# OpenAI Responses API

**Canonical:** https://apis.io/apis/chatgpt/openai-responses-api/  
**Provider:** ChatGPT — https://apis.io/providers/chatgpt/  
**Base URL:** https://api.openai.com/v1  
**Documentation:** https://platform.openai.com/docs/api-reference/responses

OpenAI Responses API is one of 2 APIs that [ChatGPT](https://apis.io/providers/chatgpt/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 1 JSON Schema definition. Tagged areas include Agents, Artificial Intelligence, Conversational AI, Responses, and Tools. The published artifact set on APIs.io includes API documentation, an OpenAPI specification, a JSON-LD context, and 1 JSON Schema.

The Responses API is OpenAI's recommended API primitive for new projects, an evolution of Chat Completions with built-in tools like web search, file search, code interpreter, and support for agentic workflows.

## Machine-readable artifacts (5)

- **Documentation** — https://platform.openai.com/docs/api-reference/responses
- **OpenAPI** — https://github.com/openai/openai-openapi/blob/master/openapi.yaml
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/chatgpt/refs/heads/main/openapi/chatgpt-responses-api-openapi.yml
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/chatgpt/refs/heads/main/json-schema/chatgpt-response-schema.json
- **JSONLD** — https://raw.githubusercontent.com/api-evangelist/chatgpt/refs/heads/main/json-ld/chatgpt-responses-context.jsonld

## Other ChatGPT APIs (1)

- [ChatGPT API](https://apis.io/apis/chatgpt/chatgpt-api/)

## Tags

Agents, Artificial Intelligence, Conversational AI, Responses, Tools

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/chatgpt/openai-responses-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/chatgpt/.