# Title

## Docs
- Supplier API [Guides](https://developer.opnion.io/guides.md): 

## API Docs
- Supplier API [Get Global Definitions](https://developer.opnion.io/global-definitions.md): Get Global Definitions
- Supplier API [Question Library](https://developer.opnion.io/question-library.md): This API allows suppliers to obtain a comprehensive list of survey questions tailored to a specified country and language, as indicated in the request. These questions are utilized as survey criteria to effectively align user profiles with the corresponding survey requirements.
- Supplier API [Answer Library ](https://developer.opnion.io/answer-library.md): This API allows you to obtain a comprehensive list of answer options for a specific question, based on the provided question key, country, and language parameters.
- Supplier API [Get Available Surveys](https://developer.opnion.io/get-available-surveys.md): This API enables suppliers to access their associated survey inventory, providing a list of surveys that are currently active.
- Supplier API [Get Survey By Id](https://developer.opnion.io/get-survey-by-id.md): This API enables suppliers to retrieve details of a survey by its unique survey ID, regardless of whether the survey is active, paused, or closed.
- Supplier API [Get Survey Transactions Data](https://developer.opnion.io/get-survey-transactions-data.md): Suppliers can use this API to retrieve transactional data for each survey, including the PID (panelist ID), survey transaction status, IP address, survey start time, survey end time, and other relevant details.
- Supplier API [Get Survey Stats](https://developer.opnion.io/get-survey-stats.md): Suppliers can use this API to access real-time statistics for their allocated surveys, including metrics like the number of clicks, completes, failures, over-quotas, revenue, and other traffic-related data.
- Supplier API [Get Recontacts](https://developer.opnion.io/get-recontacts.md): The API helps suppliers determine which users are eligible to attend a survey based on the following parameters: