Firecrawl MCP vs SerpApi

Firecrawl MCP

Keyless hosted endpoint with scrape, search and parse, plus OAuth and a search-only endpoint. No x402 or other machine payment.

SerpApi

Over 100 engines behind one GET URL, with json_restrictor field selection and output=md. 25 incidents on the status feed from July to 1 October 2026, including an outage across all APIs on 10 September.

Firecrawl MCP

1. Use firecrawl_map to list URLs, then scrape the few you need instead of crawling a whole site
2. On the keyless endpoint only scrape, search and parse work. A 429 carries a signup_url for the human
3. Ask for markdown only. JSON, question and highlight formats add 4 credits a page
4. Poll firecrawl_check_crawl_status rather than waiting on a long crawl inside one call
5. Check the URL before scraping. Dead pages still cost a credit

SerpApi

1. Use the MCP with Authorization: Bearer, not the key-in-path URL the README leads with
2. Read serpapi://engines/<engine> before calling a new engine, since params isn't typed
3. Add json_restrictor or output=md to cut tokens, and mode: compact on the MCP
4. A 429 means either the hourly limit or an empty balance. Check the account before retrying
5. Repeat a search within the hour and the cached copy is free. Set no_cache=true only when freshness matters