mainnet-missing-factory-helper-config/3486)
**Author:** [@ratelhb](https://forum.cow.fi/u/ratelhb)\ **Replies:** 0\ **Last updated:** [July 12, 2026, 12:06pm UTC](https://forum.cow.fi/t/bcow-pool-not-indexed-by-autopilot-on-mainnet-missing-factory-helper-config/3486 "2026-07-12T12:06:54Z")
We deployed a BCoW pool via the Balancer CoW AMM factory (0xf76c421bAb7df8548604E60deCCcE50477C10462) on Ethereum mainnet \>48 hours ago. The pool was finalized successfully, but the autopilot never registered it. Pool: 0… --- ## [Consistency metric v2](https://forum.cow.fi/t/consistency-metric-v2/3474)
**Author:** [@felixhenneke](https://forum.cow.fi/u/felixhenneke)\ **Replies:** 0\ **Last updated:** [June 23, 2026, 3:24pm UTC](https://forum.cow.fi/t/consistency-metric-v2/3474 "2026-06-23T15:24:12Z")
Starting on June 30., we are going to use a new metric for computing consistency rewards. The new metric will include quality of bids and settlement success rates. It replaces the current metric which just counts bids. T… --- ## [Baseline: Liquidity Source Integration Proposal](https://forum.cow.fi/t/baseline-liquidity-source-integration-proposal/3472)
**Author:** [@zeez](https://forum.cow.fi/u/zeez)\ **Replies:** 0\ **Last updated:** [June 17, 2026, 2:31pm UTC](https://forum.cow.fi/t/baseline-liquidity-source-integration-proposal/3472 "2026-06-17T14:31:01Z")
Liquidity Source Integration Proposal Title Baseline Integration Author Discord: 0xzx Telegram: @zaqk1 Email: zeezdev0@gmail.com Simple Summary Baseline Mercury is an on-chain power-law AMM. Each market is a single-si… --- ## [Delta Sync: Implemented Auction Delta Sync (Issue #4207)](https://forum.cow.fi/t/delta-sync-implemented-auction-delta-sync-issue-4207/3413)
**Author:** [@ashleychandy](https://forum.cow.fi/u/ashleychandy)\ **Replies:** 3\ **Last updated:** [May 27, 2026, 12:43pm UTC](https://forum.cow.fi/t/delta-sync-implemented-auction-delta-sync-issue-4207/3413 "2026-05-27T12:43:40Z")
Background Every auction cycle, the autopilot was broadcasting a full orderbook snapshot to every connected solver. On mainnet, over 90% of that payload was identical between consecutive auctions — mostly static limit or… --- ## [Looking for feed access - endpoint and auth details!](https://forum.cow.fi/t/looking-for-feed-access-endpoint-and-auth-details/3401)
**Author:** [@Ubiquites](https://forum.cow.fi/u/Ubiquites)\ **Replies:** 1\ **Last updated:** [March 31, 2026, 10:21am UTC](https://forum.cow.fi/t/looking-for-feed-access-endpoint-and-auth-details/3401 "2026-03-31T10:21:37Z")
Hey team! I’m interested in integrating CoW into my an intent-feed adapter and want to poll the correct live orderbook / auction source. Would you know where I could get: the exact endpoint you would want me want to … --- ## [Second price auction is broken for small orders since CIP-74](https://forum.cow.fi/t/second-price-auction-is-broken-for-small-orders-since-cip-74/3317)
**Author:** [@tokenwood](https://forum.cow.fi/u/tokenwood)\ **Replies:** 25\ **Last updated:** [February 19, 2026, 5:40pm UTC](https://forum.cow.fi/t/second-price-auction-is-broken-for-small-orders-since-cip-74/3317 "2026-02-19T17:40:47Z")
TLDR; CIP-74 changed solver reward cap per order from 0.01 eth ($40) to the protocol fee (2 basis points) to remain profitable post CIP-74, solvers must introduce fees to break even these fees will get reflected in pri… --- ## [How penalties affect bidding of solvers](https://forum.cow.fi/t/how-penalties-affect-bidding-of-solvers/3341)
