Best Stock Sentiment APIs in 2026: Social, News, and Market-Implied Signal Compared
Eleven stock sentiment APIs, sorted by what they actually do. Enterprise news feeds, self-serve social APIs, and free Reddit trackers solve different problems, so the right pick depends on the signal you need and whether you can self-serve or have to sign a contract.
The short version
- Quant fund, deep history: RavenPack / Bigdata.com
- Real-time social Z-score: Social Market Analytics (Context Analytics)
- Self-serve multi-source: Adanos Sentiment APIs
- Cheap news sentiment: Alpha Vantage NEWS_SENTIMENT
- Global news on a budget: Marketaux
- Free Reddit buzz: ApeWisdom
How they compare
Scan the field, then read the full write-ups below. Pricing and limits were checked in June 2026; vendors change them often, so confirm before you commit.
| Tool | Signal type & sources | Sentiment output | Free tier / entry price | Update latency | Ticker coverage | Commercial rights on lower tier | Target user |
|---|---|---|---|---|---|---|---|
| RavenPack / Bigdata.com | News + social, 40k sources | ESS 0-100 (50=neutral) | None; ~$0.0075+/query unit | Real-time (no spec) | 38k-45k cos, 143 countries | Enterprise contract | Quant funds / institutions |
| Social Market Analytics (Context Analytics) | Social (X) + news | S-Score Z-score (±2σ) | None public; quote-only | ~60s social, sub-sec news | US equities w/ enough social data | Enterprise contract | Quant funds / prop desks |
| Adanos Sentiment APIs | Reddit+X+news+Polymarket | BuzzScore 0-100 + bull/bear % | Free 250/mo; $29 / $299 | Hourly (every 60 min) | 35,000+ tracked tickers | Yes, on $299 Pro | Developers / bot builders |
| Alpha Vantage NEWS_SENTIMENT | News (AI/LLM scored) | Article + per-ticker score | 25/day free; $49.99/mo | News-feed (intraday) | US + crypto/forex tickers | Separate license needed | Developers / quants |
| Marketaux | News, 80+ markets | Per-entity score -1..1 | Free (3 art/req); $29/mo | REST polling (no stream) | 200k+ entities, global | Unconfirmed on free | Developers / indie |
| StockGeist.ai | Social (Reddit/X) + news | Pos/neu/neg + emo/info | 10k credits free; $75 pack | Real-time REST + SSE | 2,000+ US, 400+ crypto | Not clearly stated | Developers / quants |
| Finnhub Social Sentiment | Social (Reddit/Twitter) | Mentions + score -1..1 | 60/min free*; gated paid | Not clearly published | US equities by symbol | Per plan (unclear) | Developers / quants |
| Quiver Quantitative | Reddit WSB + alt-data | Mentions + rank + sentiment | No API free; $30/mo | Nightly (~4am) | ~6,000 US equities | None (Hobbyist/Trader) | Retail / quants |
| Utradea Social Sentiment API | X+StockTwits+Reddit | Bull/bear 0-1; -100..+100 | Free 5/min; $22.95/mo (2025) | Intraday (24/72hr windows) | US stocks + crypto | Per RapidAPI terms | Indie developers |
| ApeWisdom | Reddit/WSB + 4chan | Mentions only (no score in API) | Free, no key | ~Twice/hour scan | ~20k-26k stocks (live), 400+ crypto | Undocumented | Hobbyists / indie |
| Swaggy Stocks | Reddit WSB chatter | Rules-based bull/bear | Free (no API) | Real-time (dashboard) | ~1,000+ US stocks | N/A (no API) | Retail traders |
How we ranked them
We sorted on the things that change a buying decision rather than a single overall score. A tool can rank lower here and still be the right call for your use case.
Sources are listed at the foot of this page. Figures reflect June 2026 and vendors change them often.
Signal over volume
We separate scored sentiment (a bullish/bearish polarity or a 0–100 number) from raw mention counts. A buzz tracker and a sentiment feed are different products, even when marketed the same way.
Verified pricing
Free-tier limits and entry prices were read off each vendor’s own pricing and docs pages. Where a page was unreachable, we say so and mark the figure as unconfirmed.
Fit, not a leaderboard
Latency, history depth, coverage, and commercial rights matter differently to a quant fund than to a bot builder, so we name the best pick per use case instead of crowning one winner.
The tools, ranked
Each tool below carries its category, entry price, what it scores, and the one buyer it suits. Pricing was checked in June 2026 against vendor pages; confirm before you build on it.
