# Cardano Integration **URL:** https://forum.cardano.org/c/developers/payment-integration/170.md?page=1 [Latest](https://forum.cardano.org/latest.md) · [Categories](https://forum.cardano.org/categories.md) · [Tags](https://forum.cardano.org/tags.md) **Page:** 2 --- ## [Easily Integrate Hydra via Kuber API is now available for our developer ecosystem](https://forum.cardano.org/t/easily-integrate-hydra-via-kuber-api-is-now-available-for-our-developer-ecosystem/148698)
**Author:** [@ron.ada4profit](https://forum.cardano.org/u/ron.ada4profit)\ **Replies:** 0\ **Last updated:** [23 August 2025 14:09 UTC](https://forum.cardano.org/t/easily-integrate-hydra-via-kuber-api-is-now-available-for-our-developer-ecosystem/148698 "2025-08-23T14:09:01Z")
DApp developers can now easily integrate with Hydra via our Kuber API. If you’re a DApp developer and interested in integrating Hydra into your solution, you can try this out via following documentation: We are plann… --- ## [Cardano node APIs](https://forum.cardano.org/t/cardano-node-apis/90944)
**Author:** [@Youssef-Alaa](https://forum.cardano.org/u/Youssef-Alaa)\ **Replies:** 4\ **Last updated:** [19 August 2025 20:25 UTC](https://forum.cardano.org/t/cardano-node-apis/90944 "2025-08-19T20:25:17Z")
Hello, I need to query the Cardano blockchain node to get full data of different blocks and transactions for some analysis, My application would make millions of queries so public APIs are not an option. I need somethin… --- ## [How to Verify Ledger signedMessage with "cardano-serialization-lib" or any other library?](https://forum.cardano.org/t/how-to-verify-ledger-signedmessage-with-cardano-serialization-lib-or-any-other-library/147024)
**Author:** [@Bartosz\_Kurek](https://forum.cardano.org/u/Bartosz_Kurek)\ **Replies:** 0\ **Last updated:** [25 June 2025 19:44 UTC](https://forum.cardano.org/t/how-to-verify-ledger-signedmessage-with-cardano-serialization-lib-or-any-other-library/147024 "2025-06-25T19:44:43Z")
Can I ask for the answer under the question I created on Cardano Stack Exchange portal? I tried for really long time and failed with each approach. I will really appropriate the help. https://cardano.stackexchange.com/… --- ## [Cardano-C Library](https://forum.cardano.org/t/cardano-c-library/140601)
**Author:** [@AngelCastilloB](https://forum.cardano.org/u/AngelCastilloB)\ **Replies:** 5\ **Last updated:** [5 March 2025 19:47 UTC](https://forum.cardano.org/t/cardano-c-library/140601 "2025-03-05T19:47:01Z")
Hello Cardano community, I just wanted to share with you all our recently completed C library for Cardano off-chain code, you can take a look at the project at: This was funded by project Catalyst. It is a pure C99 C … --- ## [Transaction doesn’t go through blockfrost API but goes through the node](https://forum.cardano.org/t/transaction-doesn-t-go-through-blockfrost-api-but-goes-through-the-node/142276)
**Author:** [@thomas\_boisson](https://forum.cardano.org/u/thomas_boisson)\ **Replies:** 1\ **Last updated:** [21 January 2025 18:15 UTC](https://forum.cardano.org/t/transaction-doesn-t-go-through-blockfrost-api-but-goes-through-the-node/142276 "2025-01-21T18:15:09Z")
Hi, A withdrawal of rewards signed transaction didn’t go through blockfrost. Anyone knows how can I do that? The transaction starts like this: “type”: “Witnessed Tx ShelleyEra”, “description”: “Ledger Cddl Format”, … --- ## [What are Mesh plans for 2025? Tooling for: Multisig, Governance, Hydra: L2 scaling, Cardano dapps running smoothly, like web2 apps, Midnight: the Substrate family, Bitcoin: signing txs with your Bitcoin wallet and make Cardano txs](https://forum.cardano.org/t/what-are-mesh-plans-for-2025-tooling-for-multisig-governance-hydra-l2-scaling-cardano-dapps-running-smoothly-like-web2-apps-midnight-the-substrate-family-bitcoin-signing-txs-with-your-bitcoin-wallet-and-make-cardano-txs/139050)
