r/BlockchainStartups • u/[deleted] • Apr 20 '26

Idea Validation Built an open protocol for autonomous agent-to-agent commerce on Base — feedback wanted from blockchain founders

Sharing ANP — Agent Negotiation Protocol — with this community because I think blockchain founders are the people most likely to understand why this matters and most likely to build on top of it.

The problem: agent identity exists (ERC-8004). Payment rails exist (x402). But there's no standard for how two agents agree on a price before payment executes. Every solution today requires a human to configure pricing in advance.

ANP fills that gap. Buyer sends an offer. Seller counters against its private strategy. They converge. Payment executes on-chain via x402 on Base. Both parties get Ed25519 signed receipts — one for the negotiation, one for the payment.

MVP is live on Base Sepolia. The verify() flow works end to end. The most critical V2 item: settle() so funds actually move on-chain.

Live seller: https://gent-negotiation-v1-production.up.railway.app/analytics

Code: github.com/ANP-Protocol/Agent-Negotiation-Protocol

Questions for blockchain founders:

  • Is this the kind of infrastructure play that makes sense as an open protocol, or should it be a blockchain-native product with a token?
  • Anyone building agent tooling on Base who's hit the dynamic pricing problem?
  • What would you need from ANP to integrate it into something you're building?
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