# postback-api This spec is for Postback-API Version: 1.0.0 ## Servers ``` https://in.treasuredata.com ``` ## Download OpenAPI description [postback-api](https://api-docs.treasuredata.com/_bundle/apis/postback_api.yaml) ## Other ### POST Postback API - [POST /postback/v3/event/{database_name}/{table_name}](https://api-docs.treasuredata.com/apis/postback_api/other/postpostbackapi.md): Send data in POST payload. Every request must contain authentication information. Authentication can be provided in two ways: 1. In header with the X-TD-Write-Key: format 2. In URL Path with the ?td_write_key= format In case both header and URL parameter are provided, the header takes precedence.