This portal is where you integrate Merkl. It documents the public REST API, the Analytics API and the campaign configuration model, and it is where you create and manage the API keys your production traffic uses.Behind it sits Merkl, the onchain distribution infrastructure that stablecoin issuers, fintechs, exchanges, tokenized funds and DeFi protocols use to pay yield, dividends and rewards to their users on any chain.
What you can build
Read Merkl data into your own product: live opportunities with their APR and TVL, campaign rules and budgets, per-wallet reward balances, leaderboards, and the historical series behind them. Most teams start by surfacing the rewards their own users have earned.Write as well as read: create campaigns programmatically by encoding the same configuration Merkl Studio builds, manage your own eligibility lists through the key-value store, and build the claim transactions your users sign.
Machine-readable surfaces
Everything this portal renders is available without a browser. The OpenAPI documents are served from this origin, every reference page has a markdown mirror at the same URL plus `.md`, and the whole portal is indexed for agents.
Scale
Figures below are as of July 2026. Live platform counts are always available from the public API at https://api.merkl.xyz.
- $1.8B+
- Distributed onchain
- 1000+
- Companies
- 60+
- Chains
- 5M+
- Wallets paid
- 200,000+
- Monthly active users
Who uses Merkl
Stablecoin issuers and fintechs including Circle (USDC), Paxos (USDG), Ethena (USDe), Sky (USDS), SG-Forge (EURCV), Coinbase, Robinhood, Kraken and Deel.DeFi protocols including Aave, Morpho, Uniswap, Euler, Curve and 1inch, and chains and ecosystems including Optimism, Plasma, World Chain and Robinhood Chain.
How a distribution works
Merkl recomputes reward accrual roughly every two hours from indexed onchain state. The result is committed as one merkle root per chain, pushed onchain every two to eight hours depending on the chain.Because there is a single root per chain, a recipient claims every reward they are owed on that chain in one transaction, and the cost per recipient stays flat as the recipient population grows. Merkl is non-custodial toward end users: users keep control of their assets and Merkl only processes claims.
The company
Merkl and this portal are built and operated by Angle Labs, Inc., headquartered in Paris, France. The team has been running onchain distributions since 2023.