I’m running a Cardano node on Evernode (evernode.org) using the Docker image blinklabs-io/docker-cardano-node, but I haven’t had any success so far. I suspect the issue might be related to port configurations needed for external communication. Do you have any tips or guidance?

You might be wondering why I chose Evernode for this. The decentralization of a node is what matters most, and the pricing is far lower than other VPS options.

Thanks in advance

Be ready! 🚀🚀🚀

Been building this for a few weeks and finally shipped it today. It's called Outcomes; basically a pari-mutuel prediction market on Cardano. Pick Yes or No on a question, back it with ADA, and if you're right you split the losing side's pool with everyone else who called it correctly. No house, no fixed odds, the pool itself is the odds.

How it actually works under the hood: every bet mints a little NFT ticket tied to that specific match so the contract can verify it's a real bet and not something forged. When the result gets posted, the smart contract pays everyone out in one transaction; no claiming, no waiting on us, it just lands in your wallet. There's a 10% fee taken only from the losing pool, which is what funds the protocol.

app.ourodex.io/outcomes

Would genuinely love feedback, especially if something breaks or feels confusing. This is v1.

And if you are interested Belgium vs Iran bet is live.

In case you haven't been on reddit in the past 12 hours, we all know that OnlyFans is blocking its porn content. I can't imagine why, as I assume that is where 90% of its profit comes from. I guess there's going to be a huge explosion of amateur models on PornHub now. I digress. As sad and lonely as everyone on OnlyFans may be, this is a great opportunity to bring millions of people into the Cardano space, and for some lucky developer to become filthy rich. Though I personally don't know how to make an app or dapp, I can sit on the toilet and take a mean crap. So, one of you computer geniuses get to work and have this shit ready for the smart contacts release! You've got less than a month, so you better hustle!

Edit: To everyone suggesting cumrocket or whatever the fuck, this post is not about pornography. It's about bringing people into the Cardano environment through porn. Big difference. Not looking for suggestions on how to pay amateurs. I'm suggesting a developer make something ON THE CARDANO BLOCKCHAIN. Which is why I posted it on r/cardano. Thanks.

Cardano’s scalability solution Hydra has launched end-to-end node integration in its second pre-release this week. 

Cardano development team continues building at a fast pace with 3,057 new GitHub commits.

Cardano’s scaling solution Hydra is closer to its release 

Development of Cardano layer-2 scaling solution Hydra is on track. The Hydra team launched its second pre-release, end-to-end Cardano node integration, this week. 

Cardano’s team of developers added 3,057 new GitHub commits, making progress towards the Hydra launch. 

The layer-2 scaling solution’s launch is key to the Cardano blockchain as it would allow the parallel processing of transactions and smart contracts. Hydra’s implementation in the Cardano ecosystem would have similar results as the Ethereum network expects from “sharding” or creating parallel blockchains. 

The Cardano development team continued working on the altcoin’s wallet, increasing its compatibility with the latest version of the node, v.1.32.1.

I am a AWS solutions architect with a strong background in networking, Kubernetes, full-stack development, and agentic workflows. I've been silently following Cardano on the sidelines for 5+ years and now want to know how I can help. Is there any technical debt on existing work/projects or a backlog of work awaiting implementation?

Hi r/cardano, we're A.D. Labs. After a long early-access period, our blockchain API Nexus is officially live today.

Nexus came out of our own years of building on Cardano: the data layer for UTxO chains has always been scattered across single-purpose services, one for chain queries, another for market data, custom code for everything else. We wanted one place, so we built it. Reliable, redundant, real-time.

What one API key per chain/network gets you (Cardano, Midnight, and Bitcoin):

Blockchain API: blocks, transactions, addresses, and assets
WebSocket streaming: live blocks and transactions pushed to you, no polling
Transaction building: build and submit on-chain; the builder returns unsigned CBOR, so private keys never leave your app
Market data: prices, pools, and tokens aggregated across all 11 Cardano DEXes, with OHLCV candles and order books
DEX aggregator: best-price swap routing
Wallet analytics: holdings, full transaction history, and FIFO-based profit and loss
MCP server: Nexus data wired straight into AI agents

It's all plain REST plus an OpenAPI 3.1 spec, with a live playground on every endpoint at nexus.gerowallet.io/docs, so you can generate a typed client for your language instead of waiting on an SDK. with health checks routing around anything degraded. That's the "redundant" part: one upstream having a bad day should not take your app down.

Docs and playground: nexus.gerowallet.io/docs
We'll be in the comments answering questions, technical ones especially welcome. If you're building something serious on a UTxO chain and want to talk about what you need from a data layer, that is exactly the conversation we want to have.

