Observed arrival · 2026-10-15
Lettervisit tracks the AI agents reading your site
A free script and analytics service that identifies AI-agent visits to a website and makes the data available through a dashboard, MCP server, CLI, and API.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Website operators tracking AI-agent traffic
- Worth noticing
- It separates visits answering a user from search-index crawls, training crawls, and browser agents.
Field notes
The sample table shows timestamps, agent labels, page paths, and whether a visit is verified or detected. Its categories distinguish an agent opening a page to answer someone from indexing, training, or browser-driven activity. The site describes browser-agent detection through a script tag and lists MCP, CLI, and REST API access; an example CLI command filters Claude visits by a seven-day window.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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