**Author:** [@felixhenneke](https://forum.cow.fi/u/felixhenneke)\ **Replies:** 1\ **Last updated:** [February 5, 2026, 6:41pm UTC](https://forum.cow.fi/t/how-penalties-affect-bidding-of-solvers/3341 "2026-02-05T18:41:43Z")
In this post I will outline how bidding behavior of solvers is influenced by penalties. The main take-away is bids should be discounted by some term depending on revert risk. The topic of penalties has been raised on t… --- ## [Thoughts about second price auction in case of reverts](https://forum.cow.fi/t/thoughts-about-second-price-auction-in-case-of-reverts/3309)
**Author:** [@marco\_at\_quasi](https://forum.cow.fi/u/marco_at_quasi)\ **Replies:** 4\ **Last updated:** [January 20, 2026, 10:41pm UTC](https://forum.cow.fi/t/thoughts-about-second-price-auction-in-case-of-reverts/3309 "2026-01-20T22:41:38Z")
Problem The current second price auction used in cow protocol rewards the winner of the auction a function of the difference between its score, and the second best score. There’s an asymmetry here though, while the best … --- ## [Clear: Liquidity Source Integration Proposal](https://forum.cow.fi/t/clear-liquidity-source-integration-proposal/3293)
**Author:** [@Figue](https://forum.cow.fi/u/Figue)\ **Replies:** 1\ **Last updated:** [December 9, 2025, 4:18pm UTC](https://forum.cow.fi/t/clear-liquidity-source-integration-proposal/3293 "2025-12-09T16:18:41Z")
Trevee Clear Integration Author \[Beg1 (Trevee, Data Analyst), Figue (Trevee, co-founder), Mason Lok (Trevee, Developer)\] Contact: romain @ mithras . xyz Simple Summary Clear protocol is a stablecoin focused liquidity s… --- ## [EBBO violation report for Rizzsolver on Mainnet](https://forum.cow.fi/t/ebbo-violation-report-for-rizzsolver-on-mainnet/3274)
**Author:** [@doleyizufudevon\_1523](https://forum.cow.fi/u/doleyizufudevon_1523)\ **Replies:** 4\ **Last updated:** [December 1, 2025, 3:19pm UTC](https://forum.cow.fi/t/ebbo-violation-report-for-rizzsolver-on-mainnet/3274 "2025-12-01T15:19:21Z")
Reporting EBBO violation. The execution price (excl. fee) was $2,739.53, while the market price at submission was $2,731.99 ($2,731.64 at T-5s). This results in ~28.8 bps slippage, which is excessive for a $99k trade si… --- ## [Decentralising CoW solver auctions using pod network](https://forum.cow.fi/t/decentralising-cow-solver-auctions-using-pod-network/3173)
**Author:** [@\_shresth](https://forum.cow.fi/u/_shresth)\ **Replies:** 6\ **Last updated:** [September 16, 2025, 8:59am UTC](https://forum.cow.fi/t/decentralising-cow-solver-auctions-using-pod-network/3173 "2025-09-16T08:59:48Z")
Cow protocol currently conducts an off-chain auction, where external parties, known as solvers, apply different strategies to propose competing solutions. Currently, the autopilot service is responsible for maintaining … --- ## [frxUSD Redemption & Minting Integration Request](https://forum.cow.fi/t/frxusd-redemption-minting-integration-request/3138)
**Author:** [@denett](https://forum.cow.fi/u/denett)\ **Replies:** 2\ **Last updated:** [August 19, 2025, 4:13pm UTC](https://forum.cow.fi/t/frxusd-redemption-minting-integration-request/3138 "2025-08-19T16:13:35Z")
Title Integration of frxUSD ↔ USDC and USTB Redemption & Minting via ERC‑4626‑Compatible Custodian and RWA Redemption Paths on the Ethereum chain. Author Frax team Contact via telegram: @denett4 Simple Summary This … --- ## [Blackhole: Liquidity Source Integration Proposal](https://forum.cow.fi/t/blackhole-liquidity-source-integration-proposal/3120)
**Author:** [@0xThanos](https://forum.cow.fi/u/0xThanos)\ **Replies:** 0\ **Last updated:** [July 25, 2025, 1:18pm UTC](https://forum.cow.fi/t/blackhole-liquidity-source-integration-proposal/3120 "2025-07-25T13:18:37Z")
Author Discord: 0xthanos2025 Email: kenneth@blackhole.xyz Summary Blackhole is a next-generation ve3,3 DEX built on the Avalanche C-Chain, optimized for deep liquidity, sustainable emissions, and long-term incentive al… --- ## [YO Protocol Liquidity Source Integration Proposal](https://forum.cow.fi/t/yo-protocol-liquidity-source-integration-proposal/3072)
