# OpenThesaurus

- **Website:** <https://openthesaurus.de>
- **Primary alias:** `openthesaurus.de`

## Description

OpenThesaurus is a brand that provides a comprehensive and user-friendly platform for accessing word lists, synonyms, and associations. With their Webservice and API, users can easily query data from OpenThesaurus using an HTTP interface. The platform supports searches for words, partial words, and similarly spelled words. However, it does not support Wikipedia/Wiktionary searches. The OpenThesaurus API is freely available, with the only conditions being a visible link to openthesaurus.de and including contact information in the User-Agent header. There is a limit of 60 requests per minute from the same IP address. For mass queries, it is recommended to use the database download instead of the API. Users planning to use the API long-term are encouraged to contact OpenThesaurus for updates on possible changes to the output format. Overall, OpenThesaurus offers a valuable resource for finding synonyms and associations, making it a must-have tool for writers, linguists, and language enthusiasts.

## Industries

- 🗺 Reference Materials
- 🗺 Dictionaries and Encyclopedias _(under Reference Materials)_

## Logos & icons

- logo _(primary)_ — PNG — [download](https://cdn.brandfetch.io/idP_Z1v5kY/w/341/h/93/theme/dark/logo.png?c=1bxid64Mup7aczewSAYMX&t=1773599864759)

## Colors

| Name | Hex | Theme |
| --- | --- | --- |
| Green Haze | #00a55d | dark |
| Casablanca | #f8b948 | light |
| Lochmara | #0071bc | accent |

## Fonts

- Arial — asset _(custom)_

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_Source: <https://brandfetch.com/openthesaurus.de>_
_See [/llms.txt](/llms.txt) for a full list of agent-readable pages, and [/auth.md](/auth.md) for how agents authenticate._