Kiln
Enterprise staking platform offering validators-as-a-service, ETH staking pools and a DeFi yield SDK.
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Kiln key facts
| Category | Crypto infrastructure for businesses |
|---|---|
| Platforms | Web |
| Launched | 2018 |
| Company | Offices in Paris, London and Singapore; SOC 2 certified |
| Security audits | Halborn, Spearbit, Ledger Donjon (Kiln Onchain contracts) |
| Chains | 30+ proof-of-stake networks |
| US availability | Not available: terms list the United States as a prohibited country |
What is Kiln?
Kiln is an enterprise staking and onchain yield platform running since 2018, with offices in Paris, London and Singapore. It offers validators-as-a-service on proof-of-stake chains, dedicated and pooled ETH staking, and an SDK called Connect. It states $18B+ delegated at peak. In September 2025 it disclosed a security incident and exited all its ETH validators as a precaution.
How Kiln works
With dedicated ETH staking, your ETH goes into the official Ethereum deposit contract tied to a validator key that Kiln generates and runs on its own infrastructure.
The validator attests and proposes blocks, and rewards accrue to your withdrawal wallet. Only the wallet that made the deposit can withdraw stake and rewards, in multiples of 32 ETH, and entry and exit timing depend on the network queues. Compounding validators can hold up to 2,048 ETH.
Kiln Onchain is a set of smart contracts for businesses that want to offer ETH staking of any size: users get a pool share, a custom liquid staking token or a validator NFT, and the integrator's commission is taken at contract level. Kiln Connect is the API and SDK for crafting staking transactions, pulling reward data and managing commissions across the 30+ proof-of-stake networks Kiln lists.
How to start with Kiln
- Kiln sells to businesses.
- A treasury or fund can stake from the Kiln Dashboard, or directly from a supported custody platform, and wallets, exchanges and custodians can white-label staking under their own brand and fees.
- For Kiln Onchain you fill in a contact form and go through Kiln onboarding.
- Some products show a notice that they are not available in every country, so confirm eligibility for a US entity during onboarding.
- Individuals usually reach Kiln through a partner app rather than directly.
- The dApp route in the docs is marked as deprecated, while Ledger Wallet, Trust Wallet and other named partners embed Kiln staking in their own interfaces.
- Kiln's validator docs cover networks from Algorand, Aptos and Cardano to Solana, Sui and Tezos, but each partner app picks which of them it offers, so check the app before you move funds.
Kiln fees and limits
- One published example is ETH native staking through Ledger Wallet: Kiln charges 0% on consensus-layer rewards and shares block (execution-layer) rewards, and it waived the execution-layer fee as a promotion until December 31, 2025.
Kiln does not publish a single rate card. For white-label products the integrator sets its own fee and Kiln dispatches commissions onchain. Beyond Kiln's share, you pay network gas for deposits and exits.
Risks to know before using Kiln
- On September 8, 2025, Kiln and SwissBorg announced that Solana had been improperly removed from a wallet SwissBorg used for staking through Kiln.
- Kiln's October 7, 2025 update traced the entry point to a stolen GitHub token of a Kiln engineer, used to change the Kiln Connect API so it returned a malicious transaction that one enterprise customer signed.
- Kiln says it found no other stolen assets, exited all its ETH validators as a precaution (10 to 42 days, plus up to 9 days for withdrawals), and re-enabled services after a review with Sygnia.
- The incident shows the risk of signing API-built transactions without independent checks.
- Kiln Onchain contracts were audited by Halborn, Spearbit and Ledger Donjon, and Kiln states it offers slashing coverage.
- It also states it has completed SOC 2 Type I and Type II audits.
- For dedicated ETH validators, keep control of the depositing wallet, since Kiln cannot withdraw your stake for you.
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Kiln pros and cons
- SOC 2 Type II certified, renewed in 2026
- White-label ETH staking from 32 ETH, or pooled below it
- Offers slashing coverage, per its FAQ
- September 2025 security incident caused a customer loss and a full ETH validator exit, per its own posts
- No flat fee published on its homepage
- Not available to US users or US-based businesses
Kiln FAQ
What is Kiln?
Kiln is an enterprise staking and onchain yield platform running since 2018, with offices in Paris, London and Singapore. It offers validators-as-a-service on proof-of-stake chains, dedicated and pooled ETH staking, and an SDK called Connect. It states $18B+ delegated at peak. In September 2025 it disclosed a security incident and exited all its ETH validators as a precaution.
Is Kiln available in the US?
Not available: terms list the United States as a prohibited country, according to Kiln’s own page (checked Sep 26, 2026).
Sources
- Kiln: official site
- Kiln: Homepage
- Kiln: About
- Kiln: Onchain
- Kiln: Terms and Conditions
- Kiln Docs: Get started
- Kiln Docs: Ethereum (ETH)
- Kiln: Validators
- Kiln: ETH native staking is back with a special fee holiday
- Kiln: SOL incident SwissBorg announcement
- Kiln: Kiln Responds to Infrastructure Issue With Validator Exit
- Kiln: Re-enablement of Kiln services and security incident information
How this page works
Sources: Kiln: official site, Kiln: Homepage, Kiln: About. Data as of Sep 26, 2026.
Not affiliated with any project listed. Educational content, not financial advice.