--- title: 5 Examples of API-First AI Agents | daily.dev description: API-first AI architecture treats the API as the primary interface for building and operating intelligent systems, not just a secondary integration layer. Five... canonical: https://daily.dev/posts/5-examples-of-api-first-ai-agents-bxalhjeke twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: 5 Examples of API-First AI Agents | daily.dev og:description: API-first AI architecture treats the API as the primary interface for building and operating intelligent systems, not just a secondary integration layer. Five... og:url: https://daily.dev/posts/5-examples-of-api-first-ai-agents-bxalhjeke og:image: https://api.daily.dev/og/posts/bXalHjekE.png og:image:alt: 5 Examples of API-First AI Agents og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # 5 Examples of API-First AI Agents **[Nordic APIs](https://daily.dev/sources/nordicapis)** · 8 min read · 1 upvotes · 0 comments ## Summary API-first AI architecture treats the API as the primary interface for building and operating intelligent systems, not just a secondary integration layer. Five real-world examples illustrate the approach: PTV Logistics built PTV Mira for real-time logistics simulations; Plain exposes all customer support functions via GraphQL and REST for fully customizable AI agents; Perfect Corp. offers modular AI beauty APIs for skin analysis and virtual try-on; Intercom provides chat-first AI with limited deep extensibility; and Zendesk offers enterprise-grade API-enabled AI automation within established support workflows. Key benefits include composable architectures, real-time action execution, and scalability, though organizations must weigh token costs, rate limits, and pricing tiers. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Why It’s Good to Be API-First in the AI Era](https://daily.dev/posts/why-it-s-good-to-be-api-first-in-the-ai-era-pigevji95) · Nordic APIs · 79 upvotes · 3 comments - [It’s Time To Build APIs for AI, Not Just For Developers](https://daily.dev/posts/it-s-time-to-build-apis-for-ai-not-just-for-developers-ee2zjn4mi) · The New Stack · 2 upvotes · 0 comments - [How to Design APIs for AI Agents](https://daily.dev/posts/how-to-design-apis-for-ai-agents-qead0gcs9) · freeCodeCamp · 7 upvotes · 0 comments - [A Software Architect’s Guide to API-First Strategy](https://daily.dev/posts/a-software-architect-s-guide-to-api-first-strategy-rjb6qbgkq) · Nordic APIs · 175 upvotes · 2 comments - [API-First or AI-First? The New Strategic Dilemma](https://daily.dev/posts/api-first-or-ai-first-the-new-strategic-dilemma-ojkndxqka) · Faun · 12 upvotes · 0 comments --- Tags: [#architecture](https://daily.dev/tags/architecture), [#llm](https://daily.dev/tags/llm), [#ai-agents](https://daily.dev/tags/ai-agents) [View this post on daily.dev](https://daily.dev/posts/5-examples-of-api-first-ai-agents-bxalhjeke) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"5 Examples of API-First AI Agents","url":"https://daily.dev/posts/5-examples-of-api-first-ai-agents-bxalhjeke","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/5-examples-of-api-first-ai-agents-bxalhjeke"},"datePublished":"2026-03-24T08:00:46.652Z","dateModified":"2026-03-24T08:01:12.468Z","description":"API-first AI architecture treats the API as the primary interface for building and operating intelligent systems, not just a secondary integration layer. 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