> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.prolific.com/api-reference/bonuses/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.prolific.com/_mcp/server.

# Bonuses

Pay bonuses for exceptional submissions or follow-up research. Bonuses can be created in bulk for multiple participants in the same study.

![Bonuses flow](/_fern-img/e97f0b0620f22a7d200e303e16d322907dd1b1f17a89f09a8d3ac5cae3cbb4fd.webp)

> **Note**
>
> We do not support concurrent requests. You can only pay a bonus to one participant at a time via our web application. You can bulk pay bonuses via the API. If you see any issues with your bulk bonus payment, please contact the support team by submitting a request.


## API Docs

- Bonuses [Set up bonuses](https://docs.prolific.com/api-reference/bonuses/create-bonus-payments.md)
- Bonuses [Pay bonuses](https://docs.prolific.com/api-reference/bonuses/pay-bonus-payments.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://docs.prolific.com/api-reference/bonuses/openapi.json)
- [OpenAPI YAML](https://docs.prolific.com/api-reference/bonuses/openapi.yaml)