The README's hosted address is https://mcp.firecrawl.dev/v2/mcp. On the keyless free tier, scrape, search, and parse work without an API key and are rate-limited. Crawl, map, and agent tools still need a key. An OAuth-style account connection uses https://mcp.firecrawl.dev/v2/mcp-oauth.
The README says a full default registration lists 27 tools, including search, scrape, map, crawl, interact, credit usage, and monitor tools that recheck a page on a schedule. Interact is for a click, type, or navigate before a read. The project also supports a self-hosted Firecrawl.
There is a free tier, so the cost label is free. Heavier crawling uses Firecrawl credits on an account.