**Author:** [@0scaronchain](https://forum.cow.fi/u/0scaronchain)\ **Replies:** 0\ **Last updated:** [June 27, 2025, 8:41pm UTC](https://forum.cow.fi/t/yo-protocol-liquidity-source-integration-proposal/3072 "2025-06-27T20:41:55Z")
Title YO Protocol integration Author Oscar, Head of Product at YO @stechastic on Telegram o@yolabs.xyz Simple Summary YO protocol is a multichain yield optimizer, allowing users to farm yield from the best DeFi proto… --- ## [Universal: Liquidity Source Integration Proposal](https://forum.cow.fi/t/universal-liquidity-source-integration-proposal/3040)
**Author:** [@patrick.mckelvy](https://forum.cow.fi/u/patrick.mckelvy)\ **Replies:** 0\ **Last updated:** [June 3, 2025, 8:48pm UTC](https://forum.cow.fi/t/universal-liquidity-source-integration-proposal/3040 "2025-06-03T20:48:36Z")
Title Universal Merchant Author Patrick McKelvy tg: @pmckelvy1 (preferred) patrick.mckelvy@reserve.org Simple Summary Universal is a wrapped asset protocol designed to enable trading for any token, on any chain. Thin… --- ## [I cannot use the API, why am I getting this error?](https://forum.cow.fi/t/i-cannot-use-the-api-why-am-i-getting-this-error/3035)
**Author:** [@transnitria2025](https://forum.cow.fi/u/transnitria2025)\ **Replies:** 1\ **Last updated:** [June 3, 2025, 9:49am UTC](https://forum.cow.fi/t/i-cannot-use-the-api-why-am-i-getting-this-error/3035 "2025-06-03T09:49:41Z")
curl -X ‘GET’ ‘https://raw.githubusercontent.com/quote?sellToken=0x6810e776880c02933d47db1b9fc05908e5386b96&buyToken=0x6982508145454Ce325dDbE47a25d4ec3d2311933&kind=buy&amount=1234567890&deadline=2025-05-02T18%3A35%3A1… --- ## [Reserve Index DTFs: Liquidity Source Integration Proposal](https://forum.cow.fi/t/reserve-index-dtfs-liquidity-source-integration-proposal/3038)
**Author:** [@patrick.mckelvy](https://forum.cow.fi/u/patrick.mckelvy)\ **Replies:** 0\ **Last updated:** [June 3, 2025, 6:27am UTC](https://forum.cow.fi/t/reserve-index-dtfs-liquidity-source-integration-proposal/3038 "2025-06-03T06:27:28Z")
Reserve Index DTFs: Liquidity Source Integration Proposal Title Reserve Index DTFs: Liquidity Source Integration Proposal Author Patrick McKelvy tg: @pmckelvy1 (preferred) patrick.mckelvy@reserve.org Simple Summary R… --- ## [WOOFi: Liquidity Source Integration Proposal](https://forum.cow.fi/t/woofi-liquidity-source-integration-proposal/3007)
**Author:** [@Merlin](https://forum.cow.fi/u/Merlin)\ **Replies:** 0\ **Last updated:** [May 14, 2025, 6:01am UTC](https://forum.cow.fi/t/woofi-liquidity-source-integration-proposal/3007 "2025-05-14T06:01:02Z")
WOOFi: Liquidity Source Integration Proposal Title WOOFi: Liquidity Source Integration Proposal Author Ivan Shen Email: ivan@woo.network Merlin Au Email: merlin@woo.network Simple Summary WOOFi is a leading decentra… --- ## [Combinatorial Auctions - from theory to practice, via some more theory about rewards](https://forum.cow.fi/t/combinatorial-auctions-from-theory-to-practice-via-some-more-theory-about-rewards/2877)
**Author:** [@AndreaC](https://forum.cow.fi/u/AndreaC)\ **Replies:** 4\ **Last updated:** [April 16, 2025, 7:12am UTC](https://forum.cow.fi/t/combinatorial-auctions-from-theory-to-practice-via-some-more-theory-about-rewards/2877 "2025-04-16T07:12:58Z")
By allowing trades to be executed together, batch auctions deliver additional efficiencies and price improvement relative to alternatives such as Dutch auctions. However, bat5hc auctions also have limitations that are be… --- ## [Help understanding a transaction](https://forum.cow.fi/t/help-understanding-a-transaction/2915)
