API Documentation

Discovery

• API catalog (RFC 9727)
• auth.md - agent authentication
• Agent skills index
• MCP server card

Website API

Public endpoints on https://www.usegrowthos.com.

• POST /api/newsletter - newsletter subscription
• POST /api/for-startups - startup application

OpenAPI spec (website)

Platform API

Full GrowthOS product API at https://api.growth-os.co.

OpenAPI spec (platform)

OAuth

• Authorization server metadata
• Protected resource metadata

Markdown for agents

Send Accept: text/markdown on any page to receive a markdown representation. See also llms.txt.