qub for developers

Three integration paths:

HTTP API — full surface at /api/v1/openapi.json. Authenticate with a Builder API key (Authorization: Bearer qub_sk_...) or, for browser flows, a Cloudflare Turnstile token.
MCP server — tools/qub-mcp ships a local Rust binary that wraps create/read/check operations. Plaintext is encrypted on your machine before any network call.
Embed — <qub-embed qub="…"> web component renders the live countdown and reveal inline on any HTML page. Loader pinned at /embed/v1.js.

See llms.txt for a one-page agent-friendly reference and llms-full.txt for the concatenated bundle (llms.txt + protocol + agent support).