Create a custom model
Create a new custom LLM model for the organization. One row per (credentialId, modelId) binding — a second create for a pair the organization already holds is refused with 409 model_already_added, unless it is a managed (aliased) model, which may share a binding.
POST
/api/modelsbetter-auth.session_token<token>
Cookie session from Better Auth. Requires X-Org-Id header for org-scoped routes.
In: cookie
Header Parameters
X-Org-Id?string
Organization ID. Required for cookie auth. Not needed for API key auth (org resolved from key).
Format
uuidRequest Body
application/json
curl -X POST "https://your-instance/api/models" \ -H "Content-Type: application/json" \ -d '{ "modelId": "string", "credentialId": "string" }'{
"id": "string",
"label": "string",
"apiShape": "string",
"providerId": "string",
"provider_name": "string",
"pi_provider": "string",
"pi_dialect": {},
"base_url": "string",
"modelId": "string",
"generation": {
"temperature": "supported",
"reasoning": {
"supported": "supported",
"temperature_compatible": "supported",
"adaptive": true,
"levels": {
"property1": "supported",
"property2": "supported"
}
}
},
"input": [
"text"
],
"contextWindow": 0,
"maxTokens": 0,
"reasoning": true,
"enabled": true,
"is_default": true,
"needs_reconnection": true,
"aliased": true,
"iconUrl": "string",
"source": "built-in",
"credentialId": "string",
"cost": {
"input": 0,
"output": 0,
"cacheRead": 0,
"cacheWrite": 0,
"tiers": [
{
"inputTokensAbove": 0,
"input": 0,
"output": 0,
"cacheRead": 0,
"cacheWrite": 0
}
]
},
"created_by": "string",
"createdAt": "2019-08-24T14:15:22Z",
"updatedAt": "2019-08-24T14:15:22Z"
}{
"type": "https://docs.appstrate.dev/errors/validation-failed",
"title": "Validation Failed",
"status": 400,
"detail": "name: Invalid input: expected string, received undefined (+2 more)",
"code": "validation_failed",
"request_id": "req_abc123",
"errors": [
{
"field": "name",
"code": "required",
"message": "Invalid input: expected string, received undefined"
},
{
"field": "email",
"code": "invalid_format",
"message": "Invalid email address"
},
{
"field": "age",
"code": "invalid_type",
"message": "Invalid input: expected number, received string"
}
]
}{
"type": "https://docs.appstrate.dev/errors/unauthorized",
"title": "Unauthorized",
"status": 401,
"detail": "Invalid or missing session",
"code": "unauthorized",
"request_id": "req_abc123"
}{
"type": "https://docs.appstrate.dev/errors/forbidden",
"title": "Forbidden",
"status": 403,
"detail": "Insufficient permissions",
"code": "forbidden",
"request_id": "req_abc123"
}{
"type": "http://example.com",
"title": "string",
"status": 0,
"detail": "string",
"instance": "string",
"code": "string",
"request_id": "string",
"param": "string",
"retry_after": 0,
"errors": [
{
"field": "string",
"code": "string",
"message": "string",
"title": "string",
"candidate_connections": [
{
"id": "string",
"label": "string",
"account_id": "string",
"owned_by_actor": true,
"needs_reconnection": true
}
],
"connection_id": "string",
"missing_scopes": [
"string"
],
"owned_by_actor": true,
"required_scopes": [
"string"
],
"auth_key": "string",
"required_auth_key": "string",
"available_auth_keys": [
"string"
],
"connect_url": "http://example.com",
"expiresAt": "2019-08-24T14:15:22Z",
"packageId": "string"
}
]
}