Webz.io Facts Check uses AI to identify factual claims in online text, then cross-checks them against sources on the web. Each claim is marked true, false, or unverified when no references are found.
Try it in the Playground.
Use either of the following request forms:
| Parameter | Description | Request |
|---|---|---|
uuid | UUID of an existing post. | GET |
post_text | Text to analyze; include the post title and text. | POST |
post_link | Link to the post. | POST |
date | Post publication date. | POST |
token | Your Webz.io token. | GET or POST |
GET https://api.webz.io/fact-check?token=[USER_TOKEN]&uuid=[POST_UUID]
POST https://api.webz.io/fact-check?token=[USER_TOKEN]&post_text=[POST_TITLE+POST_TEXT]&post_link=[POST_LINK]&date=[POST_PUBLISHED_DATE]
post_text must contain between 100 and 10,000 characters.
| Field | Description |
|---|---|
bias | Detected political bias of the site. |
claims[].claim | Claim extracted from the submitted post. |
claims[].verified | Verification result: true, false, or unverified. |
claims[].references | Sources used to verify the claim. |
claims[].references[].text | Supporting source text. |
claims[].references[].link | Supporting source link. |
{
"bias": "left",
"claims": [
{
"claim": "Iran's Supreme Leader Ayatollah Ali Khamenei has...",
"verified": "true",
"references": [
{
"text": "Iran leader Khamenei sees his inner circle hollowed out...",
"link": "https://www.reuters.com/world/middle-east/"
}
]
}
]
}| Status | Meaning |
|---|---|
204 | No relevant facts were found. |
400 | The request is invalid, including an invalid UUID or invalid text input. |
401 | The token is missing or incorrect. |
402 | There are not enough API calls available. |
Facts Check is a premium feature. Each request consumes five API calls.