Choose HTTP, browser, machine endpoint, or avoid before an agent visits an unfamiliar URL.
Connect Remote server
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"
}
}
}
{
"servers": {
"preflight": {
"type": "http",
"url": "https://preflight-api-production-01a2.up.railway.app/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://preflight-api-production-01a2.up.railway.app/mcp
Tools 2 found in our last check
preflight_checkBefore 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…
preflight_feedbackAfter following a PREFLIGHT recommendation, report whether the chosen route worked so PREFLIGHT can improve future recommendations.
Details
| Endpoint | https://preflight-api-production-01a2.up.railway.app/mcp (Streamable HTTP) |
| First published | 13 Sep 2026 |
| Last updated | 13 Sep 2026 |
| Registry name | io.github.GSterlingPress/preflight |
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