# Zayd Simjee

> Zayd Simjee is co-founder; joined Harvey product and engineering. Guardrails AI on Anchor Terminal, with grades, an about and public profiles.

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- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-28

Co-founder; joined Harvey product and engineering.

Zayd Simjee co-founded Guardrails AI with Shreya Rajpal. The company built an open-source framework and the Guardrails Hub of validators for testing and controlling the behaviour of AI applications and agents. After Harvey acquired Guardrails in September 2026, he joined Harvey's product and engineering organisation.

- X: https://x.com/zaydsimjee

## What Zayd builds

- [Guardrails AI](https://www.anchorterminal.com/tools/guardrails-ai.md), graded D, 50/100, in Guardrails & safety filters. Open-source Python framework for validating LLM inputs and outputs, with configurable actions for failed checks and an API server. Co-founder; joined Harvey product and engineering, researched 2026-10-27.

## Works with

- [Shreya Rajpal](https://www.anchorterminal.com/people/shreya-rajpal/), Co-founder and former CEO; joined Harvey product and engineering

## Backed by

- [Zetta Venture Partners](https://www.anchorterminal.com/investors/zetta-venture-partners/)
- [Bloomberg Beta](https://www.anchorterminal.com/investors/bloomberg-beta/)
- [Pear VC](https://www.anchorterminal.com/investors/pear-vc/)
- [Factory](https://www.anchorterminal.com/investors/factory/)
- [Microsoft](https://www.anchorterminal.com/investors/microsoft/)

## Questions

### Who is Zayd Simjee?

Zayd Simjee co-founded Guardrails AI with Shreya Rajpal. The company built an open-source framework and the Guardrails Hub of validators for testing and controlling the behaviour of AI applications and agents. After Harvey acquired Guardrails in September 2026, he joined Harvey's product and engineering organisation.

### What does Guardrails AI (Harvey) make?

Anchor Terminal lists Guardrails AI from Guardrails AI (Harvey). Open-source Python framework for validating LLM inputs and outputs, with configurable actions for failed checks and an API server.

### Who has invested in Guardrails AI (Harvey)?

The sources our research read name Zetta Venture Partners, Bloomberg Beta, Pear VC, Factory and Microsoft.

### How are Zayd's tools graded?

Guardrails AI is graded D, 50 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

## Sources

- https://guardrailsai.com/blog/guardrails-ai-joins-harvey
- https://x.com/ShreyaR
- https://x.com/zaydsimjee
- https://guardrailsai.com/
- https://guardrailsai.com
- https://x.com/guardrails_ai
- https://guardrailsai.com/docs
- https://guardrailsai.com/guardrails/docs/help
- https://discord.com/invite/kVZEnR4WQK

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. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.

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