Agent0 Subgraphs: Cross-Chain Agent Discovery in One Query
Agent0 Subgraphs: Cross-Chain Agent Discovery in One Query
🤖 Five chains, 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.
The agent economy will generate machine-scale demand for blockchain data. Thousands of queries per minute from agents that don't sleep, don't get bored, and don't accept rate limits. If you're building on ERC-8004 — you don't need to build an indexer. We already did. 🔗
The Agent0 Subgraphs are now live on: @base @BNBCHAIN @Ethereum @Monad @0xPolygon One unified GraphQL schema across all five. Switch chains with a parameter, not a rewrite.
AI agents are about to start hiring each other, discovering each other, paying each other, and rating each other. Each one of those interactions needs structured, real-time blockchain data. The Agent0 Subgraphs are now indexing all of it. 🧵
What this unlocks: → Agent marketplaces → Runtime agent-to-agent discovery → Reputation dashboards and trust scores → Cross-chain analytics → Real-time monitoring Things that used to take a custom indexer are now one GraphQL query.
One GraphQL schema. Five mainnets. Zero rewrites. The Agent0 Subgraphs are live on @Base, @BNBCHAIN, @Ethereum, @Monad, and @0xPolygonFdn — indexing every ERC-8004 agent on every chain in real time. Search "agent0" on Graph Explorer. 👇 thegraph.com/explorer?searc…
If you're building an ERC-8004 agent, you have two options for discovery: →Scan thousands of blocks per chain, parse events, fetch IPFS files, fight RPC limits, and pray. →Send one GraphQL query to an Agent0 Subgraph. Pick option 2. The Graph already built it.
thegraph.com/blog/agent0-su…
Things that are now a single GraphQL query thanks to the Agent0 Subgraphs: → Every active MCP agent across 5 chains → Top-rated agents by capability → Full reputation history for any agent → Cross-chain ERC-8004 adoption stats → Real-time feed of new registrations All
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.
🔧 The Graph Overhauls Economics
The Graph Network is rolling out **major economic upgrades** in 2026 that fundamentally change how the protocol operates. **Key Changes:** - **REO (Rewards Engine Optimization)** - Indexer rewards now tied to actual work performed, not just passive staking - **DIPs (Direct Indexer Payments)** - Consumers can pay Indexers directly for specific data services - **Liquid staking** - Makes $GRT delegation more accessible for centralized exchanges These changes aim to create **better incentive alignment** between network participants and build a more sustainable economic model. The shift from passive staking to proof-of-work rewards represents a fundamental restructuring of how value flows through the network. The upgrades expand The Graph's capabilities beyond its current single-service model, enabling multiple data services to operate simultaneously while directing fees and issuance across the ecosystem.
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/)