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ic-wall
The Wall is a crossover Ethereum/Internet Computer demo app. Use Metamask to login to Internet Computer. Then, write on the wall! ∞
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
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internet-identity
Discontinued Internet Identity, the Single Sign On service for the Internet Computer (by AstroxNetwork)
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agent-rs
A collection of libraries and tools for building software around the Internet Computer, in Rust.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
There are other examples as well, for instance, a developer integrating Internet Identity with metamask here -https://github.com/kristoferlund/ic-wall.
What do you define as calling out? There are limitations of course since things have to undergo consensus, but in general, anything can call in to the IC, and that can be leveraged to build many different types of applications that fetch data from the IC. Soon things will become more interoperable with the ability for webhooks and such to trigger updates as well (https://github.com/dfinity/agent-rs/pull/195), note this can be done today actually, but this just makes it easy for anyone to leverage). With this, things like creating a telegram bot, accepting trad. payments via API, etc. all become possible. There are also Oracle frameworks available for those that need them - https://github.com/hyplabs/dfinity-oracle-framework
Good question, they are building it right here: https://github.com/AstroxNetwork/internet-identity. Using Internet Identity as a base, I believe they aim to expand the options that a user can auth with. Medium post here - https://astrox.medium.com/astrox-network-building-web3-identity-service-for-8-billion-users-8cbc8ebae78b.
What do you define as calling out? There are limitations of course since things have to undergo consensus, but in general, anything can call in to the IC, and that can be leveraged to build many different types of applications that fetch data from the IC. Soon things will become more interoperable with the ability for webhooks and such to trigger updates as well (https://github.com/dfinity/agent-rs/pull/195), note this can be done today actually, but this just makes it easy for anyone to leverage). With this, things like creating a telegram bot, accepting trad. payments via API, etc. all become possible. There are also Oracle frameworks available for those that need them - https://github.com/hyplabs/dfinity-oracle-framework
This is likely going to be my last response on this thread since I've been spending a lot of time on these responses, and I have quite some work to do in helping deliver on this. Much of this knowledge can be gleaned from immersing yourself in general cryptoverse and/or distributed systems technology. For instance, an Oracle is a service that allows blockchains to call to external APIs. This is why https://chain.link/ is a thing. I have no doubt someone will create such a service for the IC, or there will be native APIs for it sooner or later, solving the interop problem.