Diffbot
Web data APIs that extract structured JSON from pages, with a free plan of 10,000 credits a month.
Is Diffbot free?
Yes, Diffbot gives free credits. What you get: Refilling credits: 10,000 credits a month, 5 requests a minute. Free limits: 1 credit per extracted page; 1 credit per web search; 25 credits per Knowledge Graph entity. The free allowance renews monthly. Watch out: free plan: 5 requests a minute. Verified on diffbot.com.
Free plan at a glance
- Includes
- 10,000 credits a month
- 1 credit per extracted page
- 1 credit per web search
- 25 credits per Knowledge Graph entity
- 5 requests a minute
The free plan includes all four APIs.
- Duration
- Free forever
- Allowance
- Refills monthly
- Commercial use
- Allowed on the free plan
How to get it free
Free account- Open the pricing page and choose Start for free
- Set up your API token (see Authentication in the docs)
Good to know
- Free plan: 5 requests a minute
- Crawl needs the Plus plan
diffbot.com, Checked Source
Overview
Diffbot reads web pages with its own AI models and returns structured data through Extract, Crawl, Natural Language, Knowledge Graph and Web Search APIs. The free plan includes all four main APIs.
Free vs paid
| Free | Startup | |
|---|---|---|
| Price | $0 | $299/mo |
| Includes |
| Plan details |
Key features
- Extract API turns a page URL into structured JSON
- Knowledge Graph queries across companies, people and news
- Natural Language API resolves entities, relationships and sentiment from text
- Web Search API with no ads or telemetry
- MCP server and agent skills for AI agents
Best for
- People
- Developers building AI apps, Data teams collecting web data, Researchers
Limitations
- Free plan is limited to 5 requests a minute
- Crawl is on the Plus plan and up
Screenshot
FAQ
- Is Diffbot free?
- Yes. Diffbot offers free credits: Refilling credits: 10,000 credits a month, 5 requests a minute. We last checked diffbot.com's pricing page on 2026-11-12.
- What does the Diffbot free credits include?
- The Diffbot free credits include: 1 credit per extracted page; 1 credit per web search; 25 credits per Knowledge Graph entity. The free allowance renews monthly. Source: https://www.diffbot.com/pricing (checked 2026-11-12).
- How do I get Diffbot for free?
- Steps: Open the pricing page and choose Start for free; Set up your API token (see Authentication in the docs). Start at https://www.diffbot.com/pricing (checked 2026-10-22).
- What's the catch with Diffbot's free credits?
- Free plan: 5 requests a minute. Crawl needs the Plus plan. Checked 2026-10-22.
- How much does Diffbot cost after the free credits?
- The cheapest paid plan is the Startup plan, at $299 a month, billed monthly. We checked diffbot.com's pricing page on 2026-10-22.Source: diffbot.com/pricing
- What are free alternatives to Diffbot?
- Browse AI (free plan), Firecrawl (free plan) and Crawl4AI (free credits) are free alternatives. We checked their free offers on 2026-11-12. See all 4 on our Diffbot alternatives page.
- How many credits does the free plan include?
- The free plan includes 10,000 credits a month with all four main APIs and a limit of 5 requests a minute.Source: diffbot.com/pricing
- What does one credit buy?
- Extracting one page costs 1 credit, one web search costs 1 credit, one Natural Language document costs 1 credit, and one Knowledge Graph entity record costs 25 credits.Source: diffbot.com/pricing
Free alternatives
Browse AI
Scrape and monitor websites with no-code AI robots.
Free forever, 50 credits a month (about 50 pages or 500 rows), unlimited robots
Firecrawl
Turn websites into LLM-ready data with crawl and scrape APIs.
Free forever, 1,000 credits a month, 2 concurrent requests, low rate limits
Crawl4AI
Open-source LLM-friendly web crawler.
Free credits, 1,000 free credits a month on the hosted API; open source to self-host
Thunderbit
AI web scraper Chrome extension.
Free forever
More free Dev Infrastructure & AI APIs tools
- Lightning AI
Free forever, 1 CPU Studio free 24/7, plus up to 30 free credits (one-time)
- Ultralytics HUB
Free forever, Free Platform plan: a $5 one-time credit ($25 with a work email)
- Pydantic Logfire
Free forever, 10M telemetry records per month, 3 projects, 1 seat, 30-day retention
- Roboflow
Free forever, 10 credits a month; projects stay private unless you publish them to Roboflow Universe
- Helicone
Free forever, Monthly requests
- LiveKit
Free forever, Free Build plan
Sources
- Free offer
- Verified on diffbot.com/pricing
…credits / month All four APIs included 1…
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Checked against
Added by our team. We check that a free option exists and record the date; signing up is between you and Diffbot, so read their privacy policy and terms first.
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