# FlipLetters

FlipLetters (https://flipletters.com) makes split-flap and flip-dot board videos with synthesized mechanical click sound.

Type a message, choreograph the flips, and render an MP4 — station boards, flip-dots, color-flap pixel art, desk marquees, framed announcements, and arena marquees.

- **Studio (editor):** https://app.flipletters.com
- **Templates:** https://flipletters.com/templates
- **flipcode docs:** https://flipletters.com/docs
- **HTTP API:** https://flipletters.com/docs/api
- **MCP (hosted):** https://app.flipletters.com/api/mcp
- **MCP page:** https://flipletters.com/mcp
- **OpenAPI:** https://flipletters.com/openapi.json
- **Agent summary:** https://flipletters.com/llms.txt

Drafting flipcode (library or local stdio) needs no account and no API key. Hosted HTTP MCP at https://app.flipletters.com/api/mcp requires `Authorization: Bearer flk_` for every tools/call. Write [flipcode](https://flipletters.com/docs) and share a Studio URL. Cloud MP4 export and team library use a human's plan.