Photon

San Francisco, United States

seed$4.5M raisedFreshly fundedDeveloper ToolsAI & MLdeveloper-tools

◆ Total Raised

$4.5M

◆ Stage

seed

◆ Location

San Francisco, United States

◆ Founded

2024

◆ Team size

1-10

◆ Links

Website ↗

◆ About Photon

AI startup that helps developers build agents that work over messaging apps like iMessage and WhatsApp.

◆ What sets it apart

An open-source, multi-channel infrastructure layer that brings agents into native messaging surfaces with production-grade connectivity and fallback across channels.

◆ Sectors

Developer ToolsAI & MLdeveloper-toolsartificial-intelligence

◆ Business

ModelSaaS

CustomerDevelopers and companies building AI agents and messaging-based automations

◆ Notable

Launched Spectrum as an open-source SDK and cloud platform for multi-channel agents
Claims thousands of developers using its open-source kits
Claims 200k+ impressions from its open-source kits
Launched an iMessage App API for agents

◆ Backing funds on Raise

Gradientseed

◆ Funding rounds

seed$4.5M

1 Oct 2026

Led by Gradient, A*

With Vercel, HongShan, Z Fellows, Llama Ventures, Karman

Source ↗

◆ Explore the market

Developer Tools Developer Tools Seed United States

◆ FAQ

What does Photon do?

AI startup that helps developers build agents that work over messaging apps like iMessage and WhatsApp.

Where is Photon based?

Photon is based in San Francisco, United States, founded in 2024.

How much has Photon raised?

Photon has raised $4.5M in tracked funding and is currently at the seed stage.

Who has invested in Photon?

Investors in Photon include null.