EchoLink

A Decentralized knowledge marketplace: mint AI NFTs and earn whenever someone learns from you.

EchoLink

Created At

ETHOnline 2025

Winner of

Artificial Superintelligence Alliance

Artificial Superintelligence Alliance - Best use of Artificial Superintelligence Alliance 4th place

Project Description

🧠 EchoLink β€” "Minting Knowledge into On-Chain Intelligence"

EchoLink transforms human expertise into autonomous AI assets. It's an AI-powered knowledge minting and monetization platform that allows creators β€” professors, researchers, analysts, or domain experts β€” to upload their insights, have them processed by AI agents, and then minted as on-chain Echo NFTs representing reusable, queryable intelligence with consumer focus.

Each Echo NFT becomes a living knowledge entity: it can be queried via natural language, reasoned through MeTTa symbolic logic, embedded semantically using FAISS, and monetized through PYUSD micropayments are validated and processed by ASI uAgents. Every interaction and payment is transparently tracked through Blockscout's MCP analytics, providing full traceability and trustless accounting.

πŸš€ EchoLink is powered by:

  • 🧩 ASI uAgents: Modular multi-agent communication system handling AI reasoning, payments, and indexing
  • 🧠 MeTTa Language + Hyperon Engine: Symbolic reasoning and inference for structured knowledge graphs
  • πŸ”— Ethereum + Blockscout Integration: On-chain metadata and analytics via Model Context Protocol (MCP)
  • πŸ’Έ PYUSD Integration: Enables trustless direct micropayments and supports bulk credit purchases for AI queries and allows purchase of an Echo NFTs using PYUSD.
  • πŸ—‚οΈ FAISS + Vector Embeddings: Semantic memory and context retrieval for intelligent responses
  • πŸ’¬ AI Analyst Chatbot: Query knowledge directly using natural language, powered by Blockscout MCP

πŸ‘₯ Real-World Personas & Impact:

πŸŽ“ The Creator (Dr. Sarah)

Mints her 3-year MIT Quantum Physics course as an Echo NFT.

  • β†’ Earns $47 PYUSD overnight from 235 global queries
  • β†’ In 90 days, generates $4,200+ in passive income β€” her expertise now earns while she sleeps

πŸ“š The User (Maria)

Needs to understand Einstein's relativity for an exam.

  • β†’ Asks "Why does time slow down near black holes?" and gets an AI-synthesized, precise answer
  • β†’ Saves 6 hours of reading, scores 98/100, and gains instant access to verified intelligence

πŸ” The Analyst (Alex)

Uses the AI Analyst Chatbot to discover the best-performing Echo for quantum algorithms.

  • β†’ Compares 50+ Echos using on-chain Blockscout MCP analytics
  • β†’ Finds the top Echo in 30 seconds instead of 2 hours of manual browsing

πŸ“ˆ The Protocol

Ensures transparency, fairness, and verifiable value flow.

  • β†’ Tracks 50,000+ on-chain transactions and distributes $127,000+ to 234 creators in 6 months
  • β†’ Establishes a trustless, auditable AI knowledge economy powered by Blockscout MCP

In short: EchoLink is building the AI layer of the decentralized knowledge economy β€” where every piece of intelligence has a creator, a value, and a verifiable record.

How it's Made

EchoLink is a Web3-native AI knowledge economy, built by combining multi-agent reasoning, blockchain transparency, and real-time micropayments. Here's how it comes together:

1️⃣ Multi-Agent Intelligence - Artificial Super Intelligence (uAgents + MeTTa + ASI:One)

Architecture: Three specialized agents β€” Orchestrator, Payment, and Knowledge β€” collaborate to handle queries end-to-end. Agentverse Deployment Links: O, P, K

Orchestrator Agent: Routes incoming user queries to the appropriate AI or payment agent.

Knowledge Agent: Uses vector search + MeTTa reasoning and structured knowledge graphs (entity-relation-value triples) powered by LLM synthesis to generate accurate, context-rich answers.

Payment Agent: Handles micropayment validation and ensures seamless on-chain transactions.

ASI:One Integration: Enables natural human-agent conversation, allowing users to query knowledge without technical barriers.

Agentverse Deployment: All agents are discoverable and interoperable on Agentverse, ensuring modularity and scalability.

2️⃣ Payment & Monetization (PayPal PYUSD)

Microtransaction Model: Users pay per query, unlocking flexible monetization for creators.

Subscription & Credit System: 1 PYUSD = 100 credits; users can pay per query or buy bulk access.

One-Time Purchase: Full Echo NFTs can be bought for unlimited lifetime access.

Smart Contract Integration: All PYUSD transactions are ERC-20 compatible, transparent, and directly trigger access permissions.

3️⃣ Analytics & Performance (Blockscout MCP + SDK)

Real-Time Tracking: Every Echo query, payment, and NFT interaction is tracked on-chain and displayed in the leaderboard and stats page.

AI-Powered Insights: The MCP AI Chatbot widget analyzes blockchain data to provide creator earnings, user engagement, and Echo performance metrics.

Transparency: Users and creators can verify all interactions on-chain (Transaction Toast Notifications and History Popup which is seamlessly integrated using Blockscout SDK), building trust in the platform.

4️⃣ Blockchain Infrastructure

Smart Contracts:

  • ERC-721 EchoNFT contracts for knowledge ownership and access control
  • ERC-20 PYUSD token for standardized payments

Network: Deployed on Ethereum Sepolia Testnet for secure, decentralized transaction validation.

πŸ”₯ Hacky / Innovative Bits

Hybrid Intelligence Stack: Combining symbolic reasoning (MeTTa) with neural embeddings for precise and explainable AI answers.

AI–Blockchain Feedback Loop: Using the AI Analyst Chatbot, users can ask real-time queries about the platform, Echo performance, and on-chain activity, while the system tracks and reports its own analytics via Blockscout MCP.

Knowledge as NFTs: Turning human knowledge into monetizable, on-chain assets is a novel approach that merges intellectual property with decentralized finance.

πŸ“Š UI Flow

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