RavenPack / Bigdata.com
Enterprise news & sentiment analyticsInvestment-grade news sentiment with the deepest history and broadest multilingual sourcing of anything here. Enterprise-priced, and the modern self-serve API still lists explicit sentiment scoring as 'coming soon'.
- Sources
- Premium newswires (Dow Jones, WSJ, Barron's, MT Newswires, Benzinga, FT), Social media, Regulatory filings (50+ countries), Earnings transcripts / press releases, Alternative data
- Access
- REST API (Bigdata.com), Python SDK (bigdata-client), Web platform / AI research agent, Legacy structured data feed / file delivery, WRDS for academics
- Best for
- Quant funds and asset managers needing long-history, multilingual, structured news sentiment for backtesting and alpha.
Strengths
- Investment-grade pedigree since 2003 with 80+ fields, 20+ sentiment indicators and a documented Event Sentiment Score (0-100, 50=neutral)
- One of the deepest histories in the space, news analytics back to 2000, plus 40,000+ sources in 13 languages
- Bigdata.com adds a transparent pay-per-query REST API and Python SDK, a shift from quote-only enterprise delivery
- Strong institutional adoption; accessible to researchers via WRDS
Watch-outs
- Legacy RavenPack Analytics is enterprise quote-only and out of reach for most indie developers
- On the modern Bigdata.com API, explicit numeric sentiment scoring is listed as 'coming soon' rather than fully exposed
- No free tier or free trial per third-party listings
- Document-centric RAG/AI design adds cost-estimation complexity if you just want a per-ticker number
Social Market Analytics (Context Analytics)
Enterprise/quant sentiment feedThe institutional social-sentiment feed quant desks license: a patented, academically validated S-Score Z-score with history to 2011 and Interactive Brokers distribution. Sales-led, X-centric, and heavyweight to onboard.
- Sources
- Twitter/X (~1B tweets/day filtered), 8,000+ news sources / 78,000+ articles per month, Podcasts, Corporate filings / unstructured documents
- Access
- REST API (POST/JSON, api.contextanalytics-ai.com), Real-time sentiment streaming endpoints, Web dashboards (Unstructured Data Terminal), Embedded in Interactive Brokers / Lightspeed / Fidelity, FactSet Marketplace and Dewey Data
- Best for
- Quant funds and prop desks needing an institutional, long-history equity sentiment Z-score and willing to engage sales.
Strengths
- Equity social-sentiment S-Score history back to 2011, far longer than most social feeds, ideal for backtesting
- Patented S-Factor family (S-Score, S-Mean, S-Volatility, S-Delta, S-Dispersion) with a 12-factor account-credibility model, not raw volume
- Real-time and low-latency: social updates ~every 60 seconds in broker integrations; news feed advertises sub-second delivery
- Credible footprint and published validation; embedded in Interactive Brokers, Lightspeed and Fidelity
Watch-outs
- No public pricing and no self-serve signup, effectively enterprise sales-led
- Equity core is Twitter/X-centric, inheriting X data-access and cost risk and lacking multi-source breadth
- Heavyweight developer onboarding: POST/JSON, requested API key, sparse/gated docs, no public quickstart or rate-limit table
- Flagship feed is US-equity concentrated; non-US coverage not clearly documented
The most complete self-serve developer option: five distinct sentiment feeds (Reddit, X/Grok, news, Polymarket, crypto) under one schema, with a transparent documented BuzzScore, a real free tier, and clear $29/$299 commercial pricing, held back by hourly (not streaming) updates and shallow history versus institutional feeds.
- Sources
- Reddit (50+ subreddits incl. r/wallstreetbets, r/stocks, r/investing), X/Twitter (via Grok analysis), Financial news articles, Polymarket prediction markets, Reddit crypto communities
- Access
- REST JSON API (X-API-Key auth, documented endpoints), Per-ticker, market-aggregate and raw-mention endpoints, Live ranking pages and embeddable widgets, Weekly stock reports
- Best for
- Developers and trading-bot builders who want self-serve, multi-source US sentiment with a documented score and affordable commercial rights.
