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substrate-api-sidecar
REST service that makes it easy to interact with blockchain nodes built using Substrate's FRAME framework.
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api
Promise and RxJS APIs around Polkadot and Substrate based chains via RPC calls. It is dynamically generated based on what the Substrate runtime provides in terms of metadata. (by polkadot-js)
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
You could just look it up on a block explorer (e.g. https://polkascan.io/polkadot/account/14vfj7qh2UjNTb14PapHXNAYZVfEajxEufHA3wzJmGojiv9x ) or use Sidecar ( https://github.com/paritytech/substrate-api-sidecar )
Sidecar and running your own node are probably your best bet. Or you can interact via the Polkadot API - https://github.com/polkadot-js/api