# Citable

> Pay-per-check SEO and AI-visibility data for AI agents. Every endpoint answers HTTP 402
> with its price; pay in USDC on Solana via x402 and retry. No API key, no subscription,
> nothing stored about you — the wallet is the account. Errors are never charged.

Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Cluster: mainnet · Protocol: x402 (scheme "exact")

## Start here

- [Agent skill file](https://citable.run/skill.md): endpoints, params, payment code — read this first
- [Machine-readable index](https://citable.run/api): prices and params as JSON, free to read
- [OpenAPI description](https://citable.run/openapi.json)
- [x402 discovery](https://citable.run/.well-known/x402)
- [Human docs](https://citable.run/docs)

## Endpoints

- [Keyword suggest](https://citable.run/docs/api/keyword-suggest) — `GET /v1/keyword-suggest` — $0.005 — The phrasings real people type: autocomplete expansions and questions for a seed — deduped and ranked, no search volume.
- [Keyword research](https://citable.run/docs/api/keyword-research) — `GET /v1/keyword-research` — $0.06 — One seed, the whole picture: keywords and questions from autocomplete and the paid index, with volume, CPC, difficulty and intent attached.
- [Keyword ideas](https://citable.run/docs/api/keyword-ideas) — `GET /v1/keyword-ideas` — $0.05 — Keyword research with the numbers attached: every result contains your seed, and arrives with search volume, CPC, difficulty and intent.
- [Keyword metrics](https://citable.run/docs/api/keyword-metrics) — `GET /v1/keyword-metrics` — $0.03 — Search volume, CPC, competition, difficulty and intent per keyword — one price for a batch of up to 20.
- [Rank check](https://citable.run/docs/api/rank-check) — `GET /v1/rank-check` — $0.012 — Google organic position of a domain for a keyword, plus the top-10 list — from a licensed SERP feed, never scraped.
- [On-page audit](https://citable.run/docs/api/onpage-audit) — `GET /v1/onpage-audit` — $0.01 — Classic on-page SEO plus AI citability, scored 0–100 with a fix for every non-passing check.
- [AI visibility](https://citable.run/docs/api/ai-visibility) — `GET /v1/ai-visibility` — $0.05/engine — Which AI answer engines cite a domain for a prompt — and who they cite instead. Official APIs, never UI scraping.
- [Top cited pages](https://citable.run/docs/api/top-cited-pages) — `GET /v1/top-cited-pages` — $0.22 — Which pages of a domain AI engines cite most, from an aggregated index of AI answers.
- [Cited prompts](https://citable.run/docs/api/cited-prompts) — `GET /v1/cited-prompts` — $0.25 — The real questions AI engines already cite a domain for — with the answer snippet and the exact URL cited.
- [AI mentions trend](https://citable.run/docs/api/ai-mentions-trend) — `GET /v1/ai-mentions-trend` — $0.18 — Monthly AI mentions and AI search volume for a domain, with month-over-month deltas — prompt tracking without a tracker.
- [AI share of voice](https://citable.run/docs/api/ai-share-of-voice) — `GET /v1/ai-share-of-voice` — $0.18 — Who AI cites most across 2–10 competing domains — one price for the whole set.
- [Citability report](https://citable.run/docs/api/citability-report) — `GET /v1/citability-report` — $0.30 — On-page audit + AI visibility across all engines + top cited pages, in one call. $0.30 instead of $0.43 separately.
- [Domain overview](https://citable.run/docs/api/domain-overview) — `GET /v1/domain-overview` — $0.03 — One domain's organic footprint — keywords ranked, top positions, estimated traffic and value.
- [Domain keywords](https://citable.run/docs/api/domain-keywords) — `GET /v1/domain-keywords` — $0.04 — The keywords a domain actually ranks for — volume, CPC, position and the ranking URL, loudest first.
- [Domain history](https://citable.run/docs/api/domain-history) — `GET /v1/domain-history` — $0.03 — A domain's organic footprint month by month — keywords, top-10 count, traffic — with the trend.
- [SERP](https://citable.run/docs/api/serp) — `GET /v1/serp` — $0.008 — The raw Google results page — organic results with snippets, People-Also-Ask and related searches.
- [Backlinks](https://citable.run/docs/api/backlinks) — `GET /v1/backlinks` — $0.10 — Link profile in one call: totals, domain rank, broken links, and the top referring domains.