Strengths
- Genuinely multi-source under one consistent JSON schema: Reddit (50+ subreddits), X/Twitter via Grok, news, Polymarket market-implied, and crypto, most rivals are single-signal
- Transparent, documented methodology: BuzzScore (0-100) is a published 5-factor formula (volume, mood, quality, diversity, momentum) alongside bullish/bearish percentages and a sentiment_score
- Broad nominal coverage (35,000+ tracked tickers) and self-serve access with a real free tier and low, predictable $29/$299 pricing
- Commercial rights are explicitly available on a $299 self-serve tier, no sales call, unlike enterprise-only vendors
Watch-outs
- Hourly updates (every ~60 min), not a real-time stream or WebSocket, so it is unsuited to sub-second/latency-sensitive strategies that SMA or RavenPack serve
- Shallow history: max 365 days even on Professional, versus 2011 (SMA) or 2000 (RavenPack) for institutional backtesting
- Newer brand with a shorter public track record and less third-party validation than RavenPack, Context Analytics or Finnhub
- US/English-centric and retail-social-weighted; lacks the multilingual global-equity breadth of news vendors like Marketaux or RavenPack
- X sentiment depends on Grok/X access and the news 'explain' endpoint on an external LLM (Groq), adding upstream dependencies
Alpha Vantage NEWS_SENTIMENT
News sentiment APIThe best-documented cheap news-sentiment endpoint: two-layer article + per-ticker scoring with published thresholds and crypto/forex support, but a thin 25-req/day free tier and a black-box model.
- Sources
- Aggregated third-party financial news outlets, In-house AI/LLM sentiment scoring
- Access
- REST API (HTTPS GET, JSON), Excel/Google Sheets add-ons, Official Alpha Vantage MCP server
- Best for
- Developers wanting cheap, structured, reproducible news sentiment bundled with price/fundamental data from one provider.
Strengths
- Two-layered scoring: article-level overall_sentiment_score plus per-ticker ticker_sentiment_score with an explicit relevance_score (0-1)
- Published, deterministic label thresholds (Bearish/Somewhat-Bearish/Neutral/Somewhat-Bullish/Bullish), reproducible, not opaque
- Equities plus crypto (CRYPTO:*) and forex (FOREX:*) in one endpoint, with topic and time-window filtering and backfill to ~2022
- Cheap and simple: free key in seconds, one well-documented GET, $49.99/mo removes daily caps; ships an MCP server for AI agents
Watch-outs
- News-only, no social (Reddit/X/StockTwits) or prediction-market signal
- Free tier is impractically thin: NEWS_SENTIMENT counts as premium, capped at 25 requests/day
- The AI/LLM scoring model is undocumented and the aggregated news-source list/count is not published
- Commercial use and redistribution require a separate license; history limited to roughly 2022 onward
Marketaux
News sentiment APIThe broadest cheap news-sentiment feed, 200k+ entities, 80+ markets, 30+ languages with per-entity scores, but the free tier returns only 3 articles per request and there is no streaming.
- Sources
- Global financial/press news (5,000+ sources, 30+ languages)
- Access
- REST API (JSON), API key authentication, Web dashboard
- Best for
- Builders needing broad, multi-asset, multilingual news with ready-made per-ticker sentiment from a cheap REST API.
Strengths
- Very broad coverage: 200,000+ entities, 5,000+ sources, 80+ markets, 30+ languages across stocks, ETFs, indices, crypto and forex
- Entity-level (per-ticker) sentiment_score normalized -1 to 1, mapping cleanly to per-symbol scoring
- Rich filtering by symbol, entity type, exchange, industry, country, language and date
- Genuinely free tier with no card; low $24-29/mo entry pricing
Watch-outs
- Free tier is heavily throttled on output (3 articles/request), closer to a demo than a usable dataset
- Returns summaries/excerpts, not full article text, limiting downstream custom NLP
- REST/polling only, no WebSocket or push streaming
- News-only single-signal; no social or prediction-market sentiment
StockGeist.ai
Real-time social sentiment APIA self-serve social-sentiment API with an unusually generous free tier and a pay-as-you-go credit model, plus a distinctive emotional-vs-informative split, but shallow ~1-month history and thin, fragmented docs.
- Sources
- Reddit, X (Twitter), Web-crawled news/blog articles (stocks)
- Access
- REST API (v2, JSON, token auth), SSE real-time streams, Official Python client, Web dashboard, Q&A chatbot
- Best for
- Developers wanting affordable, pay-as-you-go US social sentiment with message-volume and emotional/informative breakdowns for bot prototyping.
