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OpenAI

APIs for accessing OpenAI's artificial intelligence models including GPT, DALL-E, Whisper, and Embeddings.

agent ready

Reference-quality API operations across every facet — a rich contract, published governance, transparent operations, and machine-readable commercial terms.

Kin Score

API Evangelist profiles OpenAI the way a machine reads it — 228 machine-readable artifacts across 51 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — OpenAI scores 72.2/100 (exemplar), with a separate agent-readiness read of 59/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 72.2/100 · exemplar
Contract Quality 19.6 / 25
Developer Ergonomics 11.3 / 20
Commercial Clarity 18.4 / 20
Operational Transparency 8.2 / 13
Governance 7.9 / 12
Discoverability 6.8 / 10
Agent readiness — 59/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile OpenAI

Each block below is one kind of artifact we hold for OpenAI. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 51

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

OpenAI Responses API

The Responses API is OpenAI's most advanced interface for generating model responses. It combines the strengths of the Chat Completions and Assistants APIs into a single streaml...

OpenAI Moderations API

The Moderations API can be used to check whether text or images are potentially harmful. It classifies content across several categories including harassment, hate speech, sexua...

OpenAI Batch API

The Batch API enables asynchronous processing of requests with 50% cost discount, higher rate limits, and completion within 24 hours. It supports /v1/responses, /v1/chat/complet...

OpenAI Vector Stores API

Vector stores are collections of processed files that power semantic search for the file_search tool in the Responses and Assistants APIs. When you add a file to a vector store ...

OpenAI Uploads API

The Uploads API creates an intermediate Upload object that you can add Parts to, enabling large file uploads. Currently an Upload can accept at most 8 GB in total and expires af...

OpenAI Realtime API

The Realtime API enables low-latency, bidirectional communication with models that natively support speech-to-speech interactions as well as multimodal inputs (audio, images, an...

OpenAI Evals API

The Evals API allows you to programmatically configure and run evaluations to test model outputs against your expectations. Evaluations ensure model responses meet style and con...

OpenAI Videos API

The Videos API enables programmatic creation, extension, and remixing of videos using Sora models. It provides endpoints for creating a new render job from a text prompt, checki...

OpenAI Conversations API

The Conversations API allows you to create and manage stateful conversations for use with the Responses API. A conversation object contains an id, a created_at timestamp, and me...

OpenAI Containers API

The Containers API manages sandboxed containers used by Code Interpreter for running Python, data work, file transforms, and iterative debugging. Containers can be created expli...

OpenAI ChatKit API

ChatKit is the best way to build agentic chat experiences. It provides session and thread management for building internal knowledge base assistants, research companions, suppor...

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. Opera...

OpenAI Agents SDK

The OpenAI Agents SDK is a lightweight framework for building multi-agent workflows in Python and TypeScript. Primitives include agents (LLMs with instructions, tools, guardrail...

OpenAI Codex

OpenAI Codex is a lightweight coding agent that runs in the terminal, with companion IDE extensions, a desktop app, and a web experience at chatgpt.com/codex. Codex authenticate...

OpenAI Assistants API

Build Assistants that can call models and use tools.

OpenAI Audio API

Learn how to turn audio into text or text into audio.

OpenAI Audit Logs API

List user actions and configuration changes within this organization.

OpenAI Batch API

Create large batches of API requests to run asynchronously.

OpenAI Certificates API

The Certificates API from OpenAI — 7 operation(s) for certificates.

OpenAI Chat API

Given a list of messages comprising a conversation, the model will return a response.

OpenAI Chatkit API

The Chatkit API from OpenAI — 5 operation(s) for chatkit.

OpenAI Completions API

Given a prompt, the model will return one or more predicted completions, and can also return the probabilities of alternative tokens at each position.

OpenAI Containers API

The Containers API from OpenAI — 5 operation(s) for containers.

OpenAI Conversations API

Manage conversations and conversation items.

OpenAI Embeddings API

Get a vector representation of a given input that can be easily consumed by machine learning models and algorithms.

OpenAI Evals API

Manage and run evals in the OpenAI platform.

OpenAI Files API

Files are used to upload documents that can be used with features like Assistants and Fine-tuning.

