Agentsite
Same bytes to every visitor; Markdown twin at <body> top
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What is Agentsite?
AgentSite is a server-side rendering (SSR) middleware service designed for the agent era, making single-page applications (SPAs) readable to AI engines like Claude, ChatGPT, Gemini, and Perplexity. SPAs typically ship an empty <div id=
Agentsite pricing
Pricing model: Freemium
Free tier includes a no-signup free score check to see how AI engines read your site. Sign-up is free to start with a kickoff allowance that lets you try without a credit card. Pricing is per-site tokens with usage visible in the dashboard. After the kickoff allowance, paid plans are required — specific plan tiers and exact dollar amounts are shown on the pricing page after sign-up. No hidden fees, no contracts mentioned.
Agentsite pros
- Fixes SPA invisibility to AI agents like Claude, ChatGPT, Gemini, Perplexity
- Drop-in server-side rendering without complicating your build stack
- Fail-open design serves unmodified index.html if cloud is unreachable
- Free score check with no signup required
- Live on screen in under 3 minutes after installation
- Snippet stays in your codebase permanently
- Automatically adds .md handling for quotable markdown twins
- Injects real meta tags: title, description, OpenGraph, JSON-LD
- Crawl assets chat models never touch: meta, JSON-LD, llms.txt, sitemap
- Multi-pass assessment across eight citability dimensions
- Five-minute install start to finish with one prompt to Claude Code
- No UA tricks or bot routing — every visitor gets the same bytes
- Cold misses respond in milliseconds with unmodified shell
- Works out of the box with Lovable's default Cloudflare Edge deploy
- Per-site token pricing with kickoff allowance to try without card
- Dashboard shows usage and per-site tokens
- Removal is one line of code, everything reverts to before
Agentsite cons
- Requires signing up and registering your domain
- Token must be added to CI/CD secrets or deploy environment
- Paid plans required after kickoff allowance expires
- Cloud dependency — relies on AgentSite's servers for SSR
- Does not replace need for quality content writing
- Does not replace backlinks or brand authority building
- May not be necessary for already SSR/static sites
- Documentation for full install may require reading API docs
Frequently asked questions about Agentsite
How is AgentSite different from AEO graders and mention-monitoring tools?
AEO graders (HubSpot grader, isitagentready.com) and mention monitoring tools (Profound, Scrunch, Otterly) only diagnose — they tell you how you're viewed externally but don't fix anything. AgentSite both diagnoses AND fixes: it measures the same way graders do, then installs the actual middleware that makes your content citable. The whole loop is in one product.
Why can't I just do this myself?
You can — v1 is a weekend project. What burns is the ongoing tail: bot user agents shift quarterly, the llms.txt schema is still moving, attack-probes mutate, and freshness scans need cluster-scheduling. Citation rates regress invisibly when any of this drifts, and you can't tell without scanning from outside. AgentSite treats that tail as the product with server-injected agent-readable markdown that LLMs read directly.
Will this break my site?
No. The snippet is fail-open — if AgentSite's cloud is unreachable, it falls back to your unmodified index.html. No exception bubbles up to visitors. Removing the snippet is one line of code, and everything goes back to how it was before.
What is AEO and why is it the new SEO?
AEO (Answer Engine Optimization) is optimization for AI answer engines like Claude, ChatGPT, Gemini, and Perplexity. Most of your traffic is now coming from these AI tools rather than traditional search. AgentSite makes your site agent-readable so these models can find, read, and cite your content instead of hallucinating or seeing an empty SPA shell.
What is llms.txt and how does AgentSite use it?
llms.txt is a markdown file at the root of a website that gives AI agents a curated index of the site's most quotable content. AgentSite crawls and assesses your llms.txt as part of its multi-pass problem assessment, and adds automated llms.txt handling as one of the best practices it ships to level up your site for agents.
How do I install AgentSite on my Express app?
Sign up and get a token, then paste this into Claude Code (or Cursor, Copilot): 'Set up agentsite on my server. My token is asit_xxxxxxxx. Read https://api.agentsite.app/llms.txt and follow the install instructions for an Express app serving a static SPA from ./dist.' Push your branch after the token lands in your CI/CD secrets, and the dashboard flips to live on the first agent fetch.
I built my site with Lovable/v0/Bolt — do I still need AgentSite?
Yes. AI tools like Lovable, v0, and Bolt generate single-page apps and call it done, but your shipped SPA is still invisible to agents. AgentSite adds the layer that makes ChatGPT, Claude, and Gemini able to read it without a rebuild or second tool. Lovable's default Cloudflare deploy works out of the box via AgentSite's Edge install.
What happens if I remove the AgentSite snippet?
Removing the snippet is one line of code, and everything goes back to before. Your site reverts to serving just your unmodified index.html without SSR enrichment. This is by design — the installation is reversible and doesn't lock you into anything.