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What interesting use cases have people come across for the L402 payment protocol that are actually used in production?
I found this list of projects - https://github.com/Fewsats/awesome-L402
Still wondering if it's used in any significant volume in production though.
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Loop would probably be the one with the biggest volume but it is not "fully" leveraging the protocol features.
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167 sats \ 1 reply \ @ajonas 11 Aug
https://chat.bitcoinsearch.xyz/ uses it. I’m not aware of many others that have implemented it.
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Added to awesome-L402!
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I think it's a meme more than it's actually useful
For those that don't know, 402 is an HTTP status code for 'payment required' that's ancient but has never really been used because we've never had internet native money
Lightning Lab's meme'd it into a thing using their macaroon authentication for lnd (and a separate reverse proxy for for the edge)
It would seem obvious with Lightning as internet native payments to finally hermit crab itself into that old http status code... but I think it's an antiquated idea.
Anything interactive is using websockets at this point, not straight http. Even if it did use straight http, you're likely still dealing with another microservice to deliver whatever the purchase authenticated... is a re-arch of that worthwhile just to use these macaroons when you're probably achieving the same thing with a webhook/jwt etc?
Not to mention the clients, there's no native client for it in any browser or anything, so you're going to emulate a websocket in javascript in your front end anyway.
It's just not as exciting as people want it to be... Native internet payments are exciting, not http status codes...
Go unlock a video at Lightning.Video and tell me how http and macaroons would make that better for anyone?
This isn't even getting into the rabbit hole of Nostr static payment codes (soon:tm)
Am I wrong Jordi? @fewsats
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You mention Lightning Labs and LND, but for completeness and to mention real production use cases:
Their L402 proxy, Aperture, has been used in front of their Loop and Pool services for years. The client for each of those managed the service-specific macaroons.
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Didn't know they used it in loop but that makes sense as that also has its own client in litd
Ironically that's not even a web service 🤣
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Yeah it’s not built into any general web clients to my knowledge, so you need a custom client, but it has been used in production since 2020.
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563 sats \ 1 reply \ @fewsats 11 Aug
I think it's a meme more than it's actually useful
No no, we are serious! Check out https://L402.org
is a re-arch of that worthwhile just to use these macaroons
The answer is NO and that's why we are not seeing it happen.
Not to mention the clients
BIG chicken and egg problem. The only way around seems to be to actually focus on a niche and let people know "this is our official client but you can build your own". Data applications (a Bloomberg like terminal that can add third party sources with a standard protocol for data, visualizations and payments) may be the killer app to start growing the ecosystem... but it still remains be seen.
Go unlock a video at Lightning.Video and tell me how http and macaroons would make that better for anyone?
You are a bit off here though. You are thinking "people who want to consume my videos can go to my platform and watch them". If you paywall them using the L402 standard, people in MY PAGE (or any other) can watch your videos while you get paid.
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people in MY PAGE (or any other)
Yea protocolization is definitely better than not... but this is where nostr (sockets) are going too...
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Thank you for clarifying. I had no idea what he was referring to.
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785 sats \ 3 replies \ @k00b 11 Aug
I know @bumi and @Alby have done a lot of work with it. @cascdr uses it.
Today at least, it seems most useful if you expect 3rd parties want programmatic access to a paywalled http resource or anticipate consumers will access the resource in a context that's L402-aware. While it still makes sense, it makes a little less sense where the application has accounts and other forms of authentication afaict.
For our paid stuff when it's paid non-custodially, we have a bespoke flow through graphql. We could use L402 for these but I prefer to build initial things to meet UX requirements rather than interoperability ones, and good UX demands a large degree of awareness/statefulness. I can imagine us moving to using L402 when we understand everything we'll accomplish with payments and want a more generic abstraction.
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241 sats \ 0 replies \ @cascdr 11 Aug
Technically we do not use L402 but we use something very akin to it in terms of spirit. Our issue has been that it can be a bit bloated for our requirements. Like @k00b we are focused on the UX first and most likely will cut over once adoption/interoperability/maturity considerations are there.
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Interesting - would be really curious about the architecture of Stacker News non-custodial payment flow. Is it documented anywhere?
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361 sats \ 0 replies \ @k00b 11 Aug
The graphql mutations return these types which contain invoices, payment state, and the results of the paywalled mutations.
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APIs for AI agents: L402 enables AI agents to seamlessly pay for and access API services and data sources. This is an exciting paradigm shift where autonomous AI software will be the main consumers of the internet economy.
Monetization of Open-source Software: L402 enables the distribution of API access without sharing API keys or personal information. This is specially suitable for the monetization open-source software projects on a usage basis. Clients can freely pay for their own service in an anonymous, self-hosted manner.
Pay-per-usage Models: say goodbye to costly subscriptions. L402 enables flexible payment schemes such as pay-per-use, time-limited sessions (access for a couple of minutes!) and automated credit pools.
These are what I found while searching. I don't know anything by myself. I'm not a dev.
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I don’t know of A single one
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The L402 payment protocol has been in production use for several years at Lightning Labs.
At Fewsats, we've explored various applications of L402 like wrapping storage/compute as a service. We've found that one of the most promising areas for L402 is in providing Data APIs though.
I think the protocol shows particular promise for AI applications, especially in agent environments but it's worth noting that we're still in the early stages of exploring these use cases.
Long story short, I would say that while L402 is production-ready, there hasn't yet been a "killer app" built on it.
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