# Elmo

> Updated 2026-09-25 · type: tool · category: seo-research · status: active · rev 1

Elmo is a self-hostable platform that tracks whether ChatGPT, Claude, Perplexity, Gemini, Copilot, Grok and Google AI Overviews cite or omit your brand.

- Open source: yes (MIT)
- Self-hostable: yes
- Pricing model: freemium
- Best for: A marketing or GTM team that wants to monitor how AI answer engines cite or omit its brand and would rather run that AEO/GEO tracker itself — an owned, self-hosted MIT core — than pay a hosted monitor, while knowing a paid Elmo Cloud exists if they prefer managed.
- Last verified: 2026-09-25

- **Canonical:** https://gtmstacker.com/registry/tool/elmo/
- **Source:** [elmohq · GitHub](https://github.com/elmohq/elmo)
- **Tags:** seo-research, analytics-bi, self-hostable, open-core, aeo, geo
- **Repository:** https://github.com/elmohq/elmo

## Is Elmo open source?

Yes, Elmo is open source under the MIT license.

## How much does Elmo cost?

Elmo has a free tier plus paid plans. The open-source version can be self-hosted with no license cost; you pay only for your own infrastructure.

## Can I self-host Elmo?

Yes, Elmo can be self-hosted (the source is available under the MIT license).

## Alternatives & related

- [CiteRank: a proprietary weekly tracker for whether AI answer engines cite or omit your site](https://gtmstacker.com/registry/news/citerank/)


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Elmo is an MIT-licensed, self-hostable platform that tracks how ChatGPT, Claude, Perplexity, Gemini, Copilot, Grok and Google AI Overviews cite or omit your brand — an AEO/GEO citation monitor positioned against Profound, Peec and Otterly. It is established, not a fresh drop: ~13 months old, 362 stars. It is open-core: the self-hostable MIT core is real and active, and a paid Elmo Cloud ($29/mo) and white-label exist alongside it.

## Provenance

- MIT (OSI-open), open-core; 362 stars, created 2025-08-29, last push 2026-09-25; an open-source, self-hostable platform that tracks how ChatGPT, Claude, Perplexity, Gemini, Copilot, Grok and Google AI Overviews cite (or omit) your brand — positioned as an alternative to Profound/Peec/Otterly; self-hostable (WebFetch 2026-09-25).
- Surfaced via the 2026-09-25 X viral-posts brief (cross-corroboration).
- Anti-hype note: established, not fresh (~13 months, 362 stars), and open-core — the self-hostable MIT core is real and active, and a paid Elmo Cloud ($29/mo) plus white-label exist alongside it. Both stated plainly.
- Curated from the GTM Stacker signal registry (2026-09-25 pass); license/facts independently verified 2026-09-25.

## Why it matters for a GTM stack

AEO/GEO — whether AI answer engines cite your brand — is becoming a monitored channel the way search rank once was, and most tools that watch it (Profound, Peec, Otterly) are paid, hosted monitors. Elmo's angle is to be that monitor as an owned, self-hosted stack: track how ChatGPT, Claude, Perplexity, Gemini, Copilot, Grok and Google AI Overviews cite or omit you, on infrastructure you run. For a GTM team that wants AEO/GEO visibility without renting it, that owned option is the draw, and at ~13 months and 362 stars this is a mature project, not a fresh drop — the most established tool in this batch. The honest read: it is open-core, so a paid Elmo Cloud ($29/mo) and white-label sit alongside the free self-hostable core — confirm which features are in the MIT core before you plan around it. Pair-contrast: CiteRank in this same batch is the paid, zero-setup counterpart if you would rather not self-host.