The Trustless Agentic Economy with ERC 8004 and x402

on YouTube ↗33m

" summary

Live coding shows how ERC-7804 identity NFTs, A2A agent cards and X2X payments compose a working agent economy: an Express A2A server hosts an agent card describing streaming and endpoints, X2X adds 15 lines of middleware to gate that endpoint with stablecoin micropayments, and a client pays 1/10th of a cent per query to get a stock-summary LLM response. The ERC-7804 stack includes identity, reputation (0–100 scores with IPFS or Hedera Consensus Service URIs) and validation registries, with feedback authorized via signed tokens.

AI-written summary · about

" chapters (25)

1. 0:00Introduction
2. 0:11Three Pillars of the Agentic Economy
3. 2:26Technologies: ERC-7804, A2A, X2X
4. 2:49GitHub Repo Walkthrough
5. 3:33A2A Agents and Agent Cards
6. 5:14A2A Client Setup
7. 6:00Introduction to X2X Protocol
8. 7:12X2X for Micropayments and Pay Per Crawl
9. 8:19Implementing X2X Middleware
10. 10:00Combining A2A with X2X Payments
11. 11:47X2X Facilitator Architecture
12. 13:33Client Side X2X Integration
13. 15:30Live Demo: AI Agent with Paid A2A Endpoint
14. 17:14Verifying the Transaction on Hashscan
15. 17:54The Trust Problem in Autonomous Agents
16. 19:46Introduction to ERC-7804
17. 20:58The Three Registries: Identity, Reputation, Validation
18. 22:23Validation Registry Explained
19. 23:16Live Demo: Registering an Agent on ERC-7804
20. 24:38Minting the Identity NFT
21. 25:54Setting Agent Metadata and Trust Mechanisms
22. 27:47Reputation Feedback Flow
23. 28:39Authorizing Feedback with Signed Tokens
24. 29:34Feedback URIs: IPFS vs Hedera Consensus Service
25. 31:20Closing and Discord Call to Action

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