Strengths
- Genuinely generous permanent free tier (10,000 monthly REST credits) with unrestricted endpoint access, easy to evaluate without a card
- Pay-as-you-go credit model suits bursty backtesting/bot workloads rather than a rigid subscription
- Differentiated metrics: positive/neutral/negative distribution plus an emotional-vs-informative message classification, volume, news sentiment and rankings
- Multiple granularities (5-min, hourly, daily), both REST and SSE streaming, and an official Python client
Watch-outs
- Shallow history, marketed as up to ~1 month of AI-processed sentiment, limiting multi-year backtests
- US-only coverage capped around 2,000+ tickers; no advertised European/Asian exchanges
- Documentation is thin/fragmented and the main docs host was unreachable during research; dashboard showed an 'under maintenance' banner
- High-end streaming is expensive (crypto streams to $2,500) and per-request credit consumption isn't published
Finnhub Social Sentiment
Broad financial data API with a social-sentiment endpointA clean Reddit/Twitter sentiment endpoint inside a very broad financial-data API with mature SDKs, but the endpoint is plan-gated (reported 403s even on paid plans) and the unlocking tier and price are unclear.
- Sources
- Reddit, Twitter/X
- Access
- REST API (JSON), Official SDKs (Python, Go, JS) + community wrappers, Web dashboard / try-it console
- Best for
- Developers already wanting one broad financial-data API who want to add basic Reddit/Twitter mention-and-score sentiment for US stocks.
Strengths
- Sentiment lives inside a broad API, so quotes, fundamentals, news and social come from one provider and one key
- Well-documented numeric fields per time bucket: mention counts plus positive/negative mentions and a normalized -1..1 score
- Mature tooling: official Python/Go/JS SDKs and community wrappers
- Generous global free tier of 60 calls/minute for prototyping
Watch-outs
- The social-sentiment endpoint is plan-gated, users report HTTP 403 even on paid market-data plans; the required plan is unclear
- Only one endpoint, not a focused product: no per-source array, limited methodology transparency
- Reddit and Twitter/X only, no news or markets sentiment in this endpoint
- US-equity focused; historical depth, update frequency and exact sentiment pricing not clearly published
Quiver Quantitative
Alternative-data API (WSB sentiment + political/insider/institutional data)WallStreetBets mention counts plus a sentiment field with deep history (2018+) inside a rich alt-data toolkit and pandas-native SDK, but the cheap tier excludes the social data and both low tiers carry no commercial rights.
- Sources
- Reddit r/wallstreetbets (mentions + sentiment), r/Cryptocurrency, r/SPACs, Corporate Twitter following, CNBC recommendations, app-store hype score, (Non-sentiment) congressional/insider trades, 13F, lobbying
- Access
- REST API (api.quiverquant.com, token auth), Official quiverquant Python package (pandas), Web dashboard, Free WSB sample via AWS Marketplace, Webhooks (reported)
- Best for
- Quants wanting WSB buzz and sentiment as one signal alongside congressional/insider/13F alt-data from one low-cost API.
Strengths
- WSB dataset combines mentions, rank AND a sentiment field with deep history (back to Aug 2018, ~6,000 equities)
- Clean, well-documented quiverquant Python package returning pandas DataFrames
- Sentiment bundled with differentiated alt-data: congressional/insider trades, 13F, lobbying, government contracts
- Vendor states its WSB NLP improved at distinguishing genuine excitement from sarcasm; free no-expiry sample via AWS
Watch-outs
- Not a dedicated sentiment API; the cheapest $30 tier excludes the social/WSB datasets entirely
- Narrow scope, primarily r/wallstreetbets (plus r/Cryptocurrency, r/SPACs), US-equity/English-Reddit only
- Restrictive licensing: Hobbyist and Trader both carry 'No Commercial Use Rights'
- Full comment-level sentiment historically gated to the top plan; API rate limits not publicly documented
Utradea Social Sentiment API
Retail social sentiment API (RapidAPI)A cheap RapidAPI feed of multi-platform (Twitter/StockTwits/Reddit) buzz with real bullish/bearish scores and source links, but tightly rate-limited, short look-back, and showing strong signs of being unmaintained.
- Sources
- Twitter/X, StockTwits (native bullish/bearish tags), Reddit
- Access
- REST API (JSON) via RapidAPI gateway, Direct Utradea cloud API
- Best for
- Indie developers wanting a cheap, ready-made multi-platform retail buzz+sentiment feed for US stocks and crypto with short look-back tolerance.
