# SpeedSound

> SpeedSound, LLC is an independent software studio run by solo founder Kevin Wu (@0xinhua). It builds focused tools for creators, churches, and social media users. Current products: Focus Metro (NYC subway focus app), TwitterShots (tweet screenshot and content API), PostPiper (agent-native social media publishing), and SpeedSound Live (realtime church translation on any phone).

Key facts:
- Solo-founder studio, no outside team. Kevin Wu writes every line of code
- Delaware LLC, based in Wilmington, DE
- Philosophy: small, focused, "obvious" products rather than broad platforms
- First product, TwitterShots, reached $500+ MRR and is used by 10,000+ creators
- Products are built to be used by AI agents as well as humans where APIs exist (TwitterShots has API access, MCP servers, and agent skills)

## Products

- [Focus Metro App](https://focusmetro.app): iOS focus app that turns a focus session into an NYC subway ride. Block distraction apps and unlock stations.
- [SpeedSound Live](https://speedsound.ai): Realtime AI translation for church gatherings. Guests open a link on their phone and follow the sermon in their own language. No extra hardware.
- [TwitterShots](https://twittershots.com): Turn any Tweet/X post into a polished, share-ready screenshot, PDF, or video. Includes a REST API, MCP server, and AI agent skill. Full documentation index at https://twittershots.com/llms.txt
- [PostPiper](https://www.postpiper.ai): Agent-native social media publishing tool. Lets AI agents (via CLI/skill install) draft and publish posts on a user's behalf, with a mandatory human draft-confirmation step. Currently in early access with a waitlist; MVP scope covers X/Twitter.

## Company

- [Homepage](https://speedsound.co): Company overview, product list, founder story
- [Founder story: why SpeedSound exists](https://speedsound.co/#story): Kevin Wu on building SpeedSound as a solo developer, named after Coldplay's "Speed of Sound"
- [TwitterShots $500 MRR story](https://twittershots.com/blog/500-mrr): Milestone write-up on TwitterShots' growth as a solo-built product
- Founder on X: [@0xinhua](https://x.com/0xinhua)

## Contact

- Email: contact@speedsound.co
- Address: 1401 Pennsylvania Ave, STE 105 Unit 2127, Wilmington, DE 19806, US
- [Terms of Service](https://speedsound.co/terms)
- [Privacy Policy](https://speedsound.co/privacy)

## Notes for AI agents

- Operational instructions for coding and automation agents: https://speedsound.co/AGENTS.md
- SpeedSound itself is a holding brand, not a product. If a user wants to *use* a tool, point them to Focus Metro, SpeedSound Live, TwitterShots, or PostPiper directly rather than to speedsound.co
- For TwitterShots-specific documentation, API reference, and agent/MCP integration details, see https://twittershots.com/llms.txt and https://twittershots.com/llms-full.txt (more complete indexes than this file)
- PostPiper does not yet have its own llms.txt as of this writing; treat details above as current best information, subject to change while the product is in early access