
Moralis
QuikNode.io
thirdweb
Ethereum
ChainGPT
One Click Crypto: AI + DeFi
Infura
CoinGecko
RepDB
The premier Web3 development platform. Go to market in minutes or hours, instead of weeks or months, using Moralis' powerful blockchain backend infrastructure. Web3 is just a snippet of code away!
RepDB is a one-time-purchase exercise dataset for developers building fitness and workout apps โ not a subscription, not a rate-limited API. You download the data once and own it: JSON (and SQLite on the higher tier), WebP images, and full EN/DE/ES translations, with no per-request billing and no dependency on our servers staying up.
A free tier includes 400 exercises with flat-style 512ร512 images, attribution-licensed for commercial in-app use. The Starter tier ($199) adds the full catalog in classic white-background style. Standard ($399) adds transparent 1024px images, looping animations, exercise relations (similar/progressions/regressions), workout templates, and embeddings โ exclusive to that tier.
Every exercise includes muscle-group highlighting, equipment/muscle icons, MET values, and safety/goal tags. Compared to GIF- or JPG-based competitor APIs, RepDB images are transparent WebP with no watermarks, so they drop into any app UI without a white box around them.
Moralis
RepDBRepDB's answer:
RepDB is sold as a one-time download, not a metered API โ you own the JSON/SQLite data and WebP images outright, with no rate limits, no per-request billing, and no risk of the vendor cutting off access. It's also the only dataset in this space with EN/DE/ES translations, transparent (alpha-channel) images with no watermark, muscle-group highlighting, safety/goal tags, and looping animations on the higher tier.
RepDB's answer:
RepDB grew out of a consumer workout app its creator was building solo. Sourcing exercise images and data meant either paying for a subscription API with usage caps and no caching rights, or producing everything from scratch. The illustrated, multi-language dataset was built for us first, then split out as its own product once it became clear other indie developers had the same problem and preferred to buy the data outright rather than rent it through an API.
RepDB's answer:
Most alternatives are subscription APIs โ you pay monthly, you're capped on requests, and ExerciseDB's terms of use explicitly forbid caching or storing the data at all, so every image render is a live paid API call. RepDB is the opposite: pay once, download the files, self-host with zero ongoing dependency. It's also the only option offering true DE/ES localization and transparent images instead of a white box behind every exercise.
RepDB's answer:
Solo developers and small teams building fitness or workout-tracking apps (iOS, Android, web) who need licensed exercise images and structured exercise data, but don't want to build their own media pipeline or depend on a rate-limited third-party API.
Based on our record, Moralis seems to be more popular. It has been mentiond 31 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Moralis processes over 50 billion API calls annually and offers a free tier with 40,000 compute units per day. The Streams API enables webhook-based event monitoring, allowing agents to react to on-chain events in real time rather than polling. - Source: dev.to / 4 months ago
Moralis API Key: Sign up at Moralis to get your free API key. - Source: dev.to / over 1 year ago
One way to do this is have a node running and triggers a script when an event is sent to the chain. There are ways already built up like https://moralis.io/, but then you can get in to the weeds with things like https://docs.prylabs.network/docs/install/install-with-script. Source: over 2 years ago
OpenZeppelin's site is good once you become more familiar with what it is you're doing, and I would also strongly recommend you sign up for a free account with Alchemy who offer a super generous amount of tools/features for you to use, and they recently started up their Alchemy academy -- it's still on waitlist right now but if you're wanting to get in, shoot me a reply in this thread and I'll hook you up. ... Source: over 3 years ago
An API might be a good option for you, moralis has worked well for me in the past - https://moralis.io. Source: almost 4 years ago
QuikNode.io - Blockchain Infrastructure Cloud
thirdweb - thirdweb is an ecosystem of SDKs, dev tools, and dashboards that help teams build and manage web3 apps. Deploy custom or pre-built contracts to ETH, MATIC, AVAX, & more.
Ethereum - Ethereum is a decentralized platform for applications that run exactly as programmed without any chance of fraud, censorship or third-party interference.
ChainGPT - Unleash the power of Blockchain AI with ChainGPT.
One Click Crypto: AI + DeFi - Your AI-powered DeFi portfolio assistant
Infura - Ethereum node as an API