List of Off-Chain Data APIs and Services companies in Web3 (2026)

DataKit is an off-chain data API that unifies yield, validator, and protocol metadata across multiple blockchain networks. It delivers risk assessments, real-time and historical reward tracking, and standardized position and balance data so clients can monitor yield performance without building their own data pipelines. The service supports analytics on returns, fees, and yield comparisons used across the other Yield.xyz products.

ARC is an open-source digital asset reference data and security master database providing standardized asset identification and non-hierarchical classification for institutional operations. The system maintains point-in-time asset metadata covering a broad range of digital assets and instruments, supporting settlement workflows, execution management, risk assessment, and accounting reconciliation across front, middle, and back office functions.

Steer Data Marketplace aggregates on-chain and off-chain data feeds into a unified interface for developers building automated strategies. It allows data and compute providers to list their sources so that applications can integrate multiple feeds without separate custom integrations. Developers use it to power strategy logic and automation with external market and protocol data.

Membit provides real-time data services for large language models and AI applications through a network of Data Hunters. The platform bridges decentralized data sources with AI systems enabling LLMs to access current information beyond their training data cutoffs.

xInsight is an AI-driven analytics tool that provides real-time social sentiment from tweets and surfaces indicators such as SSI and MPR to identify market pulse.

CCRI MiCA API that provides sustainability indicators required under MiCA, including electricity consumption and carbon emissions with endpoints for networks, activities, and tokens, documented via OpenAPI.

Parfin Data Reporting Center is a solution for generating and unifying data across digital assets operations, reducing manual work and improving operational efficiency through automated data standardization and export capabilities.

AgentKey is the marketplace for AI agents to get trusted tools and live data. It helps agents discover and use external capabilities when their native abilities are not enough, from web search and page reading to social platforms (X, Reddit, TikTok, Instagram, YouTube and more), crypto data, market data, and business workflows. AgentKey supports MCP and works with Claude, Cursor, OpenClaw, and other MCP-compatible agents. Install it once, and your agent can access the right tools and data capabilities through one marketplace, without manually wiring every source one by one.

Token Terminal Studio allows analysts to create custom charts and dashboards by leveraging Token Terminal's onchain data, enabling advanced data visualization and comparative analysis.

A data analytics platform focused on stablecoin market trends and predictions. Users can analyze stablecoin movement patterns, market dynamics, and stability metrics to inform investment and compliance decisions.

B2P Central API is a REST interface providing programmatic access to aggregated P2P Bitcoin offers, BTC fiat rates, and crypto swap rates from multiple privacy-focused providers. The system exposes endpoints for offer querying with provider metadata, BTC rate retrieval, and swap lifecycle management including creation and status tracking. API access requires a key obtained via Bitcoin payment.

The Grid Data API provides standardized metadata for Web3 projects, products, and assets through a GraphQL interface, enabling developers to integrate accurate ecosystem data into their applications.

Term Finance Wallet Analyzer evaluates DeFi wallet activity and assigns scores while distributing Term Points. The system analyzes transaction history and protocol engagement to calculate DeFi participation metrics.

XSwap Analytics provides on-chain data tracking and visualization for XRC-20 tokens trading on XSwap DEX. Users can monitor liquidity metrics, trading volumes, token pair performance, transaction history, and wallet activity through dashboard interfaces and API access.

Webull Open API provides programmatic access to market data and brokerage functionality through REST and streaming interfaces. It includes a Market Data API for real-time and historical quotes, candlestick bars, depth-of-book, snapshots, and live data streams across equities, options, futures, and cryptocurrencies; a Trading API for order placement, modification, cancellation, and account position management across equities, options, crypto, and futures; a Connect API providing OAuth-based authorization for third-party applications to integrate with Webull user accounts; and a Broker API for institutional connectivity. SDKs and AI-friendly resources including a Model Context Protocol (MCP) server and LLM reference files are also available. Authentication uses HMAC-based request signing.

SwiftRef is a global financial reference data platform providing standardized identifiers for payment routing, counterparty identification, and regulatory reporting. The platform delivers BIC data for financial institution identification, IBAN validation, LEI data, SEPA directory content, standing settlement instructions, and participant registries. Data is distributed through file-based delivery, an online portal, and real-time API endpoints.

A platform offering access to environmental data collected from the Ambios sensor network, making datasets available to enterprises, AI applications, and research institutions.

OrbitFlare Solana gRPC delivers advanced Solana data streaming capabilities through gRPC protocol, enabling real-time blockchain data access for applications requiring continuous transaction monitoring, account updates, and high-throughput data streaming.

Decentralized network leveraging idle bandwidth/storage for AI data validation, rewarding with GRASS points.

A DEX for trading tokenized data assets across multiple blockchain networks.

Web3 platform where users earn rewards by completing AI training tasks and contributing to language datasets.

Glint Analytics Platform processes blockchain data into interactive visualizations for analysis and sharing. The system integrates natural language processing for simplified query creation while maintaining an accessible user interface. The platform tracks content engagement for reward allocation and enables community interaction with analytical content. Users can create dashboards through low-code interfaces that reduce technical barriers to on-chain data analysis.

DTI Registry is an off-chain database that stores and manages allocations of Digital Token Identifiers for digital assets. It allows users to search for existing identifiers, request new allocations, and access identifying data used to distinguish digital tokens across markets. Financial institutions, exchanges, and data providers rely on it for consistent digital asset identification and regulatory compliance purposes.

