Juan Figuera

Payments taught me scale. AI is teaching me scope.

NowDirector, Product — Amex Digital Labs
BeforeCo-founder, HarvestYield · acquired 2025
BuildingAPOA — Open Source authorization for AI agents

About

Electrical engineer by training, product builder by craft, founder by instinct.

The question I keep coming back to lately: how an agent gets authority to act on someone's behalf, and how that authority stays scoped, logged, and revocable. Most agent demos end with an API key and hope. That's the gap APOA is trying to close, as an open-source layer on top of MCP.

Notes

May 2026

The Burrito Problem (a solution)

Kyle Kingsbury joked an AI agent might get talked into a $950 grandmother burrito by El Farolito's chatbot. I think he was being optimistic. So I built a working prototype where the boundaries live in a signed token between the LLM and the execution layer, not in the prompt.

May 2026

Two OpenClaw agents negotiate a YC SAFE with Agentic Power of Attorney

I gave an AI agent access to act on my behalf a few months ago. Within ten minutes I was scared of it. Not because it did anything wrong. Because I had no way to guarantee it wouldn't. The entire trust model was a system prompt and vibes. I built APOA as my take on a solution.

Projects

2026 →

APOA

Agentic Power of Attorney

Open-source authorization for AI agents, modeled on power of attorney. Scopes, attenuating delegation, and revocation, with MCP and A2A integrations.

Open SourceAI Agentsagenticpoa.com
2026 →

Sello

Verifiable receipts for agent actions

An open protocol where the services an agent calls sign tamper-proof receipts you verify with your own key. Find My, but for AI agents.

Open SourceAI Agentssello.build
2026 →

sshsign

SSH signing service for AI agents

An SSH signing service that lets an agent sign within limits you set. High-stakes signatures need a human co-sign. Part of the APOA family.

Open SourceAI Agentssshsign.dev
2026 →

wwxd

What would X do?

Open-source app for chatting with AI impressions of anyone. Put a few in a room together and watch them riff off each other.

Open SourceAI Personaswwxd.chat
2026 →

Ship Responsibly

A pre-flight manual for the vibecoding era

A pre-flight manual for AI-assisted software: a severity model, a 25-point checklist, prompt templates, and seven postmortems.

PDFAgentic Engineeringshipresponsibly.com
2025

Silicon Fighter

Street Fighter, but for CEOs

A take on the Street Fighter game I grew up with, starring tech CEOs instead of Ryu and Ken. Built over a Thanksgiving weekend with Claude Code, Cursor, and Nano Banana Pro.

Publications

Say hi

Always looking to meet interesting people!