OpenAI

OpenAI Skills API

The Skills API surfaces OpenAI's Agent Skills — discoverable folders of instructions, scripts, and resources that agents (notably Codex) can use to perform specific tasks. Operations cover creating, retrieving, updating, deleting, and versioning skills as well as retrieving skill content. The companion github.com/openai/skills repository hosts a catalog of system, curated, and experimental skills.

GitHub OpenAPI

Operations 11

Each operation below carries the questions people ask an LLM about it and the instructions they give an agent to run it. Generated by API Evangelist overlay

POST /skills Create a new skill from files · Create a new skill #
Ask an LLM
“How do I upload a brand-new skill for my agents to use?”
“What files do I need to send to create a skill?”
Tell an agent
Create a new skill from files {files}.
Upload {files} as a brand-new skill.
GET /skills List the skills in my project · List all skills for the current project #
Ask an LLM
“Which skills have been uploaded to my current project?”
“Can I list my project's skills newest first?”
Tell an agent
List all the skills in this project.
Show {limit} project skills ordered {order}.
DELETE /skills/{skill_id} Delete a skill · Delete a skill by its ID #
Ask an LLM
“How do I remove a skill entirely, all versions included?”
“Can I delete a skill I no longer want agents to use?”
Tell an agent destructive · confirm first
Delete skill {skill_id}.
Remove skill {skill_id} from the project entirely.
GET /skills/{skill_id} Get a skill's details · Get a skill by its ID #
Ask an LLM
“What is the current default version of one of my skills?”
“Can I look up a skill's metadata by its ID?”
Tell an agent
Show skill {skill_id}.
Check which version is the default for skill {skill_id}.
POST /skills/{skill_id} Change which version of a skill is the default · Update the default version pointer for a skill #
Ask an LLM
“How do I roll a skill back to an earlier version?”
“Can I promote a new version so it becomes the skill's default?”
Tell an agent
Make version {default_version} the default for skill {skill_id}.
Roll skill {skill_id} back to version {default_version}.
GET /skills/{skill_id}/content Download a skill's default zip bundle · Download a skill zip bundle by its ID #
Ask an LLM
“Can I download the zip bundle for a skill's current default?”
“Where do I get the packaged files of a skill I uploaded?”
Tell an agent
Download the zip bundle for skill {skill_id}.
Get the packaged files of skill {skill_id} as a zip.
POST /skills/{skill_id}/versions Publish a new version of a skill · Create a new immutable skill version #
Ask an LLM
“How do I upload an updated version of an existing skill?”
“Can I make a new skill version the default as I publish it?”
Tell an agent
Publish {files} as a new version of skill {skill_id}.
Add a new version of skill {skill_id} from {files} and set default to {default}.
GET /skills/{skill_id}/versions List the versions of a skill · List skill versions for a skill #
Ask an LLM
“What versions of a skill have been published?”
“Can I see a skill's version history oldest first?”
Tell an agent
List the versions of skill {skill_id}.
Show the version history of skill {skill_id} ordered {order}.
GET /skills/{skill_id}/versions/{version} Get one specific version of a skill · Get a specific skill version #
Ask an LLM
“What are the details of a particular version of my skill?”
“Can I inspect an older skill version by its number?”
Tell an agent
Show version {version} of skill {skill_id}.
Get the metadata of skill {skill_id} at version {version}.
DELETE /skills/{skill_id}/versions/{version} Delete one version of a skill · Delete a skill version #
Ask an LLM
“Can I delete a bad version of a skill but keep the others?”
“How do I remove a single skill version?”
Tell an agent destructive · confirm first
Delete version {version} of skill {skill_id}.
Remove just version {version} from skill {skill_id}.
GET /skills/{skill_id}/versions/{version}/content Download the zip bundle of a skill version · Download a skill version zip bundle #
Ask an LLM
“Can I download the files of an older skill version rather than the default?”
“Where do I get the zip for one specific version of a skill?”
Tell an agent
Download the zip for version {version} of skill {skill_id}.
Get skill {skill_id}'s version {version} bundle as a zip file.

Documentation

📖
Documentation
https://platform.openai.com/docs/api-reference
📖
Documentation
https://platform.openai.com/docs/assistants/overview
📖
Documentation
https://platform.openai.com/docs/api-reference/assistants
📖
Documentation
https://platform.openai.com/docs/guides/text-to-speech
📖
Documentation
https://platform.openai.com/docs/api-reference/audio
📖
Documentation
https://platform.openai.com/docs/guides/speech-to-text
📖
Documentation
https://developers.openai.com/api/docs/guides/audio/
📖
Documentation
https://developers.openai.com/api/docs/guides/voice-agents/
📖
Documentation
https://platform.openai.com/docs/api-reference/chat
📖
Documentation
https://platform.openai.com/docs/guides/embeddings
📖
Documentation
https://platform.openai.com/docs/api-reference/embeddings
📖
Documentation
https://platform.openai.com/docs/api-reference/files
📖
Documentation
https://platform.openai.com/docs/guides/fine-tuning
📖
Documentation
https://platform.openai.com/docs/api-reference/fine-tuning
📖
Documentation
https://platform.openai.com/docs/guides/images
📖
Documentation
https://platform.openai.com/docs/api-reference/images
📖
Documentation
https://platform.openai.com/docs/guides/image-generation
📖
Documentation
https://platform.openai.com/docs/guides/images-vision
📖
Documentation
https://platform.openai.com/docs/models
📖
Documentation
https://platform.openai.com/docs/api-reference/models
📖
Documentation
https://platform.openai.com/docs/assistants/how-it-works/managing-threads-and-messages
📖
Documentation
https://platform.openai.com/docs/api-reference/threads
📖
Documentation
https://platform.openai.com/docs/api-reference/completions

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/openai/refs/heads/main/openapi/openai-skills-api-openapi.yml

SDKs

📦
GitHubRepository
https://github.com/openai/skills

Schemas & Data

📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/openai/refs/heads/main/json-schema/openai-chat-completion-schema.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/openai/refs/heads/main/json-schema/openai-embedding-schema.json

Other Resources

🔗
JSONLD
https://raw.githubusercontent.com/api-evangelist/openai/refs/heads/main/json-ld/openai-context.jsonld

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OpenAPI Specification

openai-skills-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: OpenAI Skills API
  description: The OpenAI REST API. Please see https://platform.openai.com/docs/api-reference for more details.
  version: 2.3.0
  termsOfService: https://openai.com/policies/terms-of-use
  contact:
    name: OpenAI Support
    url: https://help.openai.com/
  license:
    name: MIT
    url: https://github.com/openai/openai-openapi/blob/master/LICENSE
servers:
- url: https://api.openai.com/v1
security:
- ApiKeyAuth: []
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/openai/refs/heads/main/openapi/openai-skills-api-openapi.yml