Stablecoin Directory is a directory listing businesses that accept stablecoin payments, browsable by category and location. The platform displays stablecoin adoption metrics such as active addresses and transaction volume, and includes a curated tools section covering invoicing, checkout, and accounting solutions for stablecoin acceptance alongside reports on stablecoin usage patterns.

The FreshCredit App is a consumer mobile and web application that provides free credit scores, portable identity verification, and self-custody management of financial data. Users connect their own accounts to build a credit report structured from data they control, held in an encrypted vault on the user's own device rather than on centralized servers, with an optional encrypted personal cloud backup. The app integrates the platform's identity credential and offer-matching marketplace, letting users reuse a verified credential across providers and access personalized credit offers without a subscription fee.

Kinexys Liink is a bank-led peer-to-peer permissioned network enabling secure payment data sharing between financial institutions and fintechs. The platform offers Confirm for account validation and Route Logic for cross-currency payment intelligence with near real-time convertibility validation.

DataHive is a data contribution platform accessed via browser extensions, mobile apps, and a dashboard. Users share anonymized web, image, and video data and earn rewards tracked by a points system.

Databases delivers high-performance PostgreSQL database instances tailored for demanding workloads with optimized configurations for enterprise applications.

MILO is a Telegram-native personal assistant bot accessible through @milopabot that provides CRM functionality, contact organization, data import and export capabilities, and workflow automation features. The system operates entirely within Telegram, offering stealth CRM operations, intelligent coordination, and automated follow-ups for professional users managing contacts and operations through messaging platforms.

The first open-source, Web3-native Large Language Model, trained on millions of transactions.

Genesis Knowledge Ingestion implements community-driven data validation through AI-powered nodes, enabling contributors to submit knowledge pieces for protocol rewards. The system processes submissions with AI filtering and human validation to build verified datasets.

BitMind delivers AI-generated content detection via a multi-channel platform covering REST API, web interface, mobile apps, and browser extension. The system processes image and video detection requests through an ML inference layer backed by ensemble models continuously refreshed through Bittensor Subnet 34 competition. Standard and enterprise API tiers include C2PA content credential extraction and similarity matching against known synthetic media, with zero-data-retention processing available for compliance workloads.

Neynar Data Analytics provides indexed databases, data pipelines, and analytics tools for processing Farcaster network data, including user scores and network insights.

Bitcoin Treasury Portal is a public website that publishes El Salvador’s state Bitcoin addresses, daily BTC purchases and aggregate holdings for on-chain audit.

FAIR Public API is a data service that exposes reputation and identity scores for investors and founders participating in private fundraising. It returns a Social Impact Score derived from social media analysis, a Token Holder Score derived from on-chain wallet activity, and a combined public profile covering identity and wallet data for a given handle or address. Developers authenticate with client credentials and query the endpoints to evaluate the credibility and trading behavior of individuals before engaging with them on deals.

Crypto analysis platform combining country rankings, exchange reviews, and regulatory insights.

Funding Dashboard is a data platform for crypto venture funding tracking with market analysis and deal flow monitoring, providing investors and founders with funding trends. The system aggregates venture data while offering industry-specific insights.

Genesis I is a synthetic dataset containing 41 billion text tokens designed for training STEM-focused language models in mathematics, physics, biology, and medicine. The dataset was generated through synthetic data production methods and validated across scientific benchmarks to support the development of reasoning and problem-solving capabilities in open-source AI models.

Registry Explorer implements a comprehensive interface for exploring certificates and historical registry data, providing users with tools to search certificates, verify their authenticity, and browse historical merkle roots for both certificate and circuit registries with their validity periods and counts.

A REST API that provides programmatic access to historical social data, including mentions with smart engagement, trending tokens, account statistics, and narrative analysis.

The ANNA Service Bureau is a central data hub collecting and distributing standardized global financial instrument identifier data. The system provides comprehensive ISIN, FISN, and CFI code information through various access methods including API connectivity, daily feeds, and portfolio services.

A data platform that tracks Electronic Money Token issuers and Crypto-Asset Service Providers under MiCA, showing regulatory status, geography, and issuer details across Europe.

MeshMap Open 3D Map is a crowdsourced spatial dataset that collects and serves 3D scans for XR apps. It invites users to upload scans from phones, drones, or scanners to build a global map for placing and discovering location-based content.

Tx FUSION ODDS is a real-time sports betting data feed that aggregates live odds from multiple sources. The service delivers odds updates with latency as low as 8-10 milliseconds, enabling sportsbook operators to maintain competitive pricing and manage trading risk across various sports markets.

Repository & Derivatives Services is a Global regulatory reporting and OTC derivatives lifecycle services covering derivatives trade repositories and reporting across multiple jurisdictions. The Global Trade Repository (GTR) operates as a registered trade repository under EMIR, CFTC, SEC, SFTR, MAS, JFSA, ASIC, HKMA, and other regulatory frameworks across North America, Europe/UK, and Asia-Pacific. The Trade Information Warehouse (TIW) is a global central record-keeping and lifecycle management service for OTC credit derivatives, handling credit event processing and payment settlement for the CDS market. DTCC Report Hub provides consolidated regulatory reporting tools including the Trade Reporting Analytics service for data quality and performance insights, and the UTI Exchange service for generating and sharing unique transaction identifiers.