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OpenAI Responses API

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The Responses API is OpenAI's unified interface for agent-like applications with built-in tools, multimodal inputs, stateful context, function calling, and streaming.

Tool Snapshot

OpenAI's recommended API primitive for stateful, multimodal, tool-using, agentic model interactions.

Pricing

Paid

Primary category

AI Tool

Publisher

OpenAI

Verification

Verified listing

What To Know About OpenAI Responses API

Key features

  • Agentic API
  • Built-in tools
  • Stateful context
  • Multimodal input
  • Streaming

Best for

  • AI agents
  • Search assistants
  • Document workflows
  • Automation

Published by OpenAI

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OpenAI Responses API FAQ

What is OpenAI Responses API used for?

OpenAI Responses API is commonly used for AI agents, Search assistants, Document workflows.

Is OpenAI Responses API free?

OpenAI Responses API uses paid pricing.

How do I compare OpenAI Responses API with alternatives?

Review pricing, feature coverage, ratings, and similar tools on this page before visiting the product site.