**Author:** [@Sebastian\_Pabon](https://forum.cardano.org/u/Sebastian_Pabon)\ **Replies:** 1\ **Last updated:** [6 December 2024 01:05 UTC](https://forum.cardano.org/t/what-are-mesh-plans-for-2025-tooling-for-multisig-governance-hydra-l2-scaling-cardano-dapps-running-smoothly-like-web2-apps-midnight-the-substrate-family-bitcoin-signing-txs-with-your-bitcoin-wallet-and-make-cardano-txs/139050 "2024-12-06T01:05:39Z")
Clip https://youtu.be/PFBUBcdXOY4?si=55cdzhdMROmX5jlY In the clip (02:40 min): take from our most recent X space. :cook:Want to know what we are cooking for this Catalyst Fund 13 and give us your support to keep th… --- ## [Some dev questions from somebody starting](https://forum.cardano.org/t/some-dev-questions-from-somebody-starting/140226)
**Author:** [@MasterKraft](https://forum.cardano.org/u/MasterKraft)\ **Replies:** 4\ **Last updated:** [5 December 2024 12:12 UTC](https://forum.cardano.org/t/some-dev-questions-from-somebody-starting/140226 "2024-12-05T12:12:07Z")
Are nodes full and archive like in ethereum ? How much space is needed for a full node and archive respectively as of today ? Is there any de-facto library / most well maintained for offchain node querying ? Thanks ! … --- ## [Cardano client Multiplatform Integration on Flutter](https://forum.cardano.org/t/cardano-client-multiplatform-integration-on-flutter/139833)
**Author:** [@vlmoon99](https://forum.cardano.org/u/vlmoon99)\ **Replies:** 0\ **Last updated:** [30 November 2024 18:46 UTC](https://forum.cardano.org/t/cardano-client-multiplatform-integration-on-flutter/139833 "2024-11-30T18:46:10Z")
Hello Cardano developers, I am a software engineer with a strong interest in blockchain technology. In 2023, I started developing a client library called Flutterchain. This library simplifies the integration of blockcha… --- ## [Code name: "Ganache"](https://forum.cardano.org/t/code-name-ganache/137976)
**Author:** [@Sebastian\_Pabon](https://forum.cardano.org/u/Sebastian_Pabon)\ **Replies:** 0\ **Last updated:** [30 October 2024 15:24 UTC](https://forum.cardano.org/t/code-name-ganache/137976 "2024-10-30T15:24:48Z")
Problem : currently, quickly prototype and test applications on Cardano before deploying them to the mainnet is hard. Solution : We will build “Ganache”, a suite of open source tooling that will allow to setting up a… --- ## [Cardano DApp Wallet Connector - demo app and example code](https://forum.cardano.org/t/cardano-dapp-wallet-connector-demo-app-and-example-code/95691)
**Author:** [@dstratio](https://forum.cardano.org/u/dstratio)\ **Replies:** 10\ **Last updated:** [23 October 2024 14:52 UTC](https://forum.cardano.org/t/cardano-dapp-wallet-connector-demo-app-and-example-code/95691 "2024-10-23T14:52:21Z")
Hi, I want to share with you the boilerplate code for connecting DApps to the web wallet and interacting with the blockchain. The link to the git repo is below and a demo is available at this link: What is this useful … --- ## [Assistance to connect to Postgres operated by docker-compose](https://forum.cardano.org/t/assistance-to-connect-to-postgres-operated-by-docker-compose/137646)
