Photon builds infrastructure for deploying AI agents into messaging platforms people already use.

Spectrum is Photon's developer platform for connecting AI agents to messaging channels such as iMessage, WhatsApp, Telegram, Slack, Discord, and Instagram.

Who is Spectrum built for?

Spectrum is built for developers and teams building conversational AI agents that need to communicate through existing messaging platforms.

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Build mini apps directly inside iMessage

Spectrum lets you bring interactive, app-like experiences into iMessage.
From booking, shopping, support, payments, onboarding, to AI agent workflows.

No app install. No context switching. Just tap, choose, confirm, and continue the conversation.

We're committed to backing builders worldwide, from the US to Europe and beyond. If you're building something wonderful on Photon, we'll be there with merch, credits, and funds to help you go further.

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Native iMessage Experience

Create mini app interfaces that feel natural inside iMessage, with buttons, cards, forms, confirmations, and rich actions.

Agent-Ready Workflows

Turn AI conversations into real actions. Let agents show options, collect inputs, confirm decisions, and trigger backend workflows.

Fast Integration

Connect your existing APIs and services to Spectrum, then deliver interactive flows through iMessage.

Reliable Infrastructure

Built for production-grade messaging, high availability, and scalable user interactions.

Build anything with Spectrum

From simple confirmations to complex AI-powered workflows,
Spectrum makes iMessage a real product surface.

Your agent belongs in iMessage.

The most familiar place to reach, help, and act with your users.

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The only place you need for agents.

iMessage is used by over 150 million Americans. It is the default place where people talk and interact every day.

Reach users outside the U.S.

With calling and WhatsApp support on the same number, Spectrum is the default starting point for agent companies that want to reach every corner of the world.

Give your agent complete iMessage capabilities.

Spectrum is the only fully feature-complete iMessage API available today. We are the first to provide a full iMessage feature set that matches Apple 1:1.

Unparalleled stability and scalability.

With a team of exceptional talent, Spectrum delivers the most advanced software infrastructure and achieves stability and scalability that no other company can match.