OpenAI Fine Tuning API

The Fine Tuning API from OpenAI — 11 operation(s) for fine tuning.

OpenAI Group organization role assignments API

The Group organization role assignments API from OpenAI — 2 operation(s) for group organization role assignments.

OpenAI Group users API

The Group users API from OpenAI — 2 operation(s) for group users.

OpenAI Groups API

The Groups API from OpenAI — 2 operation(s) for groups.

OpenAI Images API

Given a prompt and/or an input image, the model will generate a new image.

OpenAI Invites API

The Invites API from OpenAI — 2 operation(s) for invites.

OpenAI Models API

List and describe the various models available in the API.

OpenAI Moderations API

Given text and/or image inputs, classifies if those inputs are potentially harmful.

OpenAI Organization API

The Organization API from OpenAI — 2 operation(s) for organization.

OpenAI Project group role assignments API

The Project group role assignments API from OpenAI — 2 operation(s) for project group role assignments.

OpenAI Project groups API

The Project groups API from OpenAI — 2 operation(s) for project groups.

OpenAI Project user role assignments API

The Project user role assignments API from OpenAI — 2 operation(s) for project user role assignments.

OpenAI Projects API

The Projects API from OpenAI — 11 operation(s) for projects.

OpenAI Realtime API

The Realtime API from OpenAI — 9 operation(s) for realtime.

OpenAI Responses API

The Responses API from OpenAI — 6 operation(s) for responses.

OpenAI Roles API

The Roles API from OpenAI — 4 operation(s) for roles.

OpenAI Skills API

The Skills API from OpenAI — 6 operation(s) for skills.

OpenAI Threads API

The Threads API from OpenAI — 13 operation(s) for threads.

OpenAI Uploads API

Use Uploads to upload large files in multiple parts.

OpenAI Usage API

The Usage API from OpenAI — 9 operation(s) for usage.

OpenAI User organization role assignments API

The User organization role assignments API from OpenAI — 2 operation(s) for user organization role assignments.

OpenAI Users API

The Users API from OpenAI — 2 operation(s) for users.

OpenAI Vector stores API

The Vector stores API from OpenAI — 10 operation(s) for vector stores.

OpenAI Videos API

The Videos API from OpenAI — 8 operation(s) for videos.

Scroll within the panel for all 51 ·

Postman Collections 14

A runnable collection turns the contract into something a developer can execute in seconds. We profile them because the fastest way to trust an API is to make a real call against it.

Ready-to-run Postman collections for exercising this provider's APIs.

Scroll within the panel for all 14 ·

Open Collections 6

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

OpenAI Audio API

OPEN COLLECTION

OpenAI Embeddings API

OPEN COLLECTION

API Collection

OPEN COLLECTION

OpenAI Images API

OPEN COLLECTION

OpenAI API

OPEN COLLECTION

Arazzo Workflows 17

Real integrations are rarely a single call. Arazzo describes the multi-step sequences — auth, then create, then confirm — so both a human and an agent can follow the choreography, not just the endpoints.

Multi-step API workflows described with the Arazzo specification.

OpenAI Assistant Run

Create an assistant, open a thread, add a message, run it, poll the run, and read the reply.

ARAZZO

OpenAI Batch Job

Upload a batch input file, create a batch, poll until complete, and read the output file id.

ARAZZO

OpenAI Cancel Fine-Tuning Job

Inspect a running fine-tuning job and cancel it only if it is still in progress.

ARAZZO

OpenAI Chat then Speak

Generate a chat reply, then synthesize it to spoken audio.

ARAZZO

OpenAI Create Embedding

Confirm an embedding model exists, then embed input text.

ARAZZO

OpenAI Download Batch Results

Retrieve a completed batch and download its output file contents.

ARAZZO

OpenAI Fine-Tuning Job

Upload a training file, start a fine-tuning job, poll until terminal, and read the result.

ARAZZO

OpenAI Moderate then Generate Image

Screen an image prompt, then generate an image only when it is allowed.

ARAZZO

OpenAI List Models then Create Chat Completion

Discover an available model, then generate a chat completion with it.

ARAZZO

OpenAI Moderate then Chat

Screen user input with the moderation endpoint, then chat only if it is safe.