**Author:** [@redplumptomato](https://forum.cow.fi/u/redplumptomato)\ **Replies:** 2\ **Last updated:** [March 23, 2025, 4:06pm UTC](https://forum.cow.fi/t/help-understanding-a-transaction/2915 "2025-03-23T16:06:46Z")
HI all, Never heard of CoW until today. I’m invested in a project and a large buy just occurred with this TX: Ethereum Transaction Hash: 0x7ed199be84... | Etherscan I’m trying to simply understand what happened here. … --- ## [Create calldata for swap from ETH-\>USDC](https://forum.cow.fi/t/create-calldata-for-swap-from-eth-usdc/2911)
**Author:** [@Locker](https://forum.cow.fi/u/Locker)\ **Replies:** 1\ **Last updated:** [March 23, 2025, 6:06am UTC](https://forum.cow.fi/t/create-calldata-for-swap-from-eth-usdc/2911 "2025-03-23T06:06:17Z")
I would like to generate calldata with Javascript for a basic swap from ETH to USDC on Base. This calldata will be included as part of a UserOp (ERC4337) that will be sent to the execute function of a smart account so th… --- ## [How do I use CoW swap with a proposal on decentDAO.org?](https://forum.cow.fi/t/how-do-i-use-cow-swap-with-a-proposal-on-decentdao-org/2863)
**Author:** [@7042](https://forum.cow.fi/u/7042)\ **Replies:** 0\ **Last updated:** [February 27, 2025, 8:34pm UTC](https://forum.cow.fi/t/how-do-i-use-cow-swap-with-a-proposal-on-decentdao-org/2863 "2025-02-27T20:34:19Z")
Hi CoW community, I am from DecentDAO.org. Our clients want to manage their treasury by purchasing WBTC. After some studying, I think CoW Swap is the best approach. Our clients can create a proposal on decentDAO.org, a… --- ## [Finalizing the parameters of the rewards mechanism (i.e., caps) on Base](https://forum.cow.fi/t/finalizing-the-parameters-of-the-rewards-mechanism-i-e-caps-on-base/2773)
**Author:** [@harisang](https://forum.cow.fi/u/harisang)\ **Replies:** 0\ **Last updated:** [January 22, 2025, 9:43am UTC](https://forum.cow.fi/t/finalizing-the-parameters-of-the-rewards-mechanism-i-e-caps-on-base/2773 "2025-01-22T09:43:27Z")
This short post is intended to inform about the details of the solver rewards mechanism used on Base. As specified in CIP-57, with the launch on a new chain, the core team needs to ensure that solver rewards are provided… --- ## [Problème avec Cowswap](https://forum.cow.fi/t/probleme-avec-cowswap/2733)
**Author:** [@guydemerovee](https://forum.cow.fi/u/guydemerovee)\ **Replies:** 3\ **Last updated:** [January 7, 2025, 8:01pm UTC](https://forum.cow.fi/t/probleme-avec-cowswap/2733 "2025-01-07T20:01:27Z")
Bonjour, Je me permets de vous contacter concernant un problème que j’ai rencontré en utilisant votre plateforme CowSwap. Lors de l’une de mes interactions récentes, j’ai accidentellement donné une autorisation maximale… --- ## [Proposal: COW-specific Smart Contract Wallet with 2 keys with differing roles (withdraw+trade)](https://forum.cow.fi/t/proposal-cow-specific-smart-contract-wallet-with-2-keys-with-differing-roles-withdraw-trade/2198)
**Author:** [@Mookow4eva](https://forum.cow.fi/u/Mookow4eva)\ **Replies:** 4\ **Last updated:** [December 26, 2024, 6:34am UTC](https://forum.cow.fi/t/proposal-cow-specific-smart-contract-wallet-with-2-keys-with-differing-roles-withdraw-trade/2198 "2024-12-26T06:34:20Z")
Please create this COW-specific Smart Contract Wallet. I can’t. The idea is that it’s managed by 2 keys: 1 for trading and 1 for withdrawing. The “withdraw” key can (1) send/withdraw the funds to any external wallet, (… [Next page](https://forum.cow.fi/c/tech-spells/2.md?page=1)