Anyblock
Anyblock's Software-as-a-Service (SaaS) provides Blockchain JSON-RPC Access for Bitcoin, Ethereum & more. Our blockchain API is fast and reliable. Queries take less than 100 milliseconds. Multiple nodes are load-balanced. Clients for Ethereum: Parity/OpenEthereum & Besu Amazing support. Fast and personal responses. Technical advice with code samples. Extensive documentation: API, tutorials, FAQs, ...
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1inch Developer Portal
The 1inch Developer Portal, powered by the 1inch Labs, is a cloud SaaS (software as a service) platform for Web3 tools and services.
The platform offers multiple advantages. The 1inch Aggregation Protocol facilitates price transparency and access to practically unlimited liquidity on many blockchains. Meanwhile, the Pathfinder algorithm discovers the most efficient paths for token swaps, enabling splits between different protocols and gas optimization to ensure the best possible swap rates. Another major advantage of 1inch APIs is a very short response time of below 400 ms, which is one of the best offerings on the market. Thanks to innovative gas optimization features, developers integrating 1inch APIs can offer their users substantial gas savings. Finally, 1inch APIs provide aggregated market data for self-custodial order executions.
The currently available APIs are: Swap, Balance, Transaction Gateway, Orderbook, Traces, Fusion, Spot Price, Token, Portfolio, NFT, Gas Price.
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Nomics
We are an API-first cryptoasset company that provides professional-grade market data APIs for institutional crypto investors and exchanges. We offer products and services that enable funds, fintech apps, and exchanges to have access to clean, normalized, & gapless primary source trade data & order book information. To make the decentralized financial system more accessible and understandable for data-driven investors. Index 95% trade, order book, transaction and on-chain data available for tokenized assets. This includes security tokens, tokenized funds, indexes and REITs, as well as tokenized securities and tokenized funds. We are clear, concise, and articulate. We listen carefully and seek to understand before we react. In stressful situations, we maintain calm poise to get the best thinking. We give honest feedback to colleagues, and share information openly and proactively.
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BlockSpan
BlockSpan is an NFT API platform that allows software companies to develop on blockchain technology. We combine data from multiple chains and offer an API layer to enable NFT developers to retrieve token values, current ownership, metadata, and cached images in real-time. It doesn't take much to support multiple blockchains or switch chains. Instead of scraping block logs, you can write a simple rest integration. Our API returns more than transaction data. It also returns price, current owner, metadata and other information. Currently, Ethereum, Polygon and Arbitrum are supported. More will be added in the future. We have extensive documentation that includes an interactive API console for each endpoint. Our NFT API supports token metadata and cached image URLs, saving API and IPFS calls to fetch this data.
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