Nobody is going to download an app or visit a website to use your agent. Spectrum is an open-source framework that connects your agents to iMessage, Telegram, WhatsApp, and other interfaces people use every day, using one unified API. Your agent sends one message, Spectrum handles the formatting, delivery, and platform-specific logic natively, in under 1 second. Spectrum is free to start. Scale to Pro or Enterprise when you're ready.
Hi everyone, Julie here from the Photon team, the team behind Spectrum.
Spectrum started as our own pain. Building agents on iMessage, WhatsApp, and other messaging apps, we kept running into the same thing: the agent part is mostly solved, but the plumbing around it isn't. Delivery reliability, platform quirks, rate limits, content that renders beautifully on one channel and looks broken on another - that's where the days go.
We figured anyone putting an agent into a messaging app will hit the same wall, so we pulled that layer out, hardened it, and are open-sourcing it as Spectrum: sub-second latency, adaptive rendering across iMessage, WhatsApp, Telegram, Slack, Discord, Instagram and more, with monitoring and human-in-the-loop built in.
We think the next wave of agents lives in messaging, not dashboards. Would love to hear what you think, especially if you're building in this space!
Cool Julie! Does it use official APIs in every messaging app? Cause if so it's super useful for many founders here. Wish you all the best on this impressive launch!
The "omni-channel" approach for AI agents! 🔥 Bringing intelligence to where people already hang out is the most logical path to mass adoption. Can't wait to see more frameworks like Spectrum making agents truly "ambient".
We’ve been using Photon for 3 months. After a brief conversation, Daniel and Ryan got our API key set up in under five minutes. The service is extremely stable.
It’s a young team full of energy, passion, and talent, I'm excited to see see more interesting progress you guys build next!
I often find myself wondering what the world of the future will look like. AI and agents have existed for barely three years, yet their impact on every facet of our society has been extraordinary. They have reshaped how we search, how we code, and even how we understand ourselves as humans. So what will the next five years bring? Will they truly become, as science fiction once imagined, an integral part of our society? Will we work alongside them as real colleagues, relate to them as friends, or even form deeper bonds? And when future generations look at them, will it feel no different from how we look at one another today?
With this belief, we created Spectrum.
Our mission is to make AI a living part of society - to bring its extraordinary capabilities within reach of every individual. Spectrum enables developers to connect agents to the platforms people already know and use every day: iMessage, WhatsApp, phone calls, Telegram, even hardware devices. We believe this is the first real step toward integrating agents into human society - they must appear where human life already happens.
And there is something undeniably powerful about this moment. For the first time, we feel agents not as distant tools, but as participants - joining group conversations, exchanging messages like friends. This shift opens the door to widespread adoption. My mother, for example, used an agent through iMessage for the very first time - and she’s someone who has never used any other app on her phone.
Agents aren’t built for ordinary people - yet. But we believe that together, you and we have the chance to change that.
NO ONE is downloading another app. It's time to bring your AI agents to the channel that people actually use. Spectrum makes this super easy, allowing you to bring in your agent in less than 30 seconds. Fully open source so that you can run everything on your local machine. We also provide a free cloud-hosted plan for people to get started without any friction
The Photon team is cooking.
Earlier this year, @Flux already hinted at something important: people want agents to show up inside the interfaces they already use. Spectrum takes that idea and turns it into infrastructure.
What makes it interesting is not just the channel coverage, but the native rendering layer across iMessage, Telegram, WhatsApp, Slack, Discord, Instagram, and more. One API, but the interaction still looks and behaves like it belongs on each platform. That is a much harder and more important problem than it sounds.
Agent backends are getting crowded fast. The more interesting question now is: who becomes the interaction layer users actually like? Who builds the bridge between frontier agent capability and the communication surfaces people already live on?
@Spectrum has a real shot at becoming that infrastructure.
About Spectrum on Product Hunt
“Bring agents to all the interfaces people already use”
Spectrum launched on Product Hunt on April 21st, 2026 and earned 127 upvotes and 13 comments, placing #6 on the daily leaderboard. Nobody is going to download an app or visit a website to use your agent. Spectrum is an open-source framework that connects your agents to iMessage, Telegram, WhatsApp, and other interfaces people use every day, using one unified API. Your agent sends one message, Spectrum handles the formatting, delivery, and platform-specific logic natively, in under 1 second. Spectrum is free to start. Scale to Pro or Enterprise when you're ready.
Spectrum was featured in Messaging (51.9k followers), Open Source (68.3k followers), GitHub (41.2k followers) and iMessage Apps (22.9k followers) on Product Hunt. Together, these topics include over 43.2k products, making this a competitive space to launch in.
Who hunted Spectrum?
Spectrum was hunted by Zac Zuo. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Spectrum stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Zac Zuo