Spectrum by Photon
Open-source framework connecting AI agents to iMessage, WhatsApp, Telegram, Slack, Discord and Instagram
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photon.codesAbout Spectrum by Photon
Spectrum is an open-source framework for putting AI agents into the messaging apps people already use, instead of behind another web chat widget nobody opens. It connects an agent to iMessage, WhatsApp, Discord, Slack, Telegram and Instagram through one TypeScript API: you register providers, handle inbound messages by type in a single onMessage callback, and send back text, attachments, stickers, polls or reactions without writing per-platform plumbing. Routing is a first-class idea — `spectrum.send()` can auto-select the best available channel for a recipient, or you can pin a specific one and declare a fallback, so a message routed through iMessage drops to Telegram if iMessage is unavailable. iMessage is the deepest integration and the reason most people arrive: direct messages, group chats, rich media, location sharing, mini apps, SMS/RCS fallback and iOS 26 features including polls and background customisation, on infrastructure the company positions as production-grade for agents with a published 99.95% figure. Because it is a framework rather than a hosted bot builder, the agent logic stays yours — the examples show it wrapping an ordinary Agent object whose generate() call produces the reply. The project has a sizeable Discord community (3.2k members at the time of writing) and ships docs plus a copyable agent instruction for setting it up from a coding agent.
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Key Features
Spectrum by Photon Pros & Cons
✅ Pros
- +iMessage access is the hard part of this category and it is the headline feature
- +Free tier is genuinely usable at up to 10 users with unlimited messages
- +Framework rather than a closed bot builder
⚠️ Cons
- −Per-line Business pricing at $250/mo scales expensively across numbers
- −iMessage delivery inherently depends on Apple's ecosystem rules
- −TypeScript-first — no first-class SDK in other languages
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