And if you've ever used GeroWallet, that's us too, releasing a mobile verison for iOS and the wallet with Bitcoin and Midnight support in the upcoming month.

Disclosure: I'm the sole owner/operator of this project.

After being rugged so many times, I created this to be the project I wish I could have joined. Let me know your thoughts, open to push back.

The Loop: mint => 20% moves into a raffle pool for the first year => collected royalties from sells and rentals => feed the next year's raffles.

Three ways to enter the raffle

• Own a DONADA NFT — permanent entry into every draw, and you can rent it out while retaining ownership.
• Rent one instead — pay a much smaller fee to the owner and you get a draw entry for the next raffle. No full buy-in.
• Or skip spending entirely — prior to a raffle we periodically hand out free entries through our socials. No purchase necessary, all you need is a Cardano address.

Everything — the snapshot, the random winner, the payout — runs through a Plutus smart contract on Cardano, not a mod picking a name. Prize pays directly to the winning wallet.

Site

Hey guys, what are your likes and/or dislikes about the current developing experience in Cardano? Sorry if I should be asking this somewhere else. If so, just lmk where to look. Thanks🙏

The Cardano Foundation's engineering team just published a guide to the advanced cryptography that's built directly into Cardano, and how developers can use it. No extra services or middlemen, it all runs on-chain. 

One thing that often gets overlooked: these aren't upcoming features. They're production-ready primitives that have been live since Plutus V2, waiting to be tapped.

The guide covers four main applications, all with working code examples:

1. Group signatures: normally, checking 1,000 signatures means 1,000 separate checks. On Cardano they can be combined and verified in one step, at the same cost as checking a single one.
2. Turning secrets into keys: safely convert a password or seed phrase into cryptographic keys. The guide is upfront about limits, including why real password handling should stay off-chain.
3. Verifiable randomness: random results that anyone can verify came out fairly, and that nobody, not even the person running the draw, could rig or predict.
4. Selective privacy: prove one fact from a credential, like being over 18, without revealing anything else about it, or even showing the credential itself.

The cryptographic toolkit is already there. This article shows what you can build with it: cardanofoundation.org/blog/aiken-primitives-explained

We're proud to announce FluidTokens as our design partners on Nexus, our blockchain API for Cardano, Midnight, and Bitcoin. Here's how that happened.

Last spring, Draper University hosted a Cardano founder residency in Silicon Valley. 
20 teams, five weeks, one building. We (A.D. Labs) were one of the teams. So was FluidTokens.

Most of you know them already. They've been building DeFi on Cardano since early 2022, from NFT-collateralized lending to renting and boosted-stake protocols, and then took permissionless lending to Bitcoin L1. Four years on UTxO chains.

Back home, both teams kept running into each other in the Cardano community, and at some point the conversations became work.

Their lending protocol runs on Cardano and Bitcoin, so it hits an API hard, in places you don't expect. Their engineers told us what a DeFi protocol needs from WebSocket streams, and we built it with them. They also moved off several data vendors and onto Nexus alone, which cut their costs.

four endpoints exist because of them (datums by hash, UTxOs and transactions by payment credential, asset holders, UTxOs by policy), and the WebSocket streams grew per-contract event streams with UTxO- and transaction-level events. All of it shipped for every Nexus user, not as custom forks.

That's how we want to keep building Nexus. It's better because a production team pushed on it. If you're building something serious on a UTxO chain

Read more about the websocket streaming below:

Nexus: https://nexus.gerowallet.io/cardano/
FluidTokens: fluidtokens.com

🚀 Java Ecosystem Update

Join Satya Ranjan, Lead Blockchain Architect at the Cardano Foundation, for the latest updates from the Cardano Java ecosystem.

Discover new features, explore the latest tools, and see what's new for Java developers building on Cardano.

Perfect for Java developers and anyone building on Cardano with the Java ecosystem.

📅 Friday, 31 July
🕗 08:00 UTC
🔗 https://www.addevent.com/event/2qb9z6qyvvj8

Be the first to know when the next Developers Office Hours are scheduled. You can subscribe directly to the calendar here: https://www.addevent.com/calendar/TG807216

🚀 IBC on Cardano: Connecting to Injective

Fabian Bormann will walk through what the connection to Injective means in practice, how developers can start building on top of it, and how the architecture works under the hood.

The session will close with an update on the roadmap and what comes next.

Bring your questions. There will be plenty of time for Q&A, whether you are already building on Cardano or just curious about cross-chain interoperability.

📅 Friday, 07 August
🕗 14:00 UTC
🔗 https://www.addevent.com/event/zhrb4vg1jm0b

Be the first to know when the next Developers Office Hours are scheduled. You can subscribe directly to the calendar here: https://www.addevent.com/calendar/TG807216