# GET /license/validateserialstring

> Check the format of a serial number, two upper case letters, a dash and ten digits such as XX-0000000000: returns 200 if valid, or 400 with the rule if not.

- **Product:** DS Server
- **Section:** Documentation
- **Kind:** Endpoint
- **Path:** DS Server > API Reference > Web API > Licensing > /validateserialstring > GET /license/validateserialstring
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/web-api/licensing/validateserialstring/get/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/web-api/licensing/validateserialstring/get/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/web-api/licensing/validateserialstring/get/llms-full.txt

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## On This Page

- [Description](https://docs.textcontrol.com/ds-server/reference/web-api/licensing/validateserialstring/get/#description)
- [Examples](https://docs.textcontrol.com/ds-server/reference/web-api/licensing/validateserialstring/get/#examples)
- [Authorization](https://docs.textcontrol.com/ds-server/reference/web-api/licensing/validateserialstring/get/#authorization)
- [Request Parameters](https://docs.textcontrol.com/ds-server/reference/web-api/licensing/validateserialstring/get/#request-parameters)
- [Success Response](https://docs.textcontrol.com/ds-server/reference/web-api/licensing/validateserialstring/get/#success-response)
- [Error Response](https://docs.textcontrol.com/ds-server/reference/web-api/licensing/validateserialstring/get/#error-response)

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## Nearby

- **Previous:** [/license/validateserialstring](https://docs.textcontrol.com/ds-server/reference/web-api/licensing/validateserialstring/llms.txt)
- **Next:** [/license/requeststring](https://docs.textcontrol.com/ds-server/reference/web-api/licensing/requeststring/llms.txt)