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Merkl Review

Public reward files that anyone can check against the on-chain root

of 10

Merkl scores 5.8 out of 10 among incentive program operators: 14 named case studies and public reward files for every distribution. Its anti-farming tools are eligibility filters and caps rather than a described detection mechanism, its outcome figures have no stated method, and it publishes nothing on ties to clients. Desk research, checked November 6, 2026.

Role

Reward distribution

Named case studies

14 on merkl.xyz/case-studies, read 2026-11-06

Distributed (company states)

$1,813,562,101 across clients, per the homepage counter

Reward data

One Merkle root per chain; reward file on a public status page

Dispute window

1–2 hours after each root update; anyone can contest

Criteria with nothing published

1 of 6 (independence)

Scores

Named programs
10.0
Disclosed volume
5.0
Impact report
5.0
Abuse protection
5.0
Open data
10.0
Independence
0.0

Each criterion carries equal weight. The overall score is the average of these 6 scores — (10.0 + 5.0 + 5.0 + 5.0 + 10.0 + 0.0) ÷ 6 = 5.8.

Pros

  • Named programs 10: 14 case studies, at least five with network and period
  • Open data 10: reward file for every update on a public status page, no login
  • Any reward root can be disputed for one to two hours after it is posted
  • Amounts stated for most programs, from 1.5 million OP to the $634 million Stable refund

Cons

  • Independence 0: no disclosure of ties to campaign creators or recipients
  • Impact report 5: outcome figures such as $66 TVL per OP have no stated method
  • Disclosed volume 5: Plasma gives no amount; some pages cite deposits, not payouts
  • Abuse protection 5: World ID filter and per-user caps are eligibility rules, not a described detection mechanism
  • Superfest page says its results were not solely attributable to the program

How Merkl scores in incentive program operators

This entry rates Merkl in our incentive and grant program operator ranking, where it is listed under the role of reward distribution: campaign creators fund a budget, and Merkl calculates each address's share and publishes it for claiming. The basis is desk research of Merkl's own case studies, homepage and documentation, read on November 6, 2026. No campaign was created and no reward was claimed. The category uses six criteria, each on a fixed scale of marks and weighted equally, as set out in our ratings methodology.

CriterionWhat the sources showMarkSource, date read
Named programsFourteen case studies. At least five give the network and the period: Optimism Superfest (OP Mainnet, Base, Mode, Fraxtal; eight weeks), World Chain (from April 2025), Plasma (from September 25, 2025; six months), Robinhood Earn (Robinhood Chain; from July 1, 2026) and Coinbase Tokenized Stocks (Base; from August 2026).10merkl.xyz/case-studies, 2026-11-06
Disclosed volumeAmounts are stated for many programs: 1.5 million OP for Superfest, about $5 million on World Chain, over $65 million to Aave users, $7.35 million for Morpho, $3 million for Uniswap, $634 million in the Stable refund. Plasma gives none, and the Robinhood and Ethena Pay pages give deposits or balances rather than amounts paid out.5Plasma case study, 2026-11-06
Impact reportCase studies report outcomes, such as "$66 increase in TVL per OP token" for Superfest and DeFi TVL on World Chain rising from $3 million to $99 million. No page states how these were measured, and the Superfest page says the results were "not solely attributable" to the program.5Optimism case study, 2026-11-06
Abuse protectionThe World Chain campaigns paid only Orb-verified World ID holders and capped rewards at the first 1,000 WLD and 1,000 USDC deposited per user. Any reward root can be disputed for one to two hours after it is posted. These are eligibility filters and caps; no sybil-detection mechanism is described.5World Chain case study, 2026-11-06
Open dataEach update's reward file goes on a public status page "so anyone can audit past distributions", and proofs can be computed from those files. No login is needed.10docs.merkl.xyz technical overview, 2026-11-06
IndependenceNothing published on ties to campaign creators or reward recipients. The case studies are written by Merkl about its clients.0merkl.xyz/about, 2026-11-06

The overall score is the plain average: (10 + 5 + 5 + 5 + 10 + 0) / 6 = 35 / 6 = 5.8.

Two marks changed at this check. Named programs rose from 8 to 10: the case-study index now lists 14 programs, up from the four counted in September, and at least five of them state both network and period. Abuse protection fell from 10 to 5 in a consistency pass across the category, explained below. The overall moved from 6.3 to 5.8.

Strongest criteria: distribution data and named programs

Open data scores 10 because the output of every calculation is public. Merkl's documentation says the engine combines every campaign on a chain into one Merkle tree, posts its root on-chain and publishes the matching reward file on the status page. Anyone can check an address's allocation against the root without an account. The two-hour dispute window matters here. The calculation is done off-chain, so the published file and the right to contest it are the only external checks on it.

Named programs scores 10, the top of the scale, for five or more programs each with a network and a period.

