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Welcome - Amazon Lex
Amazon Lex Model Building V2Amazon Lex Runtime V2

Welcome

Amazon Lex Model Building V2

This document provides detailed information about the Amazon Lex V2 API actions and their parameters.

For information about the IAM access control permissions you need to use this API, see Identity-based policies for Amazon Lex V2.

Amazon Lex V2 Model Building V2 operations let you build and manage bots.

If you use a custom HTTP client to call Amazon Lex Model Building V2 operations, you must set the "Content-Type" HTTP header to "application/x-amz-json-1.1". Otherwise, you receive an HTTP 404 - UnknownOperationException in the response.

Amazon Lex Model Building V2 operations return the responses with the "application/x-amz-json-1.1" content type.

You can use AWS SDKs to access Amazon Lex V2 APIs using your favorite programming language. The SDKs automatically perform useful tasks for you, such as:

  • Cryptographically sign your service requests

  • Retry requests

  • Handle error responses

The following resources provide additional information about the Amazon Lex V2 Model Building API.

Amazon Lex Runtime V2

The following resources provide additional information about the Amazon Lex Runtime V2 API, which you use to send user input to a bot and process conversations at runtime: