The API Toll: How Photon is Betting on the Death of the App Store

When Photon co-founder and CEO Daniel Tian hosted a literal funeral for mobile apps in San Francisco on September 17—complete with a coffin for app icons—it looked like a stunt. But follow the money, and you'll see a calculated bet on a shift in how software is monetized and discovered.

As TechCrunch first reported, Photon has secured $4.5 million in seed funding to build a world where users no longer need to install new apps. Instead, the startup is positioning itself as the infrastructure layer for AI agents that live inside the messaging platforms people already use, such as WhatsApp and iMessage.

For the creator and developer economy, this is a play to bypass the "bottleneck" of discovery. Tian and CTO Ryan Zhu founded the company after realizing that the hardest part of building consumer apps wasn't the code, but getting users to actually download them. By shifting the experience to a messaging interface, developers can reach users through existing habits rather than fighting for real estate on a home screen.

Photon's business model reflects this shift from the "download" economy to an "access" economy. While the open-source version of the technology accounts for 98% of its use, Photon launched a managed platform in April with subscription tiers. TechCrunch reports that the company has seen 10x revenue growth in four months, with over 40,000 developer sign-ups and a churn rate of less than 3%.

This isn't just about chat bots; it's about building a scalable API toll. Photon provides a unified API, an observability suite, a command-line interface (CLI), and an extensible channel framework. This allows developers to deploy agents across SMS, RCS, email, voice, Telegram, WhatsApp, and iMessage. The platform's utility is already being validated by a diverse set of clients, including business banking platform Rho, finance AI assistant Fliptexts, Corgi Insurance, Gen Z dating platform Ditto, the social introductions app Boardy, and AI email client Slashy.

Moreover, Photon is embedding itself into the broader AI infrastructure. TechCrunch notes that Photon serves as the iMessage layer for Nous Research's Hermes agent and is the underlying layer for NanoClaw and QClaw from Tencent. The company has also integrated with infrastructure and framework providers including Render, Railway, Telnyx, Convex, Mastra, and LangChain.

In my view, the real disruption here isn't the "death" of the app, but the death of the walled garden. If the primary interface for software becomes a messaging thread, the power shifts from the app store curator to the API provider.

Tian is already looking toward the next monetization frontier: agent-to-agent (A-to-A) communication. He envisions a future where a user's primary AI assistant can autonomously recruit other specialized agents—such as those for hotel or flight bookings—to complete a task. This "A-to-A-to-P" (agent-to-agent-to-person) model would transform the software economy from a series of isolated destinations into a fluid network of interconnected services.

Gradient and A* co-led the seed round, which also saw participation from Llama Ventures, HongShan, Karman, Vercel, Z Fellows, and various angel investors.