Weakest criteria: volume, impact, abuse protection and independence

Disclosed volume stays at 5. Most case studies give a figure, but the scale requires one for every named program, and the Plasma study has none. Some headline numbers also measure something other than payouts: "$455M+ in USDG deposits" for Robinhood and "$6.5M+ in user balances" for Ethena Pay are deposits, not distributions, and budgets or liquidity do not count. The homepage counter of $1,813,562,101 distributed is a company figure for all clients, not for any named program.

Impact report stays at 5. The outcome figures are metrics, but none comes with a method: no baseline, no attribution rule, no source for the TVL series. The Superfest page reports an "ROI of 4000%" and in the same section says the results were not solely due to the event. That is a deficiency in what is published, not a judgment that the programs did not work.

Abuse protection is 5. The World Chain study names the filter (an Orb-verified World ID) and the cap (rewards only on the first 1,000 WLD and 1,000 USDC per user), and the Aave study describes rules that pay only users above a health factor or exclude those who deposit and borrow at once. The Plasma study adds reward forwarding, which traces deposits in wrapper contracts back to their owners. These are rules on who may claim and how much, set per campaign by the creator. The scale gives 10 only where the anti-sybil mechanism itself is described, such as how a person is verified or how sybil clusters are detected, and treats eligibility filters as mentioned. The mark fell from 10 at this check, when that reading was applied to every operator in the category.

Independence is 0. We found no statement on whether Merkl, Angle Labs or its staff hold positions in the tokens or protocols it distributes for, and no list of client relationships. On this scale, silence scores 0. It records what is published, not what the firm does.

What the score does not cover

The six criteria measure disclosure about programs. They do not test the smart contracts, the accuracy of the off-chain engine, the fees Merkl charges creators or the risk of the activity being rewarded. A reward campaign on a lending market or a liquidity pool carries that protocol's own risk, and displayed APRs change unless a campaign fixes them. Our yield farming explainer covers those risks.

Merkl vs Metrom and Turtle

At this check Metrom reads 6.7 in the category and Turtle 3.3, against Merkl's 5.8. Both Merkl and Metrom run on-chain liquidity incentives with public distribution data, and both score 5 on abuse protection and 0 on independence. Metrom's lead comes from its impact report, 10 against Merkl's 5. Galxe also scores 5.8 and is listed before Merkl alphabetically. Turtle, which distributes campaigns through a network of liquidity providers, trails both.

Who it suits

The score is most useful to a chain, protocol or stablecoin issuer judging whether a distributor's output can be checked: Merkl's reward files and dispute window are its measured strengths. A DAO or token holder who wants to know whether a past program paid off, or whether the distributor has a stake in the result, will find less: outcome figures without a method and no independence disclosure.

How it compares

Sources

Scored from published primary sources rather than hands-on use. Every figure above comes from one of the pages below, on the date shown. Manufacturers change prices and specifications without notice — if something here no longer matches the source, tell us and we will correct it.

  1. 1.Merkl: Case studies index — checked
  2. 2.Merkl: Optimism Superfest case study — checked
  3. 3.Merkl: World Chain case study — checked
  4. 4.Merkl: Plasma case study — checked
  5. 5.Merkl: Aave case study — checked
  6. 6.Merkl: Robinhood case study — checked
  7. 7.Merkl: Coinbase Tokenized Stocks case study — checked
  8. 8.Merkl docs: Technical overview — checked
  9. 9.Merkl: Homepage — checked
  10. 10.Merkl: About — checked

Frequently asked questions

Why does Merkl score 5.8?

It is the plain average of six marks on fixed scales: named programs 10, disclosed volume 5, impact report 5, abuse protection 5, open data 10 and independence 0. That is 35 divided by 6, or 5.8.

What changed since the previous Merkl review?

Named programs rose from 8 to 10. In September Merkl's case studies covered four programs; the index now lists 14, and at least five state network and period, which is the top of the scale. Abuse protection then fell from 10 to 5 in a consistency pass across the category: the World ID filter, per-user caps and health-factor rules are eligibility conditions, and the scale gives 10 only where the anti-sybil mechanism itself is described. The overall moved from 6.3 to 5.8.

What holds Merkl's score back?

Four things. It publishes nothing on ties to the clients it distributes for, its outcome figures carry no method, its anti-farming tools are filters rather than a described detection mechanism, and one named program, Plasma, gives no amount distributed.

Was Merkl tested hands-on?

No. The basis is desk research of Merkl's public case studies, homepage and documentation. We did not create a campaign, connect a wallet or claim rewards, and the score does not cover contract security or fees.

How does Merkl compare with Metrom and Turtle?

At this check Metrom reads 6.7, Merkl 5.8 and Turtle 3.3. Merkl and Metrom both publish distribution data openly, and both score 5 on abuse protection and 0 on independence. Metrom leads on the impact report.

Nothing here is financial advice. Editorial policy · How we score · How we're funded.