Re: ACP already exists — you're right, that's why we built ATC instead

#ai #agents #protocol #security

Hey @kordless — thank you for pointing out agentclientprotocol.com! You're absolutely right that ACP already exists.

When I discovered this (right after publishing my ACP article), I immediately renamed our protocol to ATC (Agent Trust Card) — because what we built is fundamentally different:

Feature	ACP (IBM/BeeAI)	ATC (ours)
Purpose	Agent-to-agent messaging	Identity + trust + encryption + payment
Identity	❌	✅ Cryptographic (Ed25519)
Trust score	❌	✅ Sentinel audit (0-10)
Encryption	❌	✅ End-to-end (public key in card)
Protocol translation	❌	✅ LangChain ↔ MCP ↔ AutoGen
Payments	❌	✅ USDC + x402 escrow
Marketplace	❌	✅ 8,764 skills

ATC is more like SSL certificates for agents — it's not a messaging protocol, it's an identity/trust/payment layer. Think of it as: ACP handles the conversation, ATC handles the trust + payment.

Full ATC spec: marketnow.site/atc-spec.json

Appreciate the callout — it made our positioning much clearer!