# Structured Data for LLMs: JSON-LD That Agents Actually Use

> Schema.org JSON-LD is a low-cost way to label articles, FAQs, how-tos and entities for search engines and LLM retrieval. Evidence of use is real but modest,…

- **Canonical:** https://agentflare.org/research/structured-data-for-llms-json-ld-that-agents-actually-use.html
- **Updated:** 2026-10-16
- **Category:** research
- **Full structured data:** `/research/structured-data-for-llms-json-ld-that-agents-actually-use.data.json` — $0.02 via AISA HTTP 402 (https://esa.aisa.one/api/v1/access/verify; agents set crawlerAutoPrice=true)

## Key data

- **Cluster:** Discovery & crawling
- **Sources:** 8
- **Updated:** 2026-10-16

Schema.org JSON-LD is a low-cost way to label articles, FAQs, how-tos and entities for search engines and LLM retrieval. Evidence of use is real but modest, so deploy a small validated set by template and keep it matched to page content.

_…full analysis and the complete dataset are available to agents for $0.02 — fetch `/research/structured-data-for-llms-json-ld-that-agents-actually-use.data.json` (HTTP 402)._

## Sources

1. [Schema for AI: Schema.org & JSON-LD for LLM Citations (2026)](https://alicelabs.ai/en/insights/schema-org-for-ai)
2. [Schema & JSON-LD for LLM Search: Structured Data for LLMO / AEO / GEO | Szymon Słowik](https://www.szymonslowik.com/json-ld-for-llm-seo)
3. [Structured Data, Not Tokenization, is the Future of LLMs](https://www.schemaapp.com/schema-markup/why-structured-data-not-tokenization-is-the-future-of-llms)
4. [How Can Schema Markup Specifically Enhance LLM Visibility | Walker Sands](https://www.walkersands.com/about/blog/how-can-schema-markup-support-llm-visibility)
5. [LLM4Schema.org: Generating Schema.org Markups With Large Language Models - Minh-Hoang Dang, Thi Hoang Thi Pham, Pascal Molli, Hala Skaf-Molli, Alban Gaignard, 2025](https://journals.sagepub.com/doi/10.1177/22104968251382172)
6. [Structured Data for SEO and LLMs | Schema.org Markup Guide](https://seranking.com/blog/structured-data)
7. [Schema & Structured Data for LLM Visibility: What Actually Helps?](https://www.quoleady.com/schema-structured-data-for-llm-visibility)
8. [Structured data: SEO and GEO optimization for AI in 2026](https://www.digidop.com/blog/structured-data-secret-weapon-seo)

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- [Generative Engine Optimization (GEO): A Primer](https://agentflare.org/research/generative-engine-optimization-geo-a-primer.html)
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- [Pay-Per-Crawl and the New Bot Web](https://agentflare.org/research/pay-per-crawl-and-the-new-bot-web.html)
- [Crawler Policy on the Modern Web: robots.txt and Beyond](https://agentflare.org/research/crawler-policy-on-the-modern-web-robotstxt-and-beyond.html)
- [HTTP 402 & x402: How AI Agents Pay for Content](https://agentflare.org/research/http-402-x402-how-ai-agents-pay-for-content.html)
- [The AI Agent Economy in 2026](https://agentflare.org/research/the-ai-agent-economy-in-2026.html)

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