# 23 Telecom SMS API

> REST API for sending SMS worldwide: message dispatch, delivery tracking, statistics, balance, pricing and webhooks. Authentication via X-API-Key header.

Base URL: https://restlink23telecom.com/api/v1
Authentication: X-API-Key header (create keys in the portal under Settings > API Keys)
All timestamps are UTC ISO 8601. Account currency is typically EUR.
OpenAPI spec: https://docs.23telecom.co.uk/openapi.yaml

## Documentation Sets

- [Abridged documentation](https://docs.23telecom.co.uk/llms-small.txt): a compact version of the documentation for 23 Telecom SMS API, with non-essential content removed
- [Complete documentation](https://docs.23telecom.co.uk/llms-full.txt): the full documentation for 23 Telecom SMS API

## Notes

- The complete documentation includes all content from the official documentation
- The content is automatically generated from the same source as the official documentation