---
title: "Create skill"
method: POST
path: "/v1/skills"
tags: ["Skills"]
---

# Create skill

`POST /v1/skills`

## Request

- Base URL: `https://api.sandbase.ai`
- URL: `https://api.sandbase.ai/v1/skills`
- Auth: one of:
  - HTTP bearer
  - API key in header `X-API-Key`

Upload a ZIP bundle (one files part, maximum 5 MiB) containing a SKILL.md with name and description frontmatter. Creates version 1. Idempotency-Key is optional.

## Headers

- `Idempotency-Key` string

## Response `201`

Skill created

- Skill
  - `id` string, required: Skill ID (`skl_` prefix).
  - `object` 'skill', required
  - `name` string, required
  - `description` string, required
  - `default_version` string, required
  - `latest_version` string, required
  - `status` string, required
  - `visibility` 'public' | 'private', required
  - `row_version` integer, required
  - `metadata` object, required
  - `created_at` integer, required
  - `updated_at` integer, required
  - `failure_code` string

## Other responses

- `400`: invalid_request (malformed JSON, unknown fields, failed validation, or an unsupported option)
- `401`: unauthorized: missing, malformed, or conflicting API key headers
- `402`: spending_limit_exceeded: API key spending limit or organization balance exhausted
- `403`: insufficient_scope (scoped key) or org_disabled
- `409`: conflict: stale row_version, lifecycle state, or Idempotency-Key reused with a different body
- `502`: executor_rejected or executor_contract_error from the execution layer
- `503`: authorization_unavailable, admission_unavailable, executor_unavailable, storage_unavailable, or internal_error

---

[API](https://skmtc.dev/sandbase/apis/sandbase-api.md) · [All operations](https://skmtc.dev/sandbase/apis/sandbase-api/llms.txt) · [OpenAPI document](https://skmtc.dev/sandbase/apis/sandbase-api/revisions/d40df2467ba2?raw)