Builder infrastructure
Diffbot
Web knowledge and extraction APIs
Diffbot offers APIs that transform public-web content into structured knowledge.
Vendor's own claim
What Diffbot is
Vendor's own claimDiffbot is a web-data and knowledge-graph platform for applications that need extraction, crawling, structured search, enrichment, or natural-language processing over the public web. It is developer infrastructure: the product value comes from integrating API calls and deciding how their output will be used in a downstream research, data, or agent system.
What it can do
Vendor's own claim- Extract API for classifying and extracting entities from web pages
- Crawl API for walking a site and producing a dataset
- Search/DQL API for querying public-web knowledge
- Enhance API for supplementing existing data with public-web data
- Natural Language API for entities, relationships, facts, and sentiment
- Diffbot skills mentioned in the official documentation
Who it is for
Our readProduct, data, research, and GTM-engineering teams that need a programmable public-web knowledge layer and can meter usage by operation and incorporate outputs into their own applications or workflows.
When to choose something else
Our readDiffbot is a poor fit for a team that wants a fixed-cost, ready-made prospect list rather than an API/data layer. Its credit model makes different operations materially different in cost: Extract and web search use 1 credit per action, while a Knowledge Graph entity export uses 25 credits and a facet-query record uses 100; crawling is only available on Plus and above. Buyers should model the exact query and export pattern before assuming the Free or Startup allotment will cover production usage.
Implementation considerations
Our readSetup assessment: 1h
The docs direct developers to authenticate and select an API, which is a reasonable first integration. Production use needs a target set of pages or queries, an output schema, credit monitoring, and error handling in the receiving workflow.
Prerequisites
- Diffbot account and API token
- A downstream application, data workflow, or agent harness
- A defined usage model for credits and rate limits
Published pricing
From official docs| Plan | Price | Included |
|---|---|---|
| Free | $0/month | 10,000 credits/month; 5 requests/minute |
| Startup | $299/month | 250,000 credits/month; overage at $0.001/credit; 5 requests/second |
| Plus | $899/month | 1,000,000 credits/month; overage at $0.0009/credit; 25 active crawls; 3 user seats; 25 requests/second |
| Enterprise | Custom | Custom credit allotment, 100+ active crawls, custom user seats, and 25+ requests/second |
Verify before you adopt it
- Exact API authentication, endpoint schemas, agent-skills repository, and MCP availability
- A machine-readable OpenAPI specification was not included in the reviewed source set.