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POST
/
llm
/
v1
/
chat
/
completions
curl -X POST "https://api.case.dev/llm/v1/chat/completions" \ -H "Authorization: Bearer $CASEDEV_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "messages": [ { "role": "system", "content": "<string>" } ] }'
{
  "id": "<string>",
  "object": "chat.completion",
  "created": 123,
  "model": "<string>",
  "choices": [
    {
      "index": 123,
      "message": {
        "role": "<string>",
        "content": "<string>"
      },
      "finish_reason": "<string>"
    }
  ],
  "usage": {
    "prompt_tokens": 123,
    "completion_tokens": 123,
    "total_tokens": 123,
    "cost": 123
  }
}

Documentation Index

Fetch the complete documentation index at: https://docs.case.dev/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
Authorization
string
header
required

API key starting with sk_case_

Body

application/json
​
messages
object[]
required

List of messages comprising the conversation

​
model
string

Model to use for completion. Defaults to casemark/core-large if not specified

Example:

"casemark/core-large"

​
max_tokens
integer

Maximum number of tokens to generate

Example:

1000

​
temperature
number

Sampling temperature between 0 and 2

Example:

0.7

​
stream
boolean

Whether to stream back partial progress

Example:

false

​
casemark_show_reasoning
boolean

CaseMark-only: when true, allows reasoning fields in responses. Defaults to false (reasoning is suppressed).

Example:

false

​
top_p
number

Nucleus sampling parameter

​
frequency_penalty
number

Frequency penalty parameter

​
presence_penalty
number

Presence penalty parameter

Response

Successful completion response

​
id
string

Unique identifier for the completion

​
object
string
Example:

"chat.completion"

​
created
integer

Unix timestamp of completion creation

​
model
string

Model used for completion

​
choices
object[]
​
usage
object