# Halliday

> Agentic workflow protocol for Web3 — aims to let developers build on-chain apps without hand-writing every smart contract.

## Why it is interesting

Second a16z crypto round after $6M seed (2022); targets AI agents that operate safely on blockchain rails.

## Profile

- **Stage:** series-a
- **Status:** private
- **Industries:** enterprise-saas
- **Coverage:** full
- **Last updated:** 2026-07-24

## Key facts

- Seed (2022): $6M led by a16z crypto (company blog)
- Series A (Mar 2025): $20M led by a16z crypto; SV Angel, Avalanche Blizzard Fund, Credibly Neutral, Alt Layer participated (Halliday blog)
- Co-investors not in VCT directory: SV Angel, Avalanche Blizzard Fund, Credibly Neutral, Alt Layer
- VCT directory co-investors: none mapped (non-directory syndicates noted above); reviewed 2026-07-24

## Investors in our directory

- https://venturecapitaltracker.com/fund/andreessen-horowitz

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Source: https://venturecapitaltracker.com/startup/halliday