ARAZZO

OpenAI Retrieve and Delete Fine-Tuned Model

Inspect a model and delete it only when it is an owned fine-tuned model.

ARAZZO

OpenAI Create Thread and Run

Start a thread and run in one request against an existing assistant, then poll and read the reply.

ARAZZO

OpenAI Transcribe then Summarize

Transcribe an audio file, then summarize the transcript with a chat completion.

ARAZZO

OpenAI Upload and Verify File

Upload a file, confirm it appears in the file list, and retrieve its metadata.

ARAZZO

OpenAI Vector Store File Batch

Create a vector store, attach a batch of files, and poll the batch to completion.

ARAZZO

OpenAI Vector Store Ingest File

Create a vector store, upload a file, attach it, and poll until it is indexed.

ARAZZO

OpenAI Vector Store Search

Attach a file to a vector store, wait until it is indexed, then run a semantic search.

ARAZZO

Scroll within the panel for all 17 ·

Agent Skills 24

An agent skill packages the how-to for driving these APIs from an assistant — the prompts, the sequence, the guardrails — so the knowledge to use the API travels with it.

Packaged agent skills for driving this provider's APIs from an AI assistant.

aspnet-core

AGENT SKILL

chatgpt-apps

AGENT SKILL

cli-creator

AGENT SKILL

cloudflare-deploy

AGENT SKILL

define-goal

AGENT SKILL

figma-use

AGENT SKILL

figma

AGENT SKILL

gh-address-comments

AGENT SKILL

gh-fix-ci

AGENT SKILL

hatch-pet

AGENT SKILL

imagegen

AGENT SKILL

jupyter-notebook

AGENT SKILL

linear

AGENT SKILL

migrate-to-codex

AGENT SKILL

netlify-deploy

AGENT SKILL

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GraphQL 1

Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.

GraphQL schemas published by this provider.

OpenAI GraphQL

OpenAI does not offer a native public GraphQL endpoint. All official API access is provided through the OpenAI REST API at `https://api.openai.com/v1`. This schema is a comprehe...

GRAPHQL

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Openai Plans Pricing

6 plans

PLANS

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Openai Rate Limits

0 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Features 16

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

GPT-5.5 flagship model at $5/$30 per MTok input/output
GPT-5.5 Pro for highest reasoning at $30/$180 per MTok
GPT-5.4 mid-tier balanced model at $2.50/$15 per MTok
GPT-5.4 Mini at $0.75/$4.50 per MTok
GPT-5.4 Nano cheapest model at $0.20/$1.25 per MTok
GPT Realtime 1.5 for low-latency voice with separate audio pricing
Cached input at ~10x discount vs uncached
Batch API at 50% discount on input and output
Flex tier for reduced cost / lower priority workloads
Vision, tool use, structured outputs, and function calling
Six usage tiers (Free + Tier 1-5) with automatic spend-based advancement
Five rate limit metrics: RPM, RPD, TPM, TPD, IPM
Per-model rate ceilings; X-RateLimit-* headers on every response
Project-level API keys for cost allocation
Cost Tracking API and per-project hard spend limits
Regional data residency with 10% uplift

Scroll within the panel for all 16 ·

Event Specifications 1

Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.

AsyncAPI definitions for this provider's event-driven and streaming APIs.

OpenAI Realtime API

The OpenAI Realtime API provides low-latency, bidirectional, event-driven communication with multimodal models that natively support speech-to-speech, text, and audio in a singl...

