Partnerships

Theya x Spark - Fast, Self-Custodial Bitcoin And Stablecoin Payments

Spark Team

3 min read

May 23, 2025

Theya is bringing Spark to its users — making it easier than ever to send & receive Bitcoin and stablecoins using self-custodial wallets that feel as smooth as any modern payment app.

With Spark, Theya users will access low-fee, instant payments over a Bitcoin-native L2, while staying in full control of their funds. Theya is also rolling out shared wallet capabilities, opening up new use cases for Bitcoin — from friends splitting expenses to small teams managing a treasury.

Why This Matters

Theya is a self-custodial wallet built for usability and security — Spark elevates the payment UX. This integration is another step toward realizing the Spark vision: real-time, low-cost transactions that are interoperable with Bitcoin and Lightning, and allow users to support other assets natively on Bitcoin.

For the Spark ecosystem, it’s a meaningful addition — demonstrating how developers can build wallets that are both user-friendly and true to Bitcoin’s principles.

Coming Soon to Theya

With Spark, Theya users will be able to:

Send and receive Bitcoin and stablecoins instantly
Use Bitcoin like a modern payment app — self-custodial, intuitive, and fast
Create shared wallets for flexible multi-user access and coordination

What's Next

Theya’s Spark integration will begin rolling out in the coming months. We’re excited to support Theya and other builders bringing seamless, self-custodial payment experiences to life.

About Theya

Theya is a Bitcoin self-custody platform offering secure, simple collaborative custody solutions for individuals, advisors, and businesses. Theya is based in the San Francisco Bay Area and backed by Y Combinator and General Catalyst.

Learn More about Theya at theya.us →

About Spark

Spark is the fastest, cheapest, most UX-friendly way to build financial apps and launch stablecoins on Bitcoin. It supports native BTC and stablecoin transfers with instant settlement, near-zero fees, and full Lightning compatibility.

Follow on X @buildonspark