2026 Rankings

Best Search APIs for Stock Market Sentiment (2026)

Five APIs ranked for stock market sentiment analysis: Reddit data, news search, social monitoring. Verified pricing May 2026.

An r/redditstock post covered the Reddit vs Anthropic/SerpAI/Oxylabs lawsuits. Stock traders use Reddit sentiment as a leading indicator. Five APIs ranked for building stock sentiment trackers.

Top Pick

Scavio's Reddit endpoint returns thread content, scores, and timestamps — structured data for sentiment analysis without scraping Reddit directly.

Full Ranking

#1Our Pick

Scavio

$0.005/query; $30/mo for 7K credits

Reddit + Google News sentiment for stocks

Pros
  • Reddit endpoint returns threads + scores
  • Google News via SERP
  • No Reddit ToS scraping risk
Cons
  • Not a dedicated financial data API
#2

Reddit API (official)

Free tier available; API access varies

Direct Reddit data with full coverage

Pros
  • Official data source
  • Full subreddit access
  • Real-time streaming available
Cons
  • Rate-limited free tier
  • Increasingly restricted third-party access
#3

Serper

Free 2,500; $50/50K

Google News search for financial sentiment

Pros
  • Cheap news search
  • Fast responses
Cons
  • No Reddit data
  • Google News only
#4

Brave Search API

$5/1K; $5/mo free

Independent news index for sentiment

Pros
  • Independent index
  • News endpoint
Cons
  • No Reddit
  • Smaller news index
#5

Polygon.io

$29/mo Starter

Financial data + news in one platform

Pros
  • Stock data + news + crypto
  • Purpose-built for finance
Cons
  • Not a search API
  • No Reddit/social data

Side-by-Side Comparison

CriteriaScavioRunner-up3rd Place
Reddit dataYes (endpoint)Yes (official API)No
Google NewsYes (via SERP)NoYes (Serper)
Stock-specific dataNoNoYes (Polygon)
Scraping riskNone (API)None (official)None

Why Scavio Wins

  • Polygon.io is the right choice if you need actual stock data (prices, volume, fundamentals). Scavio is a search API, not a financial data API.
  • Reddit's official API provides the most complete data with real-time streaming. If you can get approved and stay within rate limits, it is the best source for Reddit sentiment.
  • Scavio's advantage is combining Reddit threads + Google News in one API call. A sentiment tracker that checks both sources gets a more complete picture.
  • The Reddit lawsuit context matters: Anthropic, SerpAI, and Oxylabs are being sued for scraping. Using a structured API (Scavio or Reddit official) avoids this legal risk entirely.
  • For hobby stock trackers, the free tiers matter: Scavio 500/mo + Serper 2,500 free = a functional sentiment tracker at $0/mo for low volume.

Frequently Asked Questions

Scavio is our top pick. Scavio's Reddit endpoint returns thread content, scores, and timestamps — structured data for sentiment analysis without scraping Reddit directly.

We ranked on platform coverage, pricing, developer experience, data freshness, structured response quality, and native framework integrations (LangChain, CrewAI, MCP). Each tool was evaluated against the same criteria.

Yes. Scavio offers 500 free credits per month with no credit card required. Several other tools on this list also have free tiers, noted in the rankings.

Yes, some teams combine tools for specific edge cases. But most teams consolidate on one provider to reduce integration complexity and API key sprawl. Scavio's unified platform is designed to replace multi-tool stacks.

Best Search APIs for Stock Market Sentiment (2026)

Scavio's Reddit endpoint returns thread content, scores, and timestamps — structured data for sentiment analysis without scraping Reddit directly.