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The Graph Hackathon Resources
The Graph Hackathon Resources
Table of Contents
The Graph is awarding $15,000 across two tracks at ETHOnline 2026. ETHOnline is an async, online hackathon, so you can build and submit from anywhere. Submit a public repository and a two-to-four-minute demo video, and select The Graph as one of your partner prizes on the submission form. (Event dates: September 4–16, 2026. Submission deadline is around September 13, 2026. Confirm both on the before the event.)
Best AI Project on The Graph (6 awards)
Two eligibility pools, each with three awards:
Net-new projects (Start Fresh): 1st - $2,500 | 2nd - $1,500 | 3rd - $1,000
Continuity projects (Extend Open Source / Ship a Feature): 1st - $2,500 | 2nd - $1,500 | 3rd - $1,000
- One AI track covering both the tooling that makes The Graph easier to use from AI environments like Claude, Cursor, and ChatGPT, and the AI agents or applications that use The Graph as their live source of blockchain data. Build reusable infrastructure (new or extended MCP servers, agent SKILLs, x402 payment tooling, A2A integrations, or framework plugins), or ship an agent or app that turns structured, real-time on-chain data into intelligent behavior. Query 15,000+ Subgraphs through the Subgraph MCP in natural language, stream data with Substreams, or let an agent pay per query autonomously with x402. A featured challenge from the Substreams team rewards using the Substreams SKILLs to deliver the best one-prompt deployment, going from a single natural-language prompt to a working, deployed Substreams pipeline. Net-new builds compete in the Start Fresh pool; projects that extend an existing open-source repo or ship a feature on an existing product compete in the Continuity pool.
- Examples include (1) a DeFi research agent that answers natural-language questions like "which lending markets have the highest USDC supply APY right now?" by querying Subgraphs through the Subgraph MCP; (2) a one-prompt Substreams deployment that scaffolds, builds, and deploys a pipeline from a single prompt using the Substreams SKILLs; (3) a cross-protocol MCP that fans one query across every protocol built to a shared standard schema, following the pattern of PaulieB's Lending MCP; (4) a governance assistant that summarizes DAO proposals and voting activity pulled from Subgraphs.
Best Use of Composable or Standardized Graph Products (3 awards): 1st - $2,500 | 2nd - $1,500 | 3rd - $1,000
- Rewarding projects that build on The Graph's composable and standardized products. Use Standardized Subgraphs (one shared schema across every protocol of a type) to run a single query across many protocols, compose reusable Substreams packages into new pipelines, or layer the Subgraph MCP on top for cross-protocol analysis. Contributing a new composable Substreams module for an emerging standard, such as ERC-4626 tokenized-vault flows, also counts. The best submissions show the leverage of standards: one query pattern spanning many protocols, or one pipeline reused across chains.
- Examples include (1) a cross-protocol analytics dashboard comparing TVL or revenue across ten lending markets with a single Lending / CDP standard-schema query; (2) a layered MCP that lets one agent compare lending, DEX, and derivatives markets side by side; (3) a new composable Substreams module for an emerging standard, such as ERC-4626 tokenized-vault flows.
Here are helpful ways to support your hackathon experience with The Graph:
These are the that The Graph currently indexes.
that showcases various examples of how to build with The Graph’s products
The Graph’s is a quick and easy way to fetch token, wallet, price and NFT data.
- : Search, inspect, and query 15,000+ Subgraphs on The Graph Network in natural language
- : Agent guides for GraphQL query patterns, schema design, and when to use Subgraphs vs Substreams
- : Agent guides for the Substreams ETL model, sinks, package discovery, and gRPC patterns
- : Pay per query in USDC over HTTP from a Subgraph Gateway, with no API key or account
Subgraphs are customizable APIs that are optimized for indexing smart contract events. You can create net new Subgraphs using the guides below, leverage thousands of existing public Subgraphs via , or query a Subgraph with AI assistants using .
Querying Subgraphs
Discover publicly available Subgraph endpoints on .
- : These Subgraphs have standardized schemas, with the same query using . You can also learn more about the code on .
Building Subgraphs
Subgraph Best Practices
index raw blockchain data (events, calls, internal transactions, mempool data, etc.) from EVM and non-EVM chains such as Solana and TRON.
About The Graph
The Graph is a suite of blockchain data infrastructure products that extract, process, and deliver scalable blockchain data solutions across 60+ networks. The Graph enables application developers, data analysts, AI agents, and enterprise teams that need structured, real-time access to blockchain data. Products include Subgraphs, Firehose, Substreams, and Amp. As of early 2026, The Graph has served over 1.27 trillion queries to more than 75,000 projects, powered by a network of independent Indexers around the world.
Follow The Graph on , , , and . Join the community on The Graph’s , join technical discussions on The Graph’s .
