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Sindri: The Infrastructure for Zero Knowledge
An 8-person team building the API layer for scalable, reliable cryptography.
The crypto world is obsessed with building new financial primitives, but the plumbing required to power them remains fragmented and unreliable. Enter Sindri: a fintech startup treating cryptography not as a feature, but as a complex infrastructure problem that demands a dedicated API layer.
"Sindri isn't selling a product; they are selling developer time back from the brink of cryptographic complexity."
The Infrastructure Gap
While the broader crypto market fluctuates, the underlying demand for Zero Knowledge (ZK) proofs is accelerating. Developers building on Circom and similar frameworks often hit a wall: local proof generation is slow, and managing scalable infrastructure is a nightmare. Sindri captures this specific pain point. Their traffic data reveals a highly technical user base, with keywords like 'Circom' and 'Axiom' driving discovery. This isn't mass-market retail; it's a B2B play for the engineers actually building the next generation of Web3 applications.
The Lean Machine
Sindri operates with a density of talent that most Series A companies envy. With just 8 employees and $0.8M in revenue, they are generating approximately $100k per head. This lean operation suggests a highly technical founding team—Stasia Carson and Karl Preisner—focused on product-market fit rather than vanity metrics. Their reliance on direct traffic (55%) indicates a product-led growth strategy where developers return to the platform consistently, a strong signal of utility in a market plagued by one-time exploratory usage.
The company's positioning as 'Cryptography Infrastructure Automation' is deliberate. They are abstracting away the hardware requirements and orchestration layers needed to generate proofs at scale. By offering an API, they allow developers to treat computation as a utility, much like AWS did for servers. The stack—Vercel for hosting, Segment for data, and HubSpot for CRM—shows a modern, cloud-native approach to a deep-tech problem.
- Targeting the 'Circom' ecosystem specifically, capitalizing on a dominant framework.
- High direct traffic share suggests strong developer retention and bookmark usage.
- Operating with extreme capital efficiency ($0.8M rev on 8 headcount).
- Positioning themselves as the 'Vercel for Zero Knowledge' proofs.
The Verdict: A High-Conviction Bet
Sindri is building the rails for the ZK revolution, one API call at a time.
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Sindri | Cryptography Infrastructure Automation
The API that connects developers to scalable, reliable infrastructure optimized for cryptographic workloads.
The API that connects developers to scalable, reliable cryptography infrastructure in the cloud. Deploy and maintain ZK and TEE infrastructure effortlessly.
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About sindri.app
The API that connects developers to scalable, reliable infrastructure optimized for cryptographic workloads.
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Technology Stack
sindri.app uses 11 technologies across their website including HSTS, Vercel, HubSpot, and more.
Security
HSTS
Cloud & Hosting
Vercel
Marketing Automation
HubSpot
Forms
Typeform
Analytics & Marketing
PostHog, Segment, Google Tag Manager, Google Analytics
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Traffic & Audience
sindri.app receives approximately 2.9K monthly visitors and ranks #5,603,276 globally. The website has a bounce rate of 43% with visitors viewing an average of 1.8 pages per visit. Users spend an average of 0:09 on the site.
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