Relation extraction

Identifies and extracts connections between entities.

POST https://rex7.p.rapidapi.com/rex

Designed to uncover valuable insights by extracting structured information from unstructured text data.

Headers

Name	Type	Description
X-RapidAPI-Key*	String	Your API key
X-RapidAPI-Host*	String	rex7.p.rapidapi.com
content-type*	String	application/json

Request Body

Name	Type	Description
text*	String	Pass text for processing via this parameter. The maximum size in tokens is 3000, where 1 token is approximately 4 characters.
relations*	String list	Relations which will be used in the processing of the text.
scorer	Boolean	If set to true, the response will contain probability scores for each relation. The default value is set to false.
all	Boolean	This parameter controls the number of entities included in the response. In most cases, the best results are achieved by including only the target entities. However, if necessary, the parameter can be set to true and more entities will be included. The default value is set to false. Ignored if entities provided.
threshold	Float	It sets a relation threshold. If the score is below this threshold, the relation will not be included in the response. The default value is 0.0. Ignored if the scorer parameter is set to false.
entities	Objects list	Define what specific entities will be processed, and others will be skipped.
pairs filter	Objects list	Each tuple represents the source and target entity labels. If this parameter is provided and not empty, any relation that doesn't have a specified pair of source and target will be ignored. Parameter ignored if 'entities' parameter not provided.
relations filter	String	Map relations to entity pairs. Each relation can be mapped to multiple pairs. Each tuple represents the source and target entity labels. Any relation with a pair of sources and target which not included in to filter will be ignored.

200: OK Request is successful.

The model has successfully analyzed the input text and labels.

400: Bad Request Invalid or incomplete request.

This may be due to missing or improperly formatted parameters. Check for parameter type mismatches, Invalid characters or bad code formatting.

401: Unauthorized Invalid authorization.

Your request lacks proper authorization. Ensure your RapidAPI key is correct and included in the request headers.

404: Not Found Invalid payload or header.

Check for parameter type mismatches, Invalid characters or bad code formatting. The required header might be wrong, such as X-RapidAPI-Host.

413: Payload Too Large Payload size exceeded.

You've gone over the 15 KB limit with your submitted data. Please see our limits page for proper API request sizes. If you need to increase your limit, our support team is here to help.

500: Internal Server Error Internal server error.

An unexpected issue occurred on our end. We are notified and investigating. If this issue persists or follows a pattern, please contact our support.