Nathan Kessler
Nathan Kessler is the founder and editor of serp.fast. He runs the tool directory and writes most of the comparisons, guides, and industry news himself. His focus is the web data layer that AI products depend on: scraping and crawling APIs, search APIs, and the browser tools that let agents work on live sites. He tests these the way a buyer would, paying more attention to reliability, real pricing, and whether a vendor can be trusted than to a feature list.
Articles by Nathan Kessler
- The web is closing as the agents arrive: what bot-majority traffic means for web data access
- AI Search APIs Compared: Exa vs Tavily vs Perplexity vs Linkup (2026)
- Exa vs Linkup: Pricing & Features Compared (2026)
- Exa vs Perplexity Sonar: Pricing & Features Compared (2026)
- Tavily vs Perplexity Sonar: Pricing & Features Compared (2026)
- Web-data MCP servers grew up in mid-2026, and so did the risk
- Best Open-Source Web Scraping Frameworks in 2026: A Builder's Guide
- Web data pricing in 2026: why a $0.30 page and a $5 query can cost the same
- Web Content Extraction Benchmarks: How to Evaluate Scraping Quality
- Web Access for AI Agents: Architecture & Tools
- AI Web Agent Benchmarks: A 2026 Field Guide
- How to Pick a Web Scraping API for AI Agents in 2026
- Build vs Buy: Getting Web Data Into Your AI Pipeline
- Cheapest SERP APIs in 2026: What Each Tier Actually Buys You
- Extract Clean Markdown from Any URL: Tools and Approaches
- Independent Search Indexes for AI: Querying the Web Without Google
- Who owns the index? The question AI builders skip when evaluating search APIs
- The SERP API landscape in 2026
- The web scraping API landscape in 2026
- Playwright vs Puppeteer (2026): Decision Guide
- What changed in web data tools – April 2026
- The legal status of web scraping in 2026
- The agentic extraction wave: how Browserbase, Browser Use, and Stagehand changed web scraping
- Getting Started with AI Search APIs
- The AI search API landscape in 2026
- Browserbase vs Steel: Pricing & Features Compared (2026)
- Web scraping tools ranked by total funding
- Comparing browser infrastructure for web scraping
- MCP, Tool Use & How AI Agents Access the Web
- Firecrawl vs Crawl4AI: Pricing & Features Compared (2026)
- Cloud Browser Infrastructure for AI Agents
- Web Data for LLM Training: Sources, Quality & Scale
- SerpApi vs Serper: Pricing & Features Compared (2026)
- How to Choose a Search API for Your AI Product
- Exa vs Tavily: Pricing & Features Compared (2026)
- RAG Data Sources: Where to Get Live Web Data
- Fast Web Scraping: How AI-Native APIs Shifted the Speed Tradeoff
- AI Search APIs Explained: Giving LLMs Eyes on the Web
- Why Your AI Product Needs Real-Time Web Access