**Author:** [@wapowapi](https://forum.cardano.org/u/wapowapi)\ **Replies:** 0\ **Last updated:** [22 October 2024 14:03 UTC](https://forum.cardano.org/t/assistance-to-connect-to-postgres-operated-by-docker-compose/137646 "2024-10-22T14:03:05Z")
Hello, first of all I already saw that this topic was arisen a lot. I have created a node then connected the database, first of all, as I saw in PyCharm, “public” can’t be opened, I tried for more than 3 hours to unders… --- ## [Tired of wrestling with Cardano transaction errors? CQUISITOR is your new secret weapon](https://forum.cardano.org/t/tired-of-wrestling-with-cardano-transaction-errors-cquisitor-is-your-new-secret-weapon/137442)
**Author:** [@Mesh\_SDK](https://forum.cardano.org/u/Mesh_SDK)\ **Replies:** 0\ **Last updated:** [17 October 2024 17:53 UTC](https://forum.cardano.org/t/tired-of-wrestling-with-cardano-transaction-errors-cquisitor-is-your-new-secret-weapon/137442 "2024-10-17T17:53:35Z")
Imagine a world where debugging Cardano transactions is no longer a time-sink, but a streamlined process. That’s the power of CQUISITOR, a cutting-edge web application built with Rust and JavaScript. Here’s how CQUISI… --- ## [Question:What about a DRep team? Answer:MeshJS Multisig platform](https://forum.cardano.org/t/question-what-about-a-drep-team-answer-meshjs-multisig-platform/136273)
**Author:** [@Mesh\_SDK](https://forum.cardano.org/u/Mesh_SDK)\ **Replies:** 0\ **Last updated:** [24 September 2024 16:14 UTC](https://forum.cardano.org/t/question-what-about-a-drep-team-answer-meshjs-multisig-platform/136273 "2024-09-24T16:14:55Z")
Today, as we launch our nomination for the Cardano Summit 2024 Awards in the “Developer and Tooling” category, we’re excited to address a key question: What about a DRep team? And we do it in the best way we know: build… --- ## [Migration from testnet to mainnet](https://forum.cardano.org/t/migration-from-testnet-to-mainnet/135836)
**Author:** [@gutama\_indra](https://forum.cardano.org/u/gutama_indra)\ **Replies:** 0\ **Last updated:** [9 September 2024 09:05 UTC](https://forum.cardano.org/t/migration-from-testnet-to-mainnet/135836 "2024-09-09T09:05:43Z")
Hi, I just finished my app in cardano tesnet chain. i need to take step further to mainnet migration. Any guides or tips about migration to mainnet? all i learned based on this only : Running the node and connecting to … --- ## [The Rise and Growth of Mesh](https://forum.cardano.org/t/the-rise-and-growth-of-mesh/135683)
**Author:** [@Sebastian\_Pabon](https://forum.cardano.org/u/Sebastian_Pabon)\ **Replies:** 0\ **Last updated:** [4 September 2024 16:41 UTC](https://forum.cardano.org/t/the-rise-and-growth-of-mesh/135683 "2024-09-04T16:41:07Z")
Three days ago we released MeshJS v1.7, Chang-ready on mainnet. Its main features: Chang Cost models PlutusV3 General transaction structure changes to fit Conway Embedded datum dRep in Browser Wallet New experimenta… --- ## [What does a Hard Fork imply for Developers?](https://forum.cardano.org/t/what-does-a-hard-fork-imply-for-developers/135410)
**Author:** [@Sebastian\_Pabon](https://forum.cardano.org/u/Sebastian_Pabon)\ **Replies:** 0\ **Last updated:** [28 August 2024 16:07 UTC](https://forum.cardano.org/t/what-does-a-hard-fork-imply-for-developers/135410 "2024-08-28T16:07:29Z")
When a hard fork occurs on the Cardano blockchain, Developers need to take several important steps to ensure their applications and tools remain functional and compatible with the updated network. Here’s what they sho… --- ## [How to build and sign transaction using cardano-js-sdk](https://forum.cardano.org/t/how-to-build-and-sign-transaction-using-cardano-js-sdk/133377)
