DELETE
/
v1
/
prompt-2025
/
{promptId}
/
{versionId}
curl -X DELETE "https://api.helicone.ai/v1/prompt-2025/prompt_123/version_456" \
  -H "Authorization: Bearer $HELICONE_API_KEY"

null
Permanently deletes a specific version of a prompt while keeping the prompt and other versions intact.

​
Path Parameters

​
promptId
string
required
The unique identifier of the prompt
​
versionId
string
required
The unique identifier of the prompt version to delete

​
Response

Returns null on successful deletion. 
curl -X DELETE "https://api.helicone.ai/v1/prompt-2025/prompt_123/version_456" \
  -H "Authorization: Bearer $HELICONE_API_KEY"

null