Mcp

io.github.carlosofscience/bulk-url-checker

Validate up to 75,000 URLs per job (status, redirects, response times). OAuth 2.1.

Verified: 2026-05-13 (mcp-registry-ingest-2026-05-13+enrich-capability-skill)

When to use io.github.carlosofscience/bulk-url-checker

Choose if

Your agent needs to validate a large batch of URLs (status codes, redirect chains, response times) with rate-limit-aware fetching — typical for SEO link audits, content migrations, or scheduled link health monitoring. OAuth 2.1 + PKCE flow is agent-friendly (sign-in popup on first use); proxy rotation handles defended origins better than a raw `curl` loop from an agent host. Free tier (300 checks) enough to validate fit before committing to a $9–$99/mo plan.

Avoid if

You only need to check a handful of URLs (the agent host's built-in fetch is faster). Also avoid if you need page-content extraction or render-aware checks — this surface is status/redirect/timing only. Production workloads on the free tier (300 total checks) will exhaust immediately; budget for a paid plan or look at a self-hosted alternative.

Risk Flags

  • MEDIUM cost Free tier capped at 300 one-time checks total (not per-day). Paid tiers start at Starter ($9/mo, 15K checks) through Agency ($99/mo, 200K checks). Credit model: 1 URL = 1 credit, so a 75K bulk job consumes most of a Pro-tier monthly allowance in a single run.
  • MEDIUM rate_limit README describes "intelligent proxy rotation and automatic retry logic" backed by 1,400+ rotating proxies. Acknowledged limit: "we can't guarantee all rate limits can be bypassed" — agents shouldn't assume 100% success against well-defended origins.
  • LOW maturity Public GitHub repo `carlosofscience/url-checker-engine` returns 404 — codebase appears to be private. README content is hosted on bulkurlchecker.com. Agent-native (Claude, ChatGPT, Cursor) framing and OAuth 2.1 + PKCE indicate a productized offering rather than an open-source MCP.

Cost

Type: Freemium

Distribution

MCP Registry
io.github.carlosofscience/bulk-url-checker
Repository
https://github.com/carlosofscience/url-checker-engine