# Gillian Muessig (slim)

> Gillian Muessig is co-founder of Moz. Moz API on Anchor Terminal, with grades, an about and public profiles.

- Full: https://www.anchorterminal.com/people/gillian-muessig/index.md (~650 tokens) · this version ~430 tokens · JSON https://www.anchorterminal.com/people/gillian-muessig/index.json · canonical https://www.anchorterminal.com/people/gillian-muessig/
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-28
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Co-founder, Moz.

## What Gillian builds

- [Moz API](https://www.anchorterminal.com/tools/moz-api.md), graded E, 45.3/100, in SEO & search visibility. Moz API is a hosted JSON-RPC 2.0 service for SEO data from Moz's link and keyword indexes. It returns Domain Authority, backlinks, keyword metrics, ranking keywords and search results, with a beta MCP server for AI clients. Co-founder, Moz, researched 2026-10-27.

## Works with

- [Rand Fishkin](https://www.anchorterminal.com/people/rand-fishkin/), Co-founder, Moz

## Backed by

- [Foundry](https://www.anchorterminal.com/investors/foundry/)

## Questions

### Who is Gillian Muessig?

Gillian Muessig is co-founder of Moz.

### What does SEOmoz, Inc. (Moz) make?

Anchor Terminal lists Moz API from SEOmoz, Inc.

### Who has invested in SEOmoz, Inc. (Moz)?

The sources our research read name Foundry.

### How are Gillian's tools graded?

Moz API is graded E, 45.3 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

## Sources

- https://moz.com/about
- https://moz.com/api/docs
- https://moz.com/help/contact

These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched.