Webz.io logoDocs
Overview
Start Here
News, Blogs, Forums & Reviews APIs
What Are the News, Blogs & Forums APIs
News API
Introduction
Quickstart
Filters
Post Data Fields
Topics Reference
News API Lite
Introduction
Output Reference
Error Handling
Blogs API
Forums API
API Reference
Reviews API
News Search API
Firehose
Cyber API
Data Breaches API
News, Blogs, Forums & Reviews Archive
Web Content API (Deprecated)
Webz.io logo
Overview
Start Here
News, Blogs, Forums & Reviews APIs
What Are the News, Blogs & Forums APIs
News API
Introduction
Quickstart
Filters
Post Data Fields
Topics Reference
News API Lite
Introduction
Output Reference
Error Handling
Blogs API
Forums API
API Reference
Reviews API
News Search API
Firehose
Cyber API
Data Breaches API
News, Blogs, Forums & Reviews Archive
Web Content API (Deprecated)

On this page

No sections

Webz.io DocumentationContact our team© 2026

Introduction

Facts-Checking Webz.io’s on-demand fact checking uses AI to automatically identify factual claims in online text, such as news articles, blog posts, or forum posts. Each claim is then cross-verified by searching the web for other sources that support or refute it. The output clearly indicates whether the claim is Verified, False, or Unverified (when no references are found).

Want to see it in action? Try it out in our Playground environments.

Endpoint

GET/POST

 https://api.webz.io/fact-check

API Calls

It can be used with HTTP GET and POST requests.

The table below outlines the required fields for each call, depending on the HTTP request type:

ParamDescriptionHTTP requestComment
uuidThe post's uuidGET
post_textThe text to analyzePOSTexpected to includeboth 'title' + 'text' fields
post_linkThe link to the postPOST
datePost's published datePOST
tokenAccess TokenGET, POST

GET

https://api.webz.io/fact-check?token=[USER_TOKEN]&uuid=[POST_UUID]

Limitations

Fact-checking requires an input length of no less than 100 and no more than 10,000 characters.

API Credits

For Fact Check API usage, Pay-as-you-go users are charged $0.15 per API call, while subscription users are charged the equivalent of 5 API calls from their purchased API call package for each Fact Check API call.

Last updated: August 19, 2026
PreviousNews API LiteNextOutput Reference