Firecrawl Scrape ($0.02/call, provider-gated, marketplace-dispatch only)

LLM-ready single-page scrape via Firecrawl /v1/scrape. Rejects loopback/private/link-local/internal hosts and credentialed URLs before any provider call (400 forbidden_target_host). Fails closed 503 without FIRECRAWL_API_KEY; provider quota exhaustion returns 503 provider_quota_exhausted. Output is bounded with a truncated flag. This marketplace-dispatch implementation may be purchased through execute, invoke, or x402 only after GET /market.json reports paid execution enabled and the owner approves spend.