Strengths
- Returns genuine bullish/bearish sentiment scores (0-1; -100..+100 on dashboard), not just buzz volume
- Covers three retail venues, Twitter/X, StockTwits, Reddit, plus stocks and crypto in one API
- Rich endpoints: trending lists, sentiment/social-change deltas, social moving averages, and a feed linking to source posts
- Low barrier: free BASIC tier and a $22.95/mo entry plan, no sales call
Watch-outs
- Strong signs of being stale/unmaintained: RapidAPI listing last updated 3 July 2024, vendor dev-site behind login
- Short history, rolling 24hr/72hr windows in intraday intervals; not built for multi-year backtests
- Free and entry tiers are tightly rate-limited (5 and 15 req/min); throughput needs the $195/$795 plans
- Opaque methodology, no public detail on the sentiment model, spam filtering, or source weighting
ApeWisdom
Free Reddit/WSB social-mention tracker with public APIThe easiest free, no-key way to pull Reddit/WSB and crypto mention rankings, but the documented API returns mention counts, not a sentiment score, so it is a buzz tracker rather than a true sentiment API.
- Sources
- Reddit (~15 stock & crypto subreddits), 4chan /biz board (BETA), Ticker universe filtered against Infinite Marketcap
- Access
- Public REST/JSON API (HTTPS GET, no key), Web dashboard / leaderboards, Community-built wrappers
- Best for
- Hobbyists and indie bot builders wanting zero-cost, zero-auth Reddit/WSB meme-stock and crypto mention rankings for momentum signals.
Strengths
- Genuinely free and frictionless: public JSON API with no key, registration or auth
- Clean ranked output (rank, ticker, name, mentions, upvotes, 24h deltas) with subreddit/asset filters and pagination
- Covers both stocks and crypto from the same API, including r/wallstreetbets and a 4chan /biz feed
- Reasonably fresh: source subreddits scanned about twice an hour, with mention de-duplication
Watch-outs
- The documented v1.0 API returns no sentiment score, only mentions/upvotes/deltas; the website 'sentiment %' is not in the JSON
- No published methodology for the website sentiment percentage, opaque for quant use
- No documented rate limits, SLA, terms or commercial licensing, risky for production/commercial use
- Reddit/4chan-only and US-retail-skewed; ~24-hour granularity, no historical time-series in the API
Swaggy Stocks
Free WSB/Reddit sentiment dashboard (no documented public API)A long-running, free WSB sentiment dashboard with a transparent rules-based bullish/bearish score, but its '/API' page is marketing, with no documented endpoints, keys, or pricing, so it is not a developer API.
- Sources
- Reddit r/WallStreetBets comments/posts, Other public social chatter, Financial Modeling Prep (for logos)
- Access
- Web dashboard (browser), Email newsletter, Free account login for extended history
- Best for
- Retail traders wanting a free browser dashboard to eyeball trending meme-stock mentions and bullish/bearish mix.
Strengths
- Genuinely free, including a free account that unlocks more historical sentiment/volume
- Transparent, explainable methodology: a bag-of-words/rules pipeline mapping trading slang to bullish/bearish/neutral
- Broad retail toolset in one place: WSB sentiment, Max Pain, Theta Gang, short-squeeze and penny-stock screeners, crypto/commodity sentiment
- Long-running, well-known WSB tracker with praised free charts
Watch-outs
- Not a real developer API: the '/API' page is marketing, no endpoints, schema, keys, or rate limits; /api, /docs, /pricing return 404
- No machine-readable contract or SLA to build a bot against; data is client-side rendered for human use
- Sentiment is intentionally simplistic (bag-of-words/rules), missing sarcasm and context
- Narrow coverage, ~1,000+ US stocks/commodities and WSB chatter, not broad news or global equities
Where Adanos fits, and where it does not
Adanos lands at #3, above every other self-serve developer option (StockGeist, Finnhub, Marketaux, Alpha Vantage for breadth of signal) but honestly below the two enterprise feeds (RavenPack and Context Analytics/SMA). It earns the upper-middle slot because it is the only entrant combining genuinely multi-source coverage (Reddit, X/Grok, news, Polymarket market-implied, and crypto) under one consistent JSON schema, a fully documented BuzzScore methodology, a real free tier, and self-serve commercial rights at $299/mo. It is not #1 because the institutional feeds beat it decisively on update latency (sub-second/60-second vs hourly), history depth (2000-2011 vs max 365 days), and third-party validation.
