# Letco — https://letco.ai
# We welcome AI search and answer engines. Content may be used for search,
# as AI input (citation/grounding), and for AI training.
Content-Signal: search=yes, ai-input=yes, ai-train=yes

User-agent: *
Allow: /

# Explicitly welcome major AI crawlers (search, citation and training)
User-agent: GPTBot
Allow: /

User-agent: ChatGPT-User
Allow: /

User-agent: OAI-SearchBot
Allow: /

User-agent: ClaudeBot
Allow: /

User-agent: Claude-Web
Allow: /

User-agent: anthropic-ai
Allow: /

User-agent: PerplexityBot
Allow: /

User-agent: Google-Extended
Allow: /

User-agent: CCBot
Allow: /

Sitemap: https://letco.ai/sitemap.xml