**Author:** [@tepep75728](https://forum.cardano.org/u/tepep75728)\ **Replies:** 1\ **Last updated:** [24 June 2024 09:56 UTC](https://forum.cardano.org/t/how-to-build-and-sign-transaction-using-cardano-js-sdk/133377 "2024-06-24T09:56:47Z")
Documentation and demo request for using this sdk GitHub - input-output-hk/cardano-js-sdk: JavaScript SDK for interacting with Cardano, providing various key management options, with support for popular hardware wallets … --- ## [Fungible Tokens](https://forum.cardano.org/t/fungible-tokens/131197)
**Author:** [@Andrew16b](https://forum.cardano.org/u/Andrew16b)\ **Replies:** 0\ **Last updated:** [4 May 2024 02:03 UTC](https://forum.cardano.org/t/fungible-tokens/131197 "2024-05-04T02:03:22Z")
Starting a project on the Cardano network to distribute fungible tokens to 5,000 wallets can be a challenging task, especially if you’re not very experienced with blockchain technology. However, here’s a simplified appro… --- ## [Plu-ts Tx API hash calculation Mismatch](https://forum.cardano.org/t/plu-ts-tx-api-hash-calculation-mismatch/131028)
**Author:** [@Rahat](https://forum.cardano.org/u/Rahat)\ **Replies:** 0\ **Last updated:** [30 April 2024 09:37 UTC](https://forum.cardano.org/t/plu-ts-tx-api-hash-calculation-mismatch/131028 "2024-04-30T09:37:37Z")
Incorrect Hash for Tx I have passed all the required data to Tx API and calculated the hash for simple transaction without assets/datum/refScript the Hash returned is correct for transaction with assets/datum/refscript… --- ## [Harmoniclabs pluts how to get tx hash](https://forum.cardano.org/t/harmoniclabs-pluts-how-to-get-tx-hash/130977)
**Author:** [@Rahat](https://forum.cardano.org/u/Rahat)\ **Replies:** 0\ **Last updated:** [29 April 2024 05:47 UTC](https://forum.cardano.org/t/harmoniclabs-pluts-how-to-get-tx-hash/130977 "2024-04-29T05:47:55Z")
Couldn’t get the transaction hash for TX I am using @harmoniclabs/plu-tus & @harmoniclabs/cardano-ledger-ts library to create a TX manually and get hash I successfully created a TX but I am not able to find the hash I s… --- ## [Hash Mismatch for Cardano Serialization Library](https://forum.cardano.org/t/hash-mismatch-for-cardano-serialization-library/130896)
**Author:** [@Rahat](https://forum.cardano.org/u/Rahat)\ **Replies:** 4\ **Last updated:** [27 April 2024 12:44 UTC](https://forum.cardano.org/t/hash-mismatch-for-cardano-serialization-library/130896 "2024-04-27T12:44:04Z")
I have made transaction through Nami wallet here’s transaction id : 612caae48b8123606a0fcbd206dc4deb7d2f434a130e49df0664d23cce45c4a2 I have created same transaction using CSL but I am getting different Hash CODE: impo… --- ## [Cardano-client-lib fail to evaluate Ex units when send the locked fund](https://forum.cardano.org/t/cardano-client-lib-fail-to-evaluate-ex-units-when-send-the-locked-fund/129752)
**Author:** [@monoQ](https://forum.cardano.org/u/monoQ)\ **Replies:** 1\ **Last updated:** [4 April 2024 15:21 UTC](https://forum.cardano.org/t/cardano-client-lib-fail-to-evaluate-ex-units-when-send-the-locked-fund/129752 "2024-04-04T15:21:20Z")
Hello! I was failed to calculate Ex units when try to unlock fund. It throws below error: evalResults = Result{successful=false, response='{"ScriptFailures":{}}', code=500, value=\[\]} First I create a smart contract an… --- ## [How to apply array params to validator?](https://forum.cardano.org/t/how-to-apply-array-params-to-validator/129301)
