Developer tools

Haystack

Website
Founded 2024Origin source ↗Checked 2026-09-15

Overview

Haystack automatically learns real customer journeys from production traffic, figures out which ones a code change could affect, and replays them in isolated copies of production to catch regressions before they ship.

When something breaks, Haystack shows exactly what changed across the UI, network calls, and events, then gives the failure back to your coding agent to fix and rerun. Teams get high-fidelity QA without having to write or maintain test cases.

Company description As recorded 2026-11-08

Founders & team

Previously Haystack Software

Company history As recorded 2026-11-08

Akshay Subramaniam

Founder/CEO

Co-founder of Haystack Software. Enjoys building emulators, video games, and productivity software. Previously was a software engineer at Figma, where I led the multi-edit launch and helped launch Find and Replace, accessibility in FigJam, and more!

Founder profile As recorded 2026-09-15

Jake Yatvitskiy

Founder/CTO

Cofounder of Haystack Software. Experienced with AI and Cloud technologies. Previously worked in the High-Performance Computing division at AWS and received a Master's Degree in Machine Learning from Columbia University

Founder profile As recorded 2026-09-15
2team members reported
Source-reported As recorded 2026-09-15

Founded 2024 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedNew York City, NY, USA
Pricing evidenceA pricing page was detected
Maturity: Not assessed · 4 of 6 areas documented

Source-based assessment · automated evidence rules

The retained text does not establish product availability or customer use.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding yearpricing page observeddocumentation observed