# Services from citable.run on Zero

> citable.run serves 9 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/citable.run
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/citable.run/health.json

## Services

- [citable.run Keyword Research](https://www.zero.xyz/c/citable-run-keyword-research-87aaa5a1/llms.txt): $0.06/call via x402. Returns keywords, related questions, and search volume metrics for a given seed keyword in a single API call.
- [citable.run On-Page SEO Audit](https://www.zero.xyz/c/citable-run-on-page-seo-audit-b0efd9d3/llms.txt): $0.01/call via x402. Performs a comprehensive on-page SEO audit of a single URL, scoring title, meta tags, headings, links, images, structured data, and word count.
- [citable.run Domain Keywords Ranking](https://www.zero.xyz/c/citable-run-domain-keywords-ranking-35e42ad0/llms.txt): $0.04/call via x402. Returns the keywords a domain ranks for in organic search, including search volume, CPC, position, ranking URL, and month-over-month position movement.
- [citable.run AI Visibility Check](https://www.zero.xyz/c/citable-run-ai-visibility-check-a090c44a/llms.txt): $0.2/call via x402. Checks which AI answer engines (Perplexity, Gemini, OpenAI, Anthropic) cite a given domain in response to a specific prompt, using their official APIs.
- [citable.run AI Share of Voice](https://www.zero.xyz/c/citable-run-ai-share-of-voice-16a7d4e2/llms.txt): $0.18/call via x402. Returns the share of AI citations across 2–10 competing domains, showing which domains are cited most by AI answer engines.
- [citable.run Domain Overview](https://www.zero.xyz/c/citable-run-domain-overview-e4245cbd/llms.txt): $0.03/call via x402. Returns a domain's organic SEO footprint: total keywords ranked, top positions, and estimated organic traffic.
- [citable.run SERP](https://www.zero.xyz/c/citable-run-serp-414b57bc/llms.txt): $0.008/call via x402. Returns raw Google search results including organic listings, People Also Ask boxes, and related searches for a given keyword.
- [citable.run Rank Check](https://www.zero.xyz/c/citable-run-rank-check-87a41497/llms.txt): $0.012/call via x402. Returns the Google organic search position of a specific domain for a given keyword, using a licensed SERP data feed.
- [Citable.run Cited Prompts Lookup](https://www.zero.xyz/c/citable-run-cited-prompts-lookup-77cec5dd/llms.txt): $0.25/call via x402. Returns the AI prompts a given domain is already cited for, along with the answer snippet and cited URL, across ChatGPT and/or Google AI.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)