The 5 best SERP APIs for AI search in 2026
By Jean Luc Poitier, SEO and growth marketing strategist · Cloro Reviews · Updated October 3, 2026
Disclosure: this site reviews Cloro and earns a commission if you sign up for it through our links. Cloro is one option below, and we say where it isn't the right fix.
The 5 best SERP APIs for AI search, compared
Cloro
Best for AI answers in one formatCovers ChatGPT, Perplexity, Gemini, Copilot, AI Mode and AI Overview next to Google in one response shape, with a 500-credit monthly free tier. No Claude, no pay-as-you-go, 30 to 45 second AI responses.
Read the Cloro reviews →SearchApi
Best like-for-like alternativeCovers the same AI engines plus Google, priced per search from $40 for 10,000, with 100 free requests.
Cloro vs SearchApi →Bright Data
Best for scale and pay as you goSERP and AI-engine scrapers at $1.50 per 1,000 records, 5,000 free records a month, unlimited concurrency.
Cloro vs Bright Data →DataForSEO
Best for Claude and per-task billingPay-as-you-go SEO data with a $50 minimum payment; its AI Optimization API scrapes ChatGPT and Gemini and tracks Claude and Perplexity mentions.
Cloro vs DataForSEO →SerpApi
Best for classic search enginesThe widest catalog (Google, Bing, Baidu, Yandex, YouTube, Amazon and more), including Google AI Overview and AI Mode, from $25 a month; no ChatGPT or Perplexity API listed.
Cloro vs SerpApi →
How we picked
Each API here returns Google results and at least one Google AI surface as structured data. We compared AI engine coverage, published pricing and free tiers from each vendor's own pages on October 3, 2026. Prices change often; confirm them before you buy.
Best for: Developers and SEO teams who need ChatGPT, Perplexity, Gemini, Copilot and Google answers as data in their own product or reports
Free tier: 500 credits a month, no card required
Best SERP APIs for AI search FAQ
Which SERP API covers ChatGPT and Perplexity?+
Cloro, SearchApi and Bright Data all cover ChatGPT and Perplexity. DataForSEO scrapes ChatGPT and Gemini and tracks Perplexity mentions. SerpApi lists Google AI Overview and AI Mode but no ChatGPT or Perplexity API.
Which is cheapest?+
It depends on the engine mix. For Google, Cloro (about $1.20 per 1,000 on Hobby) and Bright Data ($1.50 pay as you go) undercut SerpApi's plans. For ChatGPT answers, Bright Data's $1.50 per 1,000 is below Cloro's $2.00 to $2.80.
Which has the best free tier?+
Bright Data's 5,000 free records a month is the largest. Cloro gives 500 credits a month, SerpApi 250 searches a month, and SearchApi 100 requests at signup.