Turnkey
Turnkey (Turnkey HQ, Inc.)
Turnkey is a crypto wallet infrastructure aimed at developers: through a single API it lets you create non-custodial embedded wallets and sign transactions across hundreds of blockchains, for payment apps, consumer products, AI agents and stablecoin apps. Unlike classic MPC or HSM providers, Turnkey runs signing inside Trusted Execution Environments (TEEs), making key operations isolated and verifiable. The end user always retains control of their assets.
Data & conditions
| Service type | Stablecoin infrastructure |
|---|---|
| Pricing model | Per transaction |
| Custody model | non-custodial |
| Customer type | Developers, Fintech, Platforms |
| Fund custody | Self-custody (funds in your control) |
| Supported countries | US, EEA, UK, APAC |
| OAM Italy registration | No |
| Segment | B2B |
| MiCA / License status | Not disclosed |
Strengths
- Non-custodial architecture with signing inside TEEs (Trusted Execution Environments), isolated and verifiable.
- A single API to create wallets and sign transactions across hundreds of blockchains; top-tier investors (Sequoia, Bain Capital Crypto, Circle Ventures).
- Self-custody: funds stay in your wallet — the platform cannot touch them.
Weaknesses
- A tool for developers and companies: it is not a ready-to-use wallet for the end consumer.
- It requires technical integration and puts responsibility on the client for managing signing flows.
- No notable sovereignty drawback documented.
Verdict
Score 4.1/5, very strong profile. In its favour: non-custodial architecture with signing inside TEEs (Trusted Execution Environments), isolated and verifiable. The trade-off to weigh: a tool for developers and companies: it is not a ready-to-use wallet for the end consumer.
On the Sovereignty lens the score is 5.0/5 (outstanding): the strength is fund control (5.0/5).
Promp's editorial rating based on real fees and net annual cost. Promp reviews third-party products independently.
"Sovereignty" rating: score computed on privacy/anonymity (30%), fund control (20%), censorship resistance (20%), trustless/auditability (20%) and costs (10%). Same data, different weights.
FAQ
Can an individual use Turnkey?
Not directly. Turnkey is a B2B infrastructure for developers: it provides the APIs other companies use to build wallets and apps. A consumer uses the products built on top of Turnkey, not the platform itself.
Does Turnkey custody my crypto?
No. Turnkey is non-custodial: key operations happen inside Trusted Execution Environments and the end user retains control of their assets.
Sources
- Official service page Descrizione · API Data verified on Jul 17, 2026
- coindesk.com Data verified on Jul 17, 2026