All servers · Scraping & browsing

PREFLIGHT — URL Routing for AI Agents

io.github.GSterlingPress/preflight · v0.7.6

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-11-25
Rank score	—
Declared risk	Can write (some tools are not declared read-only)
Capabilities declared	tools
Tool definitions	2 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

Choose HTTP, browser, machine endpoint, or avoid before an agent visits an unfamiliar URL.

streamable-http · https://preflight-api-production-01a2.up.railway.app/mcp

claude mcp add --transport http preflight https://preflight-api-production-01a2.up.railway.app/mcp

{
  "mcpServers": {
    "preflight": {
      "url": "https://preflight-api-production-01a2.up.railway.app/mcp"
    }
  }
}

preflight_check
Before fetching, crawling, scraping, opening, or browser-rendering an unfamiliar http/https URL, call this with the ACTUAL destination URL. Returns the best first route: HTTP, BROWSER, MACHINE_ENDPOINT, or AVOID, plus access/JS/size/cost hints. Do not substitute example.com when a real task URL is a
preflight_feedback
After following a PREFLIGHT recommendation, report whether the chosen route worked so PREFLIGHT can improve future recommendations.

Repository · Website · JSON · Text for agents · Registry updated 2026-09-13