Tagging STT Requests
tag string
Pre-recorded Streaming:NovaStreaming:Flux All available languages
Deepgram’s Tagging feature allows you to label your API requests for the purpose of identification during usage reporting. You can also apply tags to API Keys; if you do, any tags applied to the API Key running the API request will also be applied to the request itself.
Enable Feature
Section titled “Enable Feature”To enable Tagging, when you call Deepgram’s API, add a tag parameter in the query string and set it to the tag you would like to recognize:
tag=VALUE
To transcribe audio from a file on your computer, run the following cURL command in a terminal or your favorite API client. Please be aware that once you have set a tag, you cannot modify it.
curl \
--request POST \
--header 'Authorization: Token YOUR_DEEPGRAM_API_KEY' \
--data-binary @youraudio.wav \
--url 'https://api.deepgram.com/v1/listen?tag=VALUE'Filter Requests by Tag
Section titled “Filter Requests by Tag”Once applied, you can identify tags associated with API requests returned by the Get All Requests, Get Request, and Get Fields endpoints.
You can also directly query requests by tag at the Summarize Usage endpoint.
curl \
--request GET \
--header 'Authorization: Token YOUR_DEEPGRAM_API_KEY' \
--header 'content-type: application/json' \
--url 'https://api.deepgram.com/v1/projects/PROJECT_ID/usage?tag=TEST'Tag Limits
Section titled “Tag Limits”Tags are limited to 128 characters per tag and 500 unique tags per day.
Special Considerations
Section titled “Special Considerations”White Space or Special Characters
Section titled “White Space or Special Characters”If your tag or extra metadata includes spaces or special characters, be sure to URL encode it:
tag=marketing%20team or tag=marketing+team
Apply Multiple Instances
Section titled “Apply Multiple Instances”To apply multiple tags or multiple extra key-value pairs, submit the query parameter multiple times in your API request:
tag=marketing&tag=legal
Comparison to Extra Metadata
Section titled “Comparison to Extra Metadata”Extra Metadata is a similar feature to Tagging. Where Tagging is primarily intended for tracking and filtering usage, Extra Metadata is useful for passing data to downstream processing steps.
Below is a comparison table summarizing the main differences between the two features:
| Tagging | Extra Metadata | |
|---|---|---|
| Primarily for passing data to downstream processing steps | ❌ | ✅ |
| Primarily for tracking usage | ✅ | ❌ |
| Configurable per request | ✅ | ✅ |
| Configurable per API key | ✅ | ❌ |
| Character limit per value | 128 chars | 2048 chars |
| Can be used to filter usage | ✅ | ❌ |
| Can specify a key in a key-value pair | ❌ | ✅ |
| Can specify a value in a key-value pair | ✅ | ✅ |