AI agents operate at machine speed, making thousands of decisions per minute in the crypto economy. Unlike humans who browse block explorers, these agents require structured, normalized, and queryable blockchain data to function effectively.
- Agents assessing DeFi risk cannot work with raw transaction logs
- They need data formatted for rapid querying and decision-making
- The infrastructure enabling this agent economy operates behind the scenes
This represents a fundamental shift in how blockchain data must be organized and accessed. As AI agents become more prevalent in web3, the demand for properly structured data infrastructure will intensify dramatically.
The agent economy isn't about human-readable interfaces鈥攊t's about machine-optimized data pipelines that can support thousands of automated decisions every minute.
AI agents don't browse block explorers. They query, decide, and act thousands of times a minute. An agent asked to assess DeFi risk can't parse raw logs. It needs structured, normalized, queryable data. The agent economy runs on infrastructure most people never see.
Choosing Between Subgraphs and Substreams for Blockchain Data
The Graph has published guidance on selecting the right blockchain data solution for your application. **Two distinct approaches:** - **Subgraphs**: Provide structured, queryable onchain data optimized for user-facing applications - **Substreams**: Offer high-throughput data pipelines that can sink data to any destination The choice depends on your specific use case - neither solution replaces the other. Both serve as critical infrastructure for the onchain data layer that AI and agent-based applications rely on. The blog post explains how to choose between them and provides guidance on migrating between the two approaches as your needs evolve. [Read the full guide](https://thegraph.com/blog/subgraphs-or-substreams-blockchain-data-solution/)
The Graph Indexes ERC-8004 Agents Across Five Major Blockchains
The Graph now indexes all ERC-8004 trustless agents across Base, BNB Chain, Ethereum, Monad, and Polygon networks. **Key capabilities:** - Millisecond-fast agent discovery - Reputation queries - Capability search functionality The indexing system enables rapid queries across the open agent economy, providing a data layer for agent identities, capabilities, reputation, and validation. The Agent0 Subgraphs have already processed over 1 million queries since launch. [Read more](http://thegraph.com/blog/agent0-subgraphs-live-erc-8004-agent-economy/)
The Graph Network Enables End-to-End Machine-Native Payments with x402 and GraphTally
**The Graph Network now supports x402 payments directly for Subgraphs**, allowing agents and apps to pay per query in USDC over HTTP without API keys, accounts, or sessions. **Key features:** - Pay-per-query model with no upfront setup - USDC payments over HTTP - Zero friction for machine-to-machine transactions **How it works:** The system combines two layers: - **x402 payments** handle user-to-gateway transactions - **GraphTally** manages gateway-to-indexer settlements underneath GraphTally processes payments through signed Receipts (IOUs) that are aggregated offchain and settled onchain in batches, enabling sub-cent, high-frequency transactions without gas fees per query. **The result:** A complete machine-native payment flow from end user to data indexer, with trust-minimized, microsecond-speed processing at network scale. Learn more about [GraphTally micropayments](https://thegraph.com/blog/graphtally-micropayments-machine-economy/)
Agent0 Subgraphs Now Live Across Five Mainnets with Unified GraphQL Schema
**Agent0 Subgraphs are now operational across five major blockchain networks** - Base, BNB Chain, Ethereum, Monad, and Polygon - using a single GraphQL schema. **Key features:** - Real-time indexing of every ERC-8004 agent across all chains - No code rewrites needed when switching between networks - Already processed over 1 million queries - Accessible via [Graph Explorer](https://thegraph.com/explorer?search=agent0) **What this enables:** - Developers can query agent data with a single GraphQL request instead of scanning thousands of blocks - AI agents can discover, hire, and interact with each other using structured blockchain data - Machine-scale data access for agents that operate continuously The infrastructure indexes agent identities, capabilities, reputation, and validation data in milliseconds. Developers building ERC-8004 agents can now access comprehensive onchain data without building custom indexers.