Diffbot vs Finnhub: full comparison for 2026
Quick verdict
Diffbot (3.8/5) edges ahead of Finnhub (3.6/5) overall. Diffbot is the better choice for teams building custom news collection from chosen sites. Finnhub is the stronger option for developers who need market data and news from one key. The right pick depends on your budget, how much history you need and whether you need full text.
Diffbot vs Finnhub: head-to-head summary
| Criterion | Diffbot | Finnhub |
|---|---|---|
| Founded | 2008 | 2018 |
| HQ | Menlo Park, California, USA | New York, USA |
| Team size | 11–50 | Not publicly disclosed |
| Rating | 3.8 / 5 | 3.6 / 5 |
| Primary differentiator | Turns any article URL into clean structured data linked to a Knowledge Graph | Company news bundled with quotes, fundamentals and estimates |
| Pricing model | Monthly credit plans | Free key; paid market-data bundles |
| Entry price | $299/mo | Varies by data bundle |
| Formats & SDKs | REST API, JSON, Python SDK | REST API, JSON, WebSocket |
| Typical uses | AI & LLM apps, Research & academia, Marketing & PR, Financial services | Financial services, Research & academia |
Diffbot vs Finnhub: overview
Diffbot
Diffbot was founded in 2008 by Mike Tung and is based in Menlo Park, California, with an estimated 30–40 employees. It uses computer vision and NLP to extract structured articles from any web page, and its Knowledge Graph links articles to organisations, people and topics so it can be queried as a news source. A free plan includes 10,000 credits at five calls a minute, the Startup plan costs $299 a month for 250,000 credits, and exporting one Knowledge Graph entity costs 25 credits. Teams that want to assemble their own news collection get more from it than teams wanting a ready-made feed.
Finnhub
Finnhub is a New York fintech founded in 2018, according to CB Insights, that sells stock, forex and crypto data over REST and WebSocket, with staff reported in New York, Mumbai, Sydney and Ho Chi Minh City. News is one feature among many. A free key returns a year of North American company news and general market headlines at up to 60 calls a minute, but it is meant for personal, non-commercial use, and low-latency news streaming is a premium feature. Commercial data bundles are priced on Finnhub's site, with the All-in-One plan listed at $1,000 a month.
Features: Diffbot vs Finnhub
| Capability | Diffbot | Finnhub |
|---|---|---|
| Full article text | ✓ | ✗ |
| Historical archive | ✓ | ✗ |
| NLP enrichment | ✓ | ✗ |
| Story/event clustering | ✗ | ✗ |
| Licensed publisher content | ✗ | ✗ |
| Streaming or webhooks | ✗ | ✓ |
| Free access | ✓ | ✓ |
Formats and SDKs: Diffbot vs Finnhub
| Format / SDK | Diffbot | Finnhub |
|---|---|---|
| REST API | ✓ | ✓ |
| Python SDK | ✓ | ✓ |
| Node.js SDK | N/A | ✓ |
| Webhooks | N/A | N/A |
| WebSocket | N/A | ✓ |
| MCP server | N/A | N/A |
| S3/bulk delivery | N/A | N/A |
| BigQuery | N/A | N/A |
Pricing comparison: Diffbot vs Finnhub
| Criterion | Diffbot | Finnhub |
|---|---|---|
| Entry price | $299/mo | Varies by data bundle |
| Pricing model | Monthly credit plans | Free key; paid market-data bundles |
| Access models | Free tier, Monthly plans, Enterprise contract | Free tier, Monthly plans |
| Price transparency | Public price | Quote only |
| Price tier | Mid-market | Enterprise / quote |
Who each API suits: Diffbot vs Finnhub
| Dimension | Diffbot | Finnhub |
|---|---|---|
| Buyer type | Individuals to enterprise | Individuals to enterprise |
| Typical uses | AI & LLM apps, Research & academia, Marketing & PR | Financial services, Research & academia |
| Example use cases | Monitoring a fixed list of niche publications. Enriching articles with company and people data. | Fintech prototypes that show news beside charts. Student and personal investing projects. |
| How you get access | Free tier | Free tier |
Diffbot vs Finnhub: pros and cons
| Diffbot | |
|---|---|
| + | Extraction handles almost any news layout without custom parsers |
| + | The Knowledge Graph connects coverage to companies and people |
| + | A free plan with 10,000 credits and no card |
| + | Crawlbot can follow the specific publishers you pick |
| - | Knowledge Graph exports cost 25 credits per entity, which adds up |
| - | You assemble the news feed yourself instead of receiving one |
| - | The $299 Startup plan is high for small projects |
| Finnhub | |
|---|---|
| + | A generous free rate limit of 60 calls a minute |
| + | One key for prices, fundamentals and news keeps fintech prototypes simple |
| + | Official SDKs in many languages |
| + | WebSocket support for streaming quotes |
| - | News is basic, with headlines and summaries but no full text |
| - | The free key is non-commercial |
| - | The low-latency news stream is a premium add-on |
Who should choose Diffbot?
A typical fit: monitoring a fixed list of niche publications.
Turns any article URL into clean structured data linked to a Knowledge Graph. Paid access starts at $299/mo. Typical uses: AI & LLM apps, Research & academia, Marketing & PR, Financial services.
Who should choose Finnhub?
A typical fit: fintech prototypes that show news beside charts.
Company news bundled with quotes, fundamentals and estimates. Paid access is quote-based. Typical uses: Financial services, Research & academia.
Decision matrix: Diffbot vs Finnhub
| Your situation | Recommended choice |
|---|---|
| You want to start free before paying | Both |
| Your budget is at the lower end | Diffbot |
| You need full article text in the response | Diffbot |
| You need years of historical news | Diffbot |
| You need licensed premium or wire content | Neither; look at Factiva, AP or LexisNexis |
| You are wiring news into an LLM agent | Both work through plain REST calls |
Use case fit: Diffbot vs Finnhub
| Use case | Diffbot fit | Finnhub fit | Winner |
|---|---|---|---|
| AI & LLM apps | Strong | Limited | Diffbot |
| Research & academia | Strong | Strong | Both equally |
| Marketing & PR | Strong | Limited | Diffbot |
| Financial services | Strong | Strong | Both equally |
Verdict: Diffbot vs Finnhub
Diffbot (3.8/5) is the stronger overall choice as a news data source. Turns any article URL into clean structured data linked to a Knowledge Graph.
Finnhub (3.6/5) is worth a look if you need student and personal investing projects. If your situation matches that, Finnhub is a competitive option.
Related comparisons
Diffbot vs Finnhub FAQ
Is Diffbot better than Finnhub?
Diffbot (3.8/5) scores higher overall, but "better" depends on your use case. Diffbot's strongest advantage: extraction handles almost any news layout without custom parsers. Finnhub's strongest advantage: a generous free rate limit of 60 calls a minute.
How do Diffbot and Finnhub differ in pricing?
Diffbot: monthly credit plans, with paid access from $299/mo. Finnhub: free key; paid market-data bundles, priced by quote. Both offer some free access for testing.
Which is better for enterprise: Diffbot or Finnhub?
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 Diffbot and Finnhub?
What sets Diffbot apart: turns any article URL into clean structured data linked to a Knowledge Graph. What sets Finnhub apart: company news bundled with quotes, fundamentals and estimates. They also differ on entry price ($299/mo vs Varies by data bundle) and typical uses (AI & LLM apps, Research & academia vs Financial services, Research & academia).
Verify all details directly with each API before making a decision.