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  • Open service 64.239.109.1:80 · www.openresponses.org

    2026-01-12 18:02 

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  • Open service 64.239.123.1:443 · www.openresponses.org

    2026-01-12 18:02 

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Page title: Overview

<!DOCTYPE html><html lang="en"> <head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><title>Overview</title><meta name="description" content="OpenResponses documentation overview."><link rel="preconnect" href="https://fonts.googleapis.com"><link rel="preconnect" href="https://fonts.gstatic.com" crossorigin><link href="https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap" rel="stylesheet"><link rel="stylesheet" href="/_astro/index.BCmUSTcn.css"><script type="module" src="/_astro/page.eHnhIOW6.js"></script></head> <body class="bg-orange-50 text-slate-900"> <div class="min-h-screen"> <header class="site-header"> <div class="mx-auto flex h-16 max-w-6xl items-center justify-between px-4 sm:px-6"> <div class="flex items-center gap-3"> <a href="/"> <div class="instrument-serif text-2xl font-semibold text-slate-900"> <span class="text-amber-500 italic">Open</span>&nbsp;Responses
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  </script> </header> <main class="mx-auto grid max-w-6xl gap-10 px-4 py-10 sm:px-6 lg:grid-cols-[200px_1fr_220px]"> <aside class="hidden lg:block"> <div class="sticky top-24 space-y-2 text-sm text-slate-600"> <nav class="space-y-1"> <a class="block rounded-lg px-3 py-1.5 transition hover:text-amber-500 bg-slate-100 font-medium text-slate-900 shadow-inner" href="/" aria-current="page"> Overview </a><a class="block rounded-lg px-3 py-1.5 transition hover:text-amber-500" href="/specification"> Specification </a><a class="block rounded-lg px-3 py-1.5 transition hover:text-amber-500" href="/reference"> Reference </a> </nav> </div> </aside> <section class="min-w-0" data-toc-content> <div class="lg:hidden"> <nav class="mb-6 flex gap-2 overflow-x-auto pb-2 text-sm"> <a class="rounded-full border border-slate-200 px-3 py-1 whitespace-nowrap text-slate-600" href="/"> Overview </a><a class="rounded-full border border-slate-200 px-3 py-1 whitespace-nowrap text-slate-600" href="/specification"> Specification </a><a class="rounded-full border border-slate-200 px-3 py-1 whitespace-nowrap text-slate-600" href="/reference"> Reference </a> </nav> </div> <div class="mb-12"> <h1 class="landing-title"><span class="text-amber-500 italic">Open</span><br> <span class="text-slate-700">Responses</span></h1> </div> <article class="prose prose-slate max-w-none"> <p>Open Responses is an open-source specification and ecosystem for building multi-provider, interoperable LLM interfaces based on the OpenAI Responses API. It defines a shared schema, and tooling layer that enable a unified experience for calling language models, streaming results, and composing agentic workflows—independent of provider.</p>
<h2 id="why-open-responses">Why Open Responses</h2>
<p>LLM APIs have largely converged on similar building blocks—messages, tool calls, streaming, and multimodal inputs—but each provider encodes them differently. <strong>Open Responses</strong> gives builders a <strong>shared, open specification</strong> (plus reference tooling) so you can describe requests and outputs once, and run them across providers with minimal translation work.</p>
<p>It’s designed to be:</p>
<ul>
<li><strong>Multi-provider by default</str
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  • Open service 64.239.109.1:443 · www.openresponses.org

    2026-01-12 18:02 

    HTTP/1.1 200 OK
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Page title: Overview

<!DOCTYPE html><html lang="en"> <head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><title>Overview</title><meta name="description" content="OpenResponses documentation overview."><link rel="preconnect" href="https://fonts.googleapis.com"><link rel="preconnect" href="https://fonts.gstatic.com" crossorigin><link href="https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap" rel="stylesheet"><link rel="stylesheet" href="/_astro/index.BCmUSTcn.css"><script type="module" src="/_astro/page.eHnhIOW6.js"></script></head> <body class="bg-orange-50 text-slate-900"> <div class="min-h-screen"> <header class="site-header"> <div class="mx-auto flex h-16 max-w-6xl items-center justify-between px-4 sm:px-6"> <div class="flex items-center gap-3"> <a href="/"> <div class="instrument-serif text-2xl font-semibold text-slate-900"> <span class="text-amber-500 italic">Open</span>&nbsp;Responses
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  </script> </header> <main class="mx-auto grid max-w-6xl gap-10 px-4 py-10 sm:px-6 lg:grid-cols-[200px_1fr_220px]"> <aside class="hidden lg:block"> <div class="sticky top-24 space-y-2 text-sm text-slate-600"> <nav class="space-y-1"> <a class="block rounded-lg px-3 py-1.5 transition hover:text-amber-500 bg-slate-100 font-medium text-slate-900 shadow-inner" href="/" aria-current="page"> Overview </a><a class="block rounded-lg px-3 py-1.5 transition hover:text-amber-500" href="/specification"> Specification </a><a class="block rounded-lg px-3 py-1.5 transition hover:text-amber-500" href="/reference"> Reference </a> </nav> </div> </aside> <section class="min-w-0" data-toc-content> <div class="lg:hidden"> <nav class="mb-6 flex gap-2 overflow-x-auto pb-2 text-sm"> <a class="rounded-full border border-slate-200 px-3 py-1 whitespace-nowrap text-slate-600" href="/"> Overview </a><a class="rounded-full border border-slate-200 px-3 py-1 whitespace-nowrap text-slate-600" href="/specification"> Specification </a><a class="rounded-full border border-slate-200 px-3 py-1 whitespace-nowrap text-slate-600" href="/reference"> Reference </a> </nav> </div> <div class="mb-12"> <h1 class="landing-title"><span class="text-amber-500 italic">Open</span><br> <span class="text-slate-700">Responses</span></h1> </div> <article class="prose prose-slate max-w-none"> <p>Open Responses is an open-source specification and ecosystem for building multi-provider, interoperable LLM interfaces based on the OpenAI Responses API. It defines a shared schema, and tooling layer that enable a unified experience for calling language models, streaming results, and composing agentic workflows—independent of provider.</p>
<h2 id="why-open-responses">Why Open Responses</h2>
<p>LLM APIs have largely converged on similar building blocks—messages, tool calls, streaming, and multimodal inputs—but each provider encodes them differently. <strong>Open Responses</strong> gives builders a <strong>shared, open specification</strong> (plus reference tooling) so you can describe requests and outputs once, and run them across providers with minimal translation work.</p>
<p>It’s designed to be:</p>
<ul>
<li><strong>Multi-provider by default</str
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  • Open service 64.239.123.1:80 · www.openresponses.org

    2026-01-12 18:02 

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  • Open service 64.239.109.1:80 · openresponses.org

    2026-01-12 18:02 

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  • Open service 64.239.109.1:443 · openresponses.org

    2026-01-12 18:02 

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www.openresponses.org
Fingerprint:
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www.openresponses.org
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Not before:
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Domain summary

www.openresponses.org 3 openresponses.org 1

2 recorded
IP summary

64.239.109.1 3 64.239.123.1 1

2 recorded

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