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A service offering developers direct access to information stored on a blockchain, usually for the purpose of building applications on it.
106 projects found · Last updated Sep 4, 2026
Showing 101–106 of 106 results
The easiest way to build on Farcaster
Neynar API provides REST endpoints for accessing Farcaster protocol data, enabling developers to read user profiles, casts, feeds, and social graph information through standardized interfaces.
Modular indexing & query layer for Solana
Developer platform to build, run and query custom Solana indexers with real-time data streaming and instant APIs.
A decentralized autonomous incentivized indexing layer for Solana
Peer-to-peer indexing layer and API that lets developers query Solana data in real time.
The web3 alternative to Google Analytics
Safari Web3 Analytic Platform provides marketing attribution tools, enabling projects to track key metrics like customer acquisition cost (CAC), ROI, and customer lifetime value (LTV) using both on-chain and off-chain data.
The Data Infrastructure Behind Tomorrow's Crypto AI Agents
DigNow Data Platform provides unified API access to verified crypto data through AI-powered aggregation and multi-source integration. The system includes specialized AI agents for market intelligence, project health monitoring, and regulatory compliance analysis, processing data from multiple sources with standardized formatting.
Your Gateway to DeFi Yields
Vaults.fyi API delivers standardized market data and transaction support for DeFi protocols, providing access to yield analytics across multiple networks. The system enables portfolio tracking and generates non-custodial transaction payloads for integration into third-party applications.
Welcome to The Grid's comprehensive directory of onchain data api projects in the Web3 ecosystem. Our team has hand-reviewed and verified each of these 106 companies to ensure you're discovering legitimate, active projects — not abandoned ventures or AI-generated listings.
Unlike automated aggregators, every project in our onchain data api category undergoes manual verification. We check for active development, real teams, and genuine utility. This human-first approach means you spend less time filtering through noise and more time finding the onchain data apisolutions that matter for your needs.
Each project listing includes key information to help you evaluate and connect with these companies. Whether you're researching for investment, seeking partnerships, or looking for onchain data apisolutions to use, our directory provides the verified data you need to make informed decisions in the Web3 space.