# Lightsage

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/lightsage

- Industry: Software
- Headquarters: San Francisco, US
- Website: https://lightsage.com/
- Total disclosed funding: $4M
- Latest round: Seed (Sep 8, 2026)
- Investors on record: 1

## About

Founded in 2026 and based in California, US, API-Rex Inc., trading under the name Lightsage, operates as a provider of a platform that helps software companies monitor and improve how AI agents discover and use their products, APIs, and developer tools.

## Funding rounds

- Seed, Sep 8, 2026, $4M — Nexus Venture Partners

## Investors

- Nexus Venture Partners (https://capitalatlas.ai/funds/nexus-venture-partners) — Seed