About UnderSky

One billing account for production API access

UnderSky is an OpenAI-compatible API gateway for developers who need chat, responses, embeddings, image generation, audio transcription, text to speech, social media data, and address services without managing separate provider accounts.

Unified API

OpenAI-compatible endpoints and one API key for supported services.

Transparent credits

Pay-as-you-go pricing with separate purchased and promotional balances.

Developer workflow

Dashboard, docs, webhooks, and usage analytics for production teams.