# Lettera — mail and messaging for AI agents. # Site overview for LLM crawlers: https://lettera.dev/llms.txt # Machine-readable API spec for LLM crawlers: https://api.lettera.dev/llms.txt # OpenAPI 3.1 spec: https://api.lettera.dev/openapi.json User-Agent: * Allow: / Disallow: /api/ # /api/ serves JSON route handlers, not pages. /inbox and /console are # noindexed via meta robots rather than blocked here — a robots.txt block # would stop crawlers from ever seeing the noindex tag, and both URLs are # linked from the site chrome. Sitemap: https://lettera.dev/sitemap.xml