Marketaux vs Diffbot: full comparison for 2026
Quick verdict
Marketaux (3.9/5) edges ahead of Diffbot (3.7/5) overall. Marketaux is the better choice for fintech developers needing ticker-tagged news cheaply. Diffbot is the stronger option for developers collecting news from a fixed list of sites. The right pick depends on your budget, how much history you need and whether you need full text.
Marketaux vs Diffbot: head-to-head summary
| Criterion | Marketaux | Diffbot |
|---|---|---|
| Founded | Not disclosed | 2008 |
| HQ | Not publicly disclosed | Menlo Park, California, USA |
| Team size | Not publicly disclosed | 11–50 |
| Rating | 3.9 / 5 | 3.7 / 5 |
| Primary differentiator | Entity-level sentiment on every article, free plan included | Parser-free extraction from any article URL, linked to a Knowledge Graph |
| Pricing model | Monthly request plans | Monthly credit plans |
| Entry price | $29/mo | $299/mo |
| Formats & SDKs | REST API, JSON | REST API, JSON, Python SDK |
| Typical uses | Financial services, News & content apps | AI & LLM apps, Research & academia, Marketing & PR, Financial services |
Marketaux vs Diffbot: overview
Marketaux
Marketaux saves fintech developers from writing a ticker matcher. Every stock, crypto or forex article it returns lists the entities it mentions, each with a sentiment score from -1 to 1, and that works on the free plan too. Listings put coverage at about 5,000 sources in 30+ languages and 200,000+ tracked entities (per company website; independently unverifiable). The free plan allows 100 requests a day but returns only three articles per request. The official pricing page lists Basic at $29 a month for 2,500 daily requests, and entity statistics and trending endpoints need a paid plan. The site does not say who operates it or where.
Diffbot
Diffbot, founded by Mike Tung in 2008 and based in Menlo Park, California, has an estimated 30–40 staff. Point its Article API at any news URL and it returns title, author, date and clean text without a site-specific parser, and Crawlbot can follow a list of publishers you choose. Its Knowledge Graph links articles to companies, people and topics, so it can also be queried as a news source. The free plan includes 10,000 credits at five calls a minute, Startup costs $299 a month for 250,000 credits, and each exported Knowledge Graph entity costs 25 credits. It works best when you want to build your own news collection from chosen sites.
Features: Marketaux vs Diffbot
| Capability | Marketaux | Diffbot |
|---|---|---|
| Full article text | ✗ | ✓ |
| Historical archive | ✗ | ✓ |
| NLP enrichment | ✓ | ✓ |
| Story/event clustering | ✗ | ✗ |
| Official SDK | ✗ | ✓ |
| Streaming or webhooks | ✗ | ✗ |
| Free access | ✓ | ✓ |
Formats and SDKs: Marketaux vs Diffbot
| Format / SDK | Marketaux | Diffbot |
|---|---|---|
| REST API | ✓ | ✓ |
| Python SDK | N/A | ✓ |
| Node.js SDK | N/A | N/A |
| Webhooks | N/A | N/A |
| WebSocket | N/A | N/A |
| MCP server | N/A | N/A |
| S3/bulk delivery | N/A | N/A |
| BigQuery | N/A | N/A |
Pricing comparison: Marketaux vs Diffbot
| Criterion | Marketaux | Diffbot |
|---|---|---|
| Entry price | $29/mo | $299/mo |
| Pricing model | Monthly request plans | Monthly credit plans |
| Access models | Free tier, Monthly plans | Free tier, Monthly plans, Enterprise contract |
| Price transparency | Public price | Public price |
| Price tier | Budget | Mid-market |
Who each API suits: Marketaux vs Diffbot
| Dimension | Marketaux | Diffbot |
|---|---|---|
| Buyer type | Individuals to enterprise | Individuals to enterprise |
| Typical uses | Financial services, News & content apps | AI & LLM apps, Research & academia, Marketing & PR |
| Example use cases | A news tab in a portfolio tracker. Sentiment features for a hobby trading model. | Monitoring niche trade publications. Clean article text for an LLM from known URLs. |
| How you get access | Free tier | Free tier |
Marketaux vs Diffbot: pros and cons
| Marketaux | |
|---|---|
| + | Ticker extraction and sentiment come built in |
| + | Commercial use from $29 a month |
| + | Covers crypto and forex as well as equities |
| + | Filters by symbol, industry and exchange |
| - | Three articles per free request makes testing slow |
| - | Anonymous operator |
| - | Financial topics only |
| Diffbot | |
|---|---|
| + | No custom scrapers to maintain when a site changes layout |
| + | 10,000 free credits with no card |
| + | Knowledge Graph links coverage to companies and people |
| + | Crawlbot handles crawling the publishers you pick |
| - | Five calls a minute on the free plan |
| - | Knowledge Graph exports cost 25 credits each |
| - | You assemble the feed yourself |
Who should choose Marketaux?
A typical fit: a news tab in a portfolio tracker.
Entity-level sentiment on every article, free plan included. Paid access starts at $29/mo. Typical uses: Financial services, News & content apps.
Who should choose Diffbot?
A typical fit: monitoring niche trade publications.
Parser-free extraction from any article URL, linked to a Knowledge Graph. Paid access starts at $299/mo. Typical uses: AI & LLM apps, Research & academia, Marketing & PR, Financial services.
Decision matrix: Marketaux vs Diffbot
| Your situation | Recommended choice |
|---|---|
| You want to start free before paying | Both |
| Your budget is at the lower end | Marketaux |
| You need full article text in the response | Diffbot |
| You need years of historical news | Diffbot |
| You want an official SDK | Diffbot |
| You are wiring news into an LLM agent | Both work through plain REST calls |
Use case fit: Marketaux vs Diffbot
| Use case | Marketaux fit | Diffbot fit | Winner |
|---|---|---|---|
| Financial services | Strong | Strong | Both equally |
| News & content apps | Strong | Limited | Marketaux |
| AI & LLM apps | Limited | Strong | Diffbot |
| Research & academia | Limited | Strong | Diffbot |
| Marketing & PR | Limited | Strong | Diffbot |
Verdict: Marketaux vs Diffbot
Marketaux (3.9/5) is the stronger overall choice as a news data source. Entity-level sentiment on every article, free plan included.
Diffbot (3.7/5) is worth a look if you need clean article text for an LLM from known URLs. If your situation matches that, Diffbot is a competitive option.
Related comparisons
Marketaux vs Diffbot FAQ
Is Marketaux better than Diffbot?
Marketaux (3.9/5) scores higher overall, but "better" depends on your use case. Marketaux's strongest advantage: ticker extraction and sentiment come built in. Diffbot's strongest advantage: no custom scrapers to maintain when a site changes layout.
How do Marketaux and Diffbot differ in pricing?
Marketaux: monthly request plans, with paid access from $29/mo. Diffbot: monthly credit plans, with paid access from $299/mo. Both offer some free access for testing.
Which is better for enterprise: Marketaux or Diffbot?
Diffbot sells enterprise contracts with negotiated volume and SLA terms. Neither carries licensed publisher content, so check copyright terms before republishing anything.
What are the main differences between Marketaux and Diffbot?
What sets Marketaux apart: entity-level sentiment on every article, free plan included. What sets Diffbot apart: parser-free extraction from any article URL, linked to a Knowledge Graph. They also differ on entry price ($29/mo vs $299/mo) and typical uses (Financial services, News & content apps vs AI & LLM apps, Research & academia).
Verify all details directly with each API before making a decision.