Diffbot
The company lists its address as 333 Ravenswood Ave, Menlo Park, CA 94025.
What it is
Diffbot uses AI models to turn unstructured web content into linked knowledge through several data services. Extract classifies a page and returns structured JSON based on a standard page type and ontology. Crawl starts from seed URLs, visits sites, and collects extracted pages into structured datasets. Natural Language resolves entities, relationships, coreferences, salience, and sentiment in plain text. The Knowledge Graph supports structured queries about companies, people, news, and other public web entities. Web Search provides an API and a self-hostable search index designed for a machine or cloud, including offline use; its page says closed media sites such as Facebook, Reddit, LinkedIn, and Instagram are generally off limits. The Free plan includes all four APIs, 10,000 credits per month, and up to five requests per minute, with no credit card required. It returns a 429 Quota Exceeded response after the credit allowance or rate limit is reached, and quotas reset at the start of each billing period. Startup costs $299.00 per month and includes 250,000 credits per month. Diffbot lists API, self-hosted, and web platforms.
For and against
For
- Free plan includes all four APIs.
- Free plan provides 10,000 credits monthly.
- No credit card is required for the free plan.
- Web Search supports offline use.
- Python and TypeScript libraries are listed.
Against
- Free plan is limited to five requests per minute.
- Free plan has a 10,000-credit monthly allowance.
- Closed media sites are generally off limits.
- Paid Startup plan costs $299.00 per month.
The verdict
Diffbot brings page extraction, crawling, natural-language analysis, knowledge graph queries, and web search into one offering. The free plan has clear credit and rate limits, while paid plans start with Startup at $299.00 per month.
Who it suits
Diffbot may suit companies seeking structured data from public web content through APIs, crawling, or a self-hostable search index. The free tier provides a way to use its four APIs within its monthly credit and request limits.
Plans and prices
Free
All four APIs included · 5 requests / min · No credit card required
Read 7 Oct 2026 · diffbot.com
Startup
250,000 credits / month · Overage at $0.001 / credit · All four APIs included · 5 requests / sec
Read 7 Oct 2026 · diffbot.com
Plus
1,000,000 credits / month · Overage at $0.0009 / credit · Access to Crawl (25 active) · 3 user seats
Read 7 Oct 2026 · diffbot.com
Enterprise
Custom credit allotment · 100+ active crawls · Custom user seats · Dedicated support
Read 7 Oct 2026 · diffbot.com
On the record
- Crawl
- Crawl spiders sites from seed URLs and extracts pages into structured datasets.diffbot.com · read 7 Oct 2026
- Extract
- Extract classifies a page and returns structured JSON based on a standard page type and ontology.diffbot.com · read 7 Oct 2026
- Integrations
- The documentation lists Python and TypeScript libraries and agent skills as interfaces.diffbot.com · read 7 Oct 2026
- Knowledge Graph
- The Knowledge Graph supports structured queries about companies, people, news, and other public web entities.diffbot.com · read 7 Oct 2026
- Natural Language
- The Natural Language service resolves entities, relationships, coreferences, salience, and sentiment in plain text.diffbot.com · read 7 Oct 2026
- Plan limits
- The Free plan returns a 429 Quota Exceeded response after 10,000 credits or its rate limit, and quotas reset at the start of each billing period.diffbot.com · read 7 Oct 2026
- Security and privacy
- Diffbot’s privacy policy says it issues subscribers a unique API key and collects login, query history, and API call data to provide the services.diffbot.com · read 7 Oct 2026
- Support
- Technical and implementation help is available at [email protected], while account, billing, and sales inquiries go to [email protected] or the listed phone number.diffbot.com · read 7 Oct 2026
- Target users
- Diffbot says its services are used by companies worldwide to access unstructured public web data at scale.diffbot.com · read 7 Oct 2026
- Web Search
- Diffbot Web Search offers an API and self-hostable search index designed to run on a machine or cloud, including offline use.diffbot.com · read 7 Oct 2026
- Web Search limit
- The Web Search page says closed media sites such as Facebook, Reddit, LinkedIn, and Instagram are generally off limits.diffbot.com · read 7 Oct 2026
- What it does
- Diffbot builds AI models that read and transform the unstructured web into linked knowledge.diffbot.com · read 7 Oct 2026
