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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.
112 projects found · Last updated Sep 26, 2026
Showing 101–112 of 112 results
Sound money should be accessible anywhere
Crypto-as-a-Service provides API infrastructure for businesses to integrate cryptocurrency functionality into their platforms. The system enables KYC verification, wallet services, and transaction processing for enterprise clients through white-label solutions.
TON developer tools — power your blockchain solutions with TON API.
TON API is a hosted on-chain data service for the TON blockchain. It provides REST, streaming, and webhooks endpoints to read accounts, jettons, NFTs, events, and transactions, with extras like emulation, gasless flows, and SDKs so developers can build and run dApps on TON.
The real-time data warehouse for analytics
A specialized data analytics platform built on ClickHouse technology for analyzing blockchain and cryptocurrency data at scale.
Next-generation Starknet Block Explorer
Starkscan API delivers programmatic access to Starknet blockchain data through REST endpoints. Developers can query information about blocks, transactions, contracts, and events with pagination support. The API includes specialized endpoints for NFT data and advanced analytics in the PRO tier.
Revolutionizing Blockchain Performance for the Speed Era
Enterprise-grade data pipelines for curated ETL processes, enabling integration of real-time and historical on-chain data for analytics and insights without managing multiple IDLs or maintaining full ledger copies.
One Stop Shop for Onchain Domains
Resolution Service API provides blockchain domain name resolution through HTTP endpoints, enabling developers to resolve domain metadata and records from UNS, CNS, and ENS naming services. The system caches blockchain events for rapid domain data retrieval without direct blockchain interaction.
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 112 projects 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 the teams behind them. 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.