Honest strengths
- Only API here spanning Reddit + X + news + Polymarket + crypto under one schema and one key
- Transparent, published BuzzScore (0-100) 5-factor formula plus bullish/bearish percentages, not a black box
- Real free tier (250 req/mo) and low, predictable self-serve pricing with explicit commercial rights on the $299 tier
- Broad nominal ticker coverage (35,000+) and developer-first REST/JSON delivery with ranking pages and widgets
Honest limits
- Hourly updates only, no real-time stream or WebSocket, so it loses to SMA/RavenPack on latency-sensitive use
- Shallow history (max 365 days) versus 2011 (SMA) or 2000 (RavenPack) for serious backtesting
- Newer brand with a shorter public track record and less independent validation than RavenPack, Context Analytics or Finnhub
- US/English-centric and retail-social-weighted; lacks multilingual global-equity breadth, and X/news depend on upstream Grok/Groq LLMs
This comparison is published on Adanos's own website, so treat its placement with appropriate skepticism. We have tried to rank by genuine merit and put two enterprise rivals above it, but the Adanos figures are self-reported from our product pages and not independently audited.
FAQ
What is the difference between a stock-sentiment API and a buzz/mention tracker?
A sentiment API returns a scored polarity (bullish/bearish, a -1..1 or 0-100 score). A buzz tracker returns how often a ticker is mentioned. ApeWisdom and Swaggy Stocks' documented APIs are mention/buzz trackers, ApeWisdom's JSON has no sentiment field, whereas Adanos (BuzzScore + bullish/bearish %), Alpha Vantage, Marketaux, SMA and RavenPack return actual scores. Match the tool to whether you need polarity or just volume.
Which stock-sentiment API has the best free tier?
For social sentiment, StockGeist (10,000 monthly REST credits, no card) and Adanos (250 requests/month, no card) offer the most usable scored free tiers, and ApeWisdom is fully free with no key but returns only mentions. For news, Marketaux is free but capped at 3 articles per request, and Alpha Vantage's free key is limited to 25 requests/day. Finnhub's 60 calls/minute free tier reportedly does not unlock the social-sentiment endpoint.
News sentiment vs social sentiment, which should I use?
News sentiment (Alpha Vantage, Marketaux, RavenPack) reflects published-article tone and suits event-driven and slower signals; social sentiment (Adanos, StockGeist, Finnhub, Quiver, ApeWisdom) captures retail/Reddit/X buzz and meme-stock momentum. They have different coverage, latency, and noise profiles, so many bots blend both. Adanos and StockGeist offer both social and news signals; RavenPack blends news plus social at the enterprise tier.
Which sentiment APIs allow commercial use without an enterprise contract?
Adanos grants commercial rights on its self-serve $299/mo Professional tier. Alpha Vantage requires a separate commercial license. Quiver's Hobbyist and Trader tiers explicitly carry 'No Commercial Use Rights,' needing a custom Commercial tier. RavenPack and Social Market Analytics are enterprise/quote-only. Always check the terms, since several free tiers (Marketaux, ApeWisdom) don't clearly confirm commercial use.
Which APIs give real-time or low-latency sentiment?
Social Market Analytics updates social sentiment about every 60 seconds (sub-second on its news feed), and StockGeist offers SSE streaming. Adanos refreshes hourly (every ~60 minutes) across all five feeds, fine for swing/positioning signals but not sub-second strategies. Marketaux and Alpha Vantage are REST/polling with no push streaming, and ApeWisdom scans roughly twice an hour.
Which sentiment API has the deepest history for backtesting?
RavenPack's news analytics reach back to 2000 and Social Market Analytics' equity S-Score history runs from 2011, by far the deepest, which is why both are favored for quant backtesting. Quiver's WallStreetBets data goes back to August 2018. Self-serve social APIs are much shallower: Adanos offers up to 365 days on its top tier, StockGeist about 1 month, and Alpha Vantage's news roughly to 2022.
Sources
Primary sources checked while writing this piece. Vendor pricing and features change; figures reflect June 2026.
- RavenPack / Bigdata.com, ravenpack.com
- Social Market Analytics (Context Analytics), contextanalytics-ai.com
- Adanos Sentiment APIs, adanos.org
- Alpha Vantage NEWS_SENTIMENT, alphavantage.co
- Marketaux, marketaux.com
- StockGeist.ai, stockgeist.ai
- Finnhub Social Sentiment, finnhub.io
- Quiver Quantitative, quiverquant.com
- Utradea Social Sentiment API, rapidapi.com
- ApeWisdom, apewisdom.io
- Swaggy Stocks, swaggystocks.com