Create one skill in a workspace. Its kebab-case name must be unique and cannot be reserved by a built-in skill. Workspace API keys return 403; use a personal API key or scoped OAuth token.
OAuth scope: api:write.
POST
/api/v2/skillsX-API-Key<token>
Your Sim API key, personal or workspace-scoped. Generate one under Settings, then API Keys. Operations that reject workspace keys say so in their own description.
In: header
Request Body
application/json
Definition of a new skill.
TypeScript Definitions
Use the request body type in TypeScript.
Response Body
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
curl -X POST "https://www.sim.ai/api/v2/skills" \ -H "X-API-Key: YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "workspaceId": "a91c4b2e-6d3f-4e8a-b5c7-0d9e2f1a8c64", "name": "refund-policy", "description": "How support should handle refund requests", "content": "# Refund policy\\n\\nAlways check the order date first." }'{
"data": {
"id": "V1StGXR8Z5jdHi6BmyT",
"name": "refund-policy",
"description": "How support should handle refund requests",
"readOnly": false,
"createdAt": "2026-06-01T09:14:00.000Z",
"updatedAt": "2026-06-20T14:02:11.000Z",
"content": "# Refund policy\n\nAlways check the order date first."
}
}{
"error": {
"code": "BAD_REQUEST",
"message": "Invalid request"
}
}{
"error": {
"code": "UNAUTHORIZED",
"message": "Authentication required"
}
}{
"error": {
"code": "FORBIDDEN",
"message": "Insufficient workspace permissions",
"details": {
"code": "INSUFFICIENT_WORKSPACE_ROLE"
}
}
}{
"error": {
"code": "NOT_FOUND",
"message": "Not found"
}
}{
"error": {
"code": "CONFLICT",
"message": "The request conflicts with the current state of the resource"
}
}{
"error": {
"code": "PAYLOAD_TOO_LARGE",
"message": "Request body is too large"
}
}{
"error": {
"code": "UNSUPPORTED_MEDIA_TYPE",
"message": "Request body must be sent as application/json"
}
}{
"error": {
"code": "RATE_LIMITED",
"message": "API rate limit exceeded",
"details": {
"retryAfter": "2026-01-01T00:00:30.000Z"
}
}
}{
"error": {
"code": "INTERNAL_ERROR",
"message": "Internal server error"
}
}{
"error": {
"code": "SERVICE_UNAVAILABLE",
"message": "Service temporarily unavailable"
}
}