SoundCloud wrote docs for coding agents in May (an LLM context page, an OpenAPI JSON, a ready-made prompt), and the new growth director is hired to make SoundCloud discoverable in "AI search" and "AEO". But developers.soundcloud.com has no /llms.txt and no sitemap.xml (both 404), and its homepage has no description. Spotify and Audius both publish /llms.txt for their developer portals, so an assistant asked to "build a music app" finds their docs first. Every developer who does find SoundCloud's docs needs Artist Pro to get a key, so this is also a subscription path.
First action
Write /llms.txt from the existing LLM context page.
How to measure it
Developer-portal Artist Pro checkouts
- Now
- –
- Target
- +30%
- By
- 90 days
Steps
Write llms.txt
Summary and links to the key docs.
Developer Relations Lead 2 hours
Build the sitemap
All docs and blog URLs, listed in robots.txt.
Web Engineer, Developer Portal 1 day
Add descriptions
Homepage and every docs page.
Developer Relations Lead 1 day
Submit
Google and Bing webmaster tools.
Web Engineer, Developer Portal 1 hour
Baseline AI answers
Ten developer questions in four assistants.
Senior Director, Integrated Marketing & Growth 1 day
Track
Referral-coded checkouts and new apps.
Growth Analyst weekly
Repeat
Monthly AI-answer check.
Senior Director, Integrated Marketing & Growth monthly
Why it works
Publish /llms.txt that summarizes the API and links the LLM context, OpenAPI JSON, API Guide, Widget API and Get an API key pages; add /sitemap.xml with every docs and blog URL and declare it in robots.txt; write titles and descriptions for the homepage and each docs page. Then test the common questions in ChatGPT, Claude, Gemini and Perplexity each month and track Artist Pro checkouts that carry the developer portal's referral code.
AI assistants and search engines prefer sources they can find and parse. A one-day change puts SoundCloud's agent-ready docs in front of the developers already asking assistants how to add music to their apps.
Ready to use
ChecklistAI discoverability checklist
[ ] /llms.txt with API summary and links [ ] /sitemap.xml with all docs and blog URLs [ ] Sitemap line in robots.txt [ ] Title and description on every docs page [ ] Search Console and Bing submission [ ] Monthly test: 10 questions in 4 assistants [ ] Referral-coded Artist Pro checkouts tracked
Risks and how to handle them
Assistants change slowly
Track monthly and keep the files current with each API release.
Docs drift from the API
Generate llms.txt from the OpenAPI file on release.
Evidence
- Your websiteMachine-readable discovery (checked October 21, 2026): /sitemap.xml and /llms.txt both return 404, although /docs/llm-context offers "a compact facts-and-patterns summary optimized for agents" and the Building with AI page gives an OpenAPI JSON, "a reusable system-style prompt" and example prompts for Cursor, GitHub Copilot, ChatGPT and Claude.Source
- HiringSenior Director, Integrated Marketing & Growth (New York, posted August 25, 2026, reporting to the Chief Growth & Marketing Officer): build "SoundCloud's growth operating system", own acquisition, lifecycle, paid media and conversion, "while expanding emerging discovery channels including SEO, AI search, AEO, App Store Optimization, and growth loops", and ensure "our platform remains discoverable in a world increasingly shaped by AI-powered search and recommendation engines".Source
- Competitor researchRival developer portals: Spotify for Developers publishes /llms.txt ("the developer portal for Spotify's platform APIs and SDKs, including the Web API, iOS SDK, Android SDK, Embeds, and more"); Audius publishes /llms.txt for its docs ("Build on the largest open music catalog on the internet"); Apple offers MusicKit.Source
- Your websiteHomepage: title "SoundCloud Developers" with no meta description; a numbered menu led by "01 Building with AI new!" and "02 Get an API key new!"; support points to GitHub issues and Stack Overflow; the footer's "Competition Terms" link opens the terms of the "Berlin Buzzword competition" that ran April 27 to May 5, 2014.Source
- Your websiteGet an API key: "You need a SoundCloud Artist Pro subscription to register API applications and receive credentials"; credentials come from a one-line CLI with "--remote" pairing for "SSH sessions, CI, cloud shells, and coding-agent environments", and the page links to the Artist Pro checkout with a referral code.Source