ASYNCAPI

Semantic Vocabularies 5

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Openai Audio Context

0 classes · 0 properties

JSON-LD

Openai Chat Completions Context

0 classes · 0 properties

JSON-LD

Openai Context

0 classes · 15 properties

JSON-LD

Openai Embeddings Context

0 classes · 0 properties

JSON-LD

Openai Images Context

0 classes · 0 properties

JSON-LD

Spectral Rules 3

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

OpenAI API Rules

9 rules · 1 errors · 8 warnings

SPECTRAL

OpenAI API Rules

6 rules · 5 warnings

SPECTRAL

OpenAI API Rules

16 rules · 8 errors · 8 warnings

SPECTRAL

JSON Schema 24

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

CreateSpeechRequest

6 properties

JSON SCHEMA

CreateTranscriptionRequest

7 properties

JSON SCHEMA

CreateTranslationRequest

5 properties

JSON SCHEMA

TranscriptionResponse

6 properties

JSON SCHEMA

TranslationResponse

5 properties

JSON SCHEMA

OpenAI Chat Completion

8 properties

JSON SCHEMA

ChatCompletionChoice

4 properties

JSON SCHEMA

ChatCompletionMessage

5 properties

JSON SCHEMA

ChatCompletionTool

2 properties

JSON SCHEMA

CompletionUsage

5 properties

JSON SCHEMA

ContentPart

3 properties

JSON SCHEMA

CreateChatCompletionRequest

21 properties

JSON SCHEMA

CreateChatCompletionResponse

7 properties

JSON SCHEMA

ToolCall

3 properties

JSON SCHEMA

OpenAI Embedding Response

4 properties

JSON SCHEMA

CreateEmbeddingRequest

5 properties

JSON SCHEMA

CreateEmbeddingResponse

3 properties

JSON SCHEMA

Embedding

3 properties

JSON SCHEMA

EmbeddingUsage

2 properties

JSON SCHEMA

CreateImageEditRequest

8 properties

JSON SCHEMA

CreateImageRequest

8 properties

JSON SCHEMA

CreateImageVariationRequest

6 properties

JSON SCHEMA

Image

3 properties

JSON SCHEMA

ImagesResponse

2 properties

JSON SCHEMA

Scroll within the panel for all 24 ·

JSON Structure 22

JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.

JSON Structure definitions describing this provider's data shapes.

Openai Embeddings Embedding Structure

3 properties

JSON STRUCTURE

Openai Images Image Structure

3 properties

JSON STRUCTURE

Openai Images Images Response Structure

2 properties

JSON STRUCTURE

Scroll within the panel for all 22 ·

Examples 22

Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.

Example request and response payloads for these APIs.

Scroll within the panel for all 22 ·

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Openai Authentication

http · 1 scheme

SECURITY

Openai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Openai Vulnerability Disclosure

Bugcrowd · security.txt · contact published

SECURITY

Openai Trust Center

SOC 2, ISO 27001, ISO 27017, ISO 27018, PCI DSS, FedRAMP, GDPR, CSA STAR

SECURITY

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Openai Agentic Access

307 operations · 183 acting · 6 human-in-the-loop

307 operations · 183 acting

AGENTIC

Use Cases 8

What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.

What developers build with this provider.

Conversational AI

Build chatbots, virtual assistants, and customer support agents using Chat Completions or Responses API.

Content Generation

Generate marketing copy, articles, product descriptions, and creative writing with controllable tone and style.

Code Generation

Automate code writing, debugging, refactoring, and documentation generation across programming languages.

Document Analysis

Extract, summarize, and answer questions from uploaded documents using Assistants with file search.

Voice Agents

Build real-time voice-based AI agents for customer service, sales, and interactive experiences.

Semantic Search

Implement intelligent search using embeddings and vector stores for knowledge bases and document retrieval.

Content Moderation

Automatically classify and filter harmful content across text and images using the Moderations API.

Data Extraction

Extract structured data from unstructured text using function calling and structured outputs.

Scroll within the panel for all 8 ·

Integrations 6

Pre-built integrations with other platforms tell you where this provider already fits in a stack.

Pre-built integrations with other platforms and tools.

Python SDK

Official Python client library for accessing all OpenAI API endpoints with async support and streaming.

Node.js SDK

Official TypeScript and JavaScript client library for server-side and edge runtime OpenAI API integration.

Microsoft Azure OpenAI

Run OpenAI models on Azure infrastructure with enterprise security, compliance, and regional data residency.

LangChain

Framework integration for building LLM-powered applications with chains, agents, and retrieval-augmented generation.

Vercel AI SDK

Integration with Vercel AI SDK for building streaming AI-powered web applications with React and Next.js.

Zapier

No-code automation integration connecting OpenAI to thousands of apps for automated AI-powered workflows.

Resources

Every other property we hold for OpenAI — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

Learn 1

Tutorials, courses, talks, and written guidance

Company 2

The organization behind the API

Other 3

Properties that don't map to a standard resource type

← All providers · Data indexed from github.com/api-evangelist/openai · machine-readable index on apis.io