Best search API for AI agents in 2026
Compare 26 web search options for AI agents on price per 1,000 searches, free tier, MCP, independent score and data terms, checked 20 October 2026.
Web search APIs for AI agents compared and explained, each page dated by the day its facts were checked.
Compare 26 web search options for AI agents on price per 1,000 searches, free tier, MCP, independent score and data terms, checked 20 October 2026.
Compare web search MCP servers by address, sign-in, free use and tools, with add steps for Claude, ChatGPT, Claude Code, Cursor and VS Code.
One search provider is enough for narrow questions; a router helps when questions vary or you need failover. Benchmark evidence runs both ways.
Tavily charges $8 per 1,000 basic searches; Exa, Parallel, Perplexity, Octen, Brave, Firecrawl and Linkup list $1 to $7. Eight options, each sourced.
Exa lists $7 per 1,000 searches; Parallel fast, Perplexity Fast Search and Octen list $1, Brave and You.com $5. Seven alternatives, sourced.
Brave Search API costs $5 per 1,000 requests with a $5 monthly credit. Eight alternatives compared on price, storage terms, MCP and accuracy, with sources.
Perplexity ended Sonar Chat Completions on 27 September 2026. Compare raw-result and cited-answer alternatives with prices, MCP and accuracy, with sources.
Microsoft retired the Bing Search APIs on 11 August 2025; for raw results use Brave, Exa, Perplexity, Parallel or Tavily.
Google's Custom Search JSON API ends on 1 January 2027; Brave, Exa, Perplexity, Parallel and Tavily return raw results instead.
A few search APIs return licensed publisher content, including Ozone via Grounder, Valyu and Linkup; licensed-only search lowers answer accuracy.
Exa, You.com, Valyu and Linkup say their crawlers follow robots.txt; Perplexity and Brave document limits, and Tavily publishes nothing.
Exa was more accurate than Brave in Grounder's October 2026 benchmark; Brave was faster and lighter in tokens. Prices, storage terms and MCP compared.
Perplexity Search beat Tavily on accuracy and speed in Grounder's October 2026 benchmark; Tavily adds extract and crawl. Prices and MCP compared.
Brave was faster than Tavily in every test cited and lists a lower price; accuracy results differ by test. Prices, output, storage terms, MCP compared.
Exa beat Tavily on accuracy in Grounder's October 2026 benchmark; Tavily uses fewer tokens and adds crawl and map. Prices and MCP compared.