Agent0 Subgraphs Now Live Across Five Mainnets with Unified GraphQL Schema

🔗 Five chains one schema

By The Graph
Apr 24, 2026, 2:16 AM
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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

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.​

Sources

Most AI agents are still working off training data or manually pasted context. Now, any onchain dataset indexed on The Graph Network, DeFi protocols, NFT activity, governance data, identity, gaming, can be wired into an AI assistant as a live, queryable tool in an afternoon.

The Graph
The Graph
@graphprotocol

Every indexed dataset on The Graph Network is now a potential tool for an AI agent. Not someday. Today. That means any protocol, any wallet, any onchain activity that's already been indexed can be queried in plain English by an AI assistant, without a developer writing custom

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Right now, AI agents struggle with blockchain data because the raw data is illegible. Hex blobs, fragmented sources, missing context. The agents hallucinate or fail. The Graph Network has spent seven years turning that raw data into clean, structured, queryable databases. Over

Graphtronauts
Graphtronauts
@graphtronauts_c

x.com/i/article/2037…

109
Reply

Every indexed dataset on The Graph Network is now a potential tool for an AI agent. Not someday. Today. That means any protocol, any wallet, any onchain activity that's already been indexed can be queried in plain English by an AI assistant, without a developer writing custom

Graphtronauts
Graphtronauts
@graphtronauts_c

x.com/i/article/2034…

117
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Read more about The Graph

Agent0 Subgraphs: Cross-Chain Agent Discovery in One Query

**Agent0 Subgraphs now enable developers to query blockchain agent data across five chains with a single GraphQL request.** The subgraphs index ERC-8004 agents on Base, BNB Chain, Ethereum, Monad, and Polygon - delivering results in milliseconds without RPC rate limits. **What's now queryable:** - Active MCP agents across all five chains - Agent rankings by capability - Complete reputation histories - Cross-chain adoption metrics - Real-time registration feeds Developers previously needed custom indexers to scan blocks, parse events, and manage IPFS files. The unified GraphQL schema eliminates chain-specific rewrites - switching networks requires only a parameter change. The subgraphs have already processed over 1M queries, providing the data infrastructure for agent marketplaces, discovery systems, and reputation dashboards. [Explore on Graph Explorer](https://thegraph.com/explorer?search=agent0)

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The Graph Gateway Enables Direct USDC Payments for Subgraph Queries

The Graph Gateway has integrated x402 payment support, allowing developers to query any Subgraph using USDC on Base without requiring API keys. **Key Features:** - Direct USDC payments on Base network - No API key management needed - Simple npm package installation: `@graphprotocol/client-x402` This update streamlines the payment process for accessing blockchain data through The Graph's infrastructure, removing traditional authentication barriers. [Documentation available here](https://thegraph.com/docs/en/subgraphs/guides/x402-payments/)

🔗 One Query Unlocks 60 DeFi Protocols

A community builder solved DeFi's data fragmentation problem by combining standardized Subgraphs with an MCP server. **The Challenge:** - Each lending protocol uses different data formats - Previously required 40 custom adapters for 40 protocols - No unified way to query across platforms **The Solution:** Paul Barba integrated Messari's standardized Subgraphs on The Graph network with an MCP server, creating a single interface for querying DeFi data. **The Impact:** - Access to 60 lending protocols - Coverage across 15 chains - One unified query system Read the full story: [The Graph Blog](https://thegraph.com/blog/community-builder-queried-defi-lending-protocols-subgraphs-mcp/)