# Lightberry

> Lightberry builds conversational AI "personality" software for robots. Robots running Lightberry
> listen, speak, perceive their surroundings, and act on natural-language instruction without the
> owner writing code. The company is a Y Combinator Fall 2025 startup based in San Francisco, and
> ships its software pre-installed on robots through a partnership with Unitree.

Generated: 2026-07-19
Method: generated (from the API Evangelist catalog entry and live probes; Lightberry publishes no /llms.txt)
Source: https://lightberry.com

## Status

- Lightberry publishes **no public API**: no developer portal, no API reference, no OpenAPI or
  AsyncAPI definition, no SDKs, no CLI, no sandbox, no changelog, and no status page.
- Its documentation covers **device setup** and an internal-facing **MCP architecture** note.
- Do not assume programmatic access exists. Contact the company directly.

## Company

- [Lightberry](https://lightberry.com): Robots with soul — personality software for robots.
- [Y Combinator profile](https://www.ycombinator.com/companies/lightberry): Fall 2025 batch, founded 2025, San Francisco, CA.
- Founders: Ali Attar, Stephan Koenigstorfer, Stephan Wolski (Head of Robotics).

## Docs

- [Lightberry Docs](https://docs.lightberry.com): Notion-hosted documentation.
- Quick Start Guide: power on (micro USB, green light, ~90s boot), connect to WiFi via the
  BTBerryWifi app (device advertises as "lb"), start a conversation (500ms-1.5s response time),
  and set up an assistant.
- MCP Architecture: an MCP server runs on the Lightberry server; each Lightberry device functions
  as a REST API endpoint; the MCP server routes tool calls to the correct device id, resolving the
  device IP via Tailscale. No server URL, transport, or tool list is published.

## Hardware and partners

- Robot Store: officially partnered with [Unitree](https://unitree.com); robots ship with
  Lightberry built in.
- Manufacturer compatibility program covering Unitree, Fourier, Booster Robotics, and High Torque
  platforms (G1, GR-2/N1, T1/K1, Mini-Pi series).

## Contact

- General: hello@lightberry.com
- Founders: founders@lightberry.com
- [X / Twitter](https://x.com/lightberry)
- [YouTube](https://youtube.com/@lightberryinc)

## API Evangelist artifacts

- [apis.yml](https://raw.githubusercontent.com/api-evangelist/lightberry/refs/heads/main/apis.yml)
- security/lightberry-domain-security.yml: probed TLS/DNS posture (TLSv1.3, no HSTS, no DNSSEC, no CAA, SPF present, no DMARC).
- well-known/lightberry-well-known.yml: probe record — no /.well-known/ documents published.
- mcp/lightberry-mcp.yml: the documented (not yet shipped) MCP architecture.