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Bastion Helix Agent Lens MCP Server

by bastionhelix Your server? Claim it
answering

Bastion Helix Agent Lens is answering right now. Last checked 9 min ago. It exposes 8 tools.

Web pages for AI agents: may-I-use checks, prompt-injection flags, Markdown, JSON, screenshots

Uptime history 4 days of history
4 days agonow
100.0%
Uptime 24h
91 of 91 checks
8
Tools
read from the server
118 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Bastion Helix Agent Lens every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

run in your terminal
claude mcp add agent-lens --transport http https://lens.bastionhelix.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://lens.bastionhelix.com/mcp
~/.codex/config.toml
[mcp_servers.agent-lens]
url = "https://lens.bastionhelix.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "agent-lens": {
      "url": "https://lens.bastionhelix.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "agent-lens": {
      "type": "http",
      "url": "https://lens.bastionhelix.com/mcp"
    }
  }
}

Available tools 8

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

actions
actions
Returns the forms (with every field, its label and whether it is required), buttons and links on a page, each with a CSS selector an automation tool can use. Uses the rendered page when the HTML alone has none. Charged only on success. Price: US$0.004 per successful call (API key credits or x402).
credits
credits
Free. Credits remaining on the API key sent in the Authorization header (1 credit = US$0.001).
delta
delta
For pages an agent checks again and again. The first call returns the page as sections plus a fingerprint; send that fingerprint back as "previous" next time and get only the sections that changed (and the headings of removed ones), or changed:false. Uses HTTP ETag/Last-Modified when the site supports them. Nothing is stored on our side: the fingerprint lives with the agent. Saves tokens on every re-check. Charged only on success. Price: US$0.001 per successful call (API key credits or x402).
extract
extract
No AI model involved: returns the structured data the page already publishes — JSON-LD / schema.org objects (products, articles, events, organisations, breadcrumbs), prices and offers, meta and Open Graph tags, canonical URL, language versions, licence, RSS/Atom/JSON feeds, and HTML data tables as columns + rows. Exact values instead of guesses from text. Charged only on success. Price: US$0.002 per successful call (API key credits or x402).
preflight
preflight
Free. Before an agent spends money or time on a URL: is it allowed (robots.txt for this service and, if you pass user_agent, for your own bot; Content Signals such as ai-input and ai-train; meta robots), does a bot check or sign-in stand in the way, and which engine each task needs — plain fetch, Kitesurf (Cloudflare's lightweight agent browser) or Chromium. Rate-limited per IP.
read
read
Returns the main content of a web page as clean Markdown with absolute links. Tries the cheapest way that works: plain fetch, then Kitesurf, then Chromium, and reports which one worked. Refuses (and charges nothing) when the site's robots.txt or Content Signals say no, or when a bot check answers instead of the page. Charged only on success. Price: US$0.004 per successful call (API key credits or x402).
screenshot
screenshot
PNG screenshot of a page at 1280×800 (or the full page). engine "auto" uses Kitesurf unless the page needs video or WebGL, then Chromium. Charged only on success. Price: US$0.008 per successful call (API key credits or x402).
site
site
Free. Everything an agent should know about a website before using it: its llms.txt (and llms-full.txt), sitemap (page count and first URLs), feeds, language versions, Content Signals, and which known AI crawlers and agents its robots.txt allows. Rate-limited per IP.

Endpoints

URLTransportStateLatencyChecked
https://lens.bastionhelix.com/mcp streamable-http answering 104 ms 9 min ago

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Bastion Helix Agent Lens — questions

Answers built from our own checks of this server.

What can Bastion Helix Agent Lens do?
It exposes 8 tools, read directly from the server on our last check. Among them: actions, credits, delta, extract, preflight, read and 2 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Bastion Helix Agent Lens working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 118 ms. The bar chart above shows every period we have measured.
How do I connect Bastion Helix Agent Lens?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Bastion Helix Agent Lens need an API key?
No. Bastion Helix Agent Lens completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Bastion Helix Agent Lens?
It answers our handshake in 118 ms on average, which is faster than 89% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.