MarketplaceMedium Effortglobal

AgentPassport — Lightweight Identity & Reputation Registry for AI Agents

AI agents are multiplying exponentially. There are 6,400+ MCP servers, every SaaS is shipping "AI agents," and multi-agent systems are becoming the default architecture. But there's a fundamental problem: no agent has a verified identity.

Score78/100
Mar 30, 2026
TAM
€8.5B — Global AI agent identity + trust infrastructure (intersection of decentralized identity ~$7-17B and agentic AI ~$9B markets)
SAM
€850M — Startups and mid-market companies deploying AI agents needing identity/trust management (est. 200K companies × $350/mo avg)
SOM
€600K — 500 paying teams at avg $100/mo in year 1-2
AISaaSMarketplaceSMEAPI

AgentPassport — Lightweight Identity & Reputation Registry for AI Agents

The Problem

AI agents are multiplying exponentially. There are 6,400+ MCP servers, every SaaS is shipping "AI agents," and multi-agent systems are becoming the default architecture. But there's a fundamental problem: no agent has a verified identity.

When Agent A calls Agent B's API, there's no standardized way to verify: Who built this agent? What permissions does it have? Has it behaved reliably in the past? Is it the same agent that was authorized last week, or has it been tampered with?

This is the "wild west" phase of agentic AI. The equivalent of the internet before SSL certificates. Enterprise teams deploying agents face three immediate problems:

  1. No audit trail. When an agent makes a bad decision, you can't trace it back through a chain of agent interactions.
  2. No trust scoring. You can't distinguish between a well-tested agent and a rogue one before granting API access.
  3. No revocation. If an agent is compromised, there's no standard way to invalidate its credentials across all systems it accesses.

Ready to build this?

This idea scored 78/100. Get tomorrow's in your inbox, free, no account needed.

Free forever. One idea per day. Unsubscribe anytime.