# Best AI rank tracking tools with an API

> Source: https://citedindex.com/best/rank-tracking/api (curated, re-verified)

15 of our 21 ai rank tracking tools are listed with an API.

Paid plans run from $3 to $97, and 5 have a free or freemium plan.

Last checked 2026-10-14.

Every tool here technically "has an API" per this tag, but when you can actually USE it varies enormously: RankLens ships a documented API for free, forever, no card required; Mangools AI Search Watcher bundles API access into the cheapest standalone entry price in this category ($15.60/month); Morningscore includes its full API on every paid tier from $69/month; and LLMrefs' $0, 7-day trial includes full API access before you pay anything. By contrast, Otterly AI, RankScale and Nightwatch all gate API access to a mid-or-higher tier ($189, $385 and €159/month (about $178) respectively), with no API at all on their cheapest entry plans.

## All picks at a glance

| # | Name | Best for | Starts at |
| --- | --- | --- | --- |
| 1 | [Emergine](https://citedindex.com/emergine.md) | B2B brands and PR/marketing agencies running both Chinese and Western AI visibility programs from one workspace. | From $29/month |
| 2 | [AEOlens](https://citedindex.com/aeolens.md) | Founders, growth marketers and SEO agencies that want to monitor AI citation readiness on their own domains or run AI visibility audits on client sites under their own brand. | Free, then $59/month |
| 3 | [Distribb](https://citedindex.com/distribb.md) | SaaS founders, agencies, and developer-led growth teams who don't want to run SEO, content writing, link outreach, and AI-visibility tracking as four separate vendor relationships. | From $97/month |
| 4 | [Keyword.com AI Visibility](https://citedindex.com/keyword-com-ai-visibility.md) | Agencies tracking Google rankings and AI-engine brand mentions (ChatGPT, Perplexity, Gemini, Claude) in one dashboard with API and MCP access | From $9.80/month |
| 5 | [TrueRanker](https://citedindex.com/trueranker.md) | SEO teams that want a cheap, established rank tracker with AI-visibility bundled in. | From $14.99/month |
| 6 | [AI Sightline](https://citedindex.com/ai-sightline.md) | A team that wants a free, low-friction first look at AI answer visibility, and that specifically needs server-side AI referral traffic attribution rather than just mention tracking. | Free, then $29.95/month |
| 7 | [SEORCE](https://citedindex.com/seorce.md) | — | Free, then $49/month |
| 8 | [LLMrefs](https://citedindex.com/llmrefs.md) | — | From €79/month (about $89) |
| 9 | [Local Falcon](https://citedindex.com/local-falcon.md) | multi-location or franchise businesses | From $24.99/month |
| 10 | [AI Search Watcher](https://citedindex.com/mangools-ai-search-watcher.md) | teams already using or considering Mangools' KWFinder/SERPWatcher suite | Free, then €24/month (about $27) |
| 11 | [RankLens](https://citedindex.com/ranklens.md) | brands and agencies that want free, broad-engine AI-visibility tracking and are comfortable relying on a not-yet-independently-reviewed product | Free |
| 12 | [Morningscore](https://citedindex.com/morningscore.md) | Small agencies and small-to-midsize marketing teams | From $69/month |
| 13 | [Nightwatch](https://citedindex.com/nightwatch.md) | SEO agencies and in-house teams that want classic rank tracking and six-engine AI visibility in one dashboard, with citation-level attribution for AI answers. | From €99/month (about $111) |
| 14 | [OtterlyAI](https://citedindex.com/otterly-ai.md) | Marketing, SEO and content teams taking their first serious measurement of AI-search visibility, who want a self-serve start rather than a sales call. | From $29/month |
| 15 | [Rankscale](https://citedindex.com/rankscale.md) | Enterprise marketing teams and agencies that need broad AI-engine coverage plus MCP access | From $20/month |

Checked between Sep 15, 2026 and Oct 14, 2026. “About” figures are converted at the European Central Bank rate of Oct 15, 2026.