**Author:** [@Eagering\_Dev](https://forum.cardano.org/u/Eagering_Dev)\ **Replies:** 0\ **Last updated:** [20 March 2024 00:58 UTC](https://forum.cardano.org/t/how-to-apply-array-params-to-validator/129301 "2024-03-20T00:58:53Z")
Hello, everybody. I have a validator which has paramer type of List\ validator (params: List\) { func testscript(redeemer, context) } And when I create a validator and applyparams, I use the belo… --- ## [Tracking JPG Transactions](https://forum.cardano.org/t/tracking-jpg-transactions/129085)
**Author:** [@bepw14](https://forum.cardano.org/u/bepw14)\ **Replies:** 0\ **Last updated:** [16 March 2024 02:14 UTC](https://forum.cardano.org/t/tracking-jpg-transactions/129085 "2024-03-16T02:14:52Z")
Hello, The problem: monitoring the purchases/sales of NFTs from a specific JPG project. What did I do: I used Blockfrost Webhooks with the trigger condition: “policy id equal \ **Author:** [@Nightranger](https://forum.cardano.org/u/Nightranger)\ **Replies:** 0\ **Last updated:** [28 February 2024 02:59 UTC](https://forum.cardano.org/t/new-to-cardano-looking-for-educational-resources/128259 "2024-02-28T02:59:43Z") Hi, Forgive me if this is posted in the wrong area. I’m looking at learning more about Cardano, and the inner workings, I have some experience within development, albeit in Javascript, and generally web based, I’m also … --- ## [How to get verified NFT list?](https://forum.cardano.org/t/how-to-get-verified-nft-list/127956)
**Author:** [@Eagering\_Dev](https://forum.cardano.org/u/Eagering_Dev)\ **Replies:** 2\ **Last updated:** [20 February 2024 11:48 UTC](https://forum.cardano.org/t/how-to-get-verified-nft-list/127956 "2024-02-20T11:48:55Z")
Hello, how are you? I am trying to get the verified NFT list. Just like the Minswap’s verified-tokens Is there any avaliable method for this? Thank you. --- ## [Website integration](https://forum.cardano.org/t/website-integration/126128)
**Author:** [@Element](https://forum.cardano.org/u/Element)\ **Replies:** 0\ **Last updated:** [4 January 2024 08:19 UTC](https://forum.cardano.org/t/website-integration/126128 "2024-01-04T08:19:31Z")
Hey guys! I’m new here sorry if this is not the right place to post this. I am working on a website where useres could deposit and withdrawal Ada without using a 3rd party API and the transaction would be between the bl… --- ## [Scan Website Security Vulnerabilities](https://forum.cardano.org/t/scan-website-security-vulnerabilities/127071)
**Author:** [@dconecrypto](https://forum.cardano.org/u/dconecrypto)\ **Replies:** 3\ **Last updated:** [30 January 2024 14:34 UTC](https://forum.cardano.org/t/scan-website-security-vulnerabilities/127071 "2024-01-30T14:34:33Z")
Application for Cardano members interested in scanning vulnerabilities and malicious code on the $ADA market website. https://forms.gle/ckxPHGLh3v574XEj9 Your website is a part of the Cardano ecosystem. Are you bu… --- ## [Comment écrire et déployer des smart contracts avec Marlowe, de la base à la production](https://forum.cardano.org/t/comment-ecrire-et-deployer-des-smart-contracts-avec-marlowe-de-la-base-a-la-production/126978)
**Author:** [@Uptodate\_Developers](https://forum.cardano.org/u/Uptodate_Developers)\ **Replies:** 0\ **Last updated:** [26 January 2024 14:26 UTC](https://forum.cardano.org/t/comment-ecrire-et-deployer-des-smart-contracts-avec-marlowe-de-la-base-a-la-production/126978 "2024-01-26T14:26:42Z")
Les contrats intelligents (smart contracts) sont devenus un élément essentiel de la technologie blockchain. Ils permettent l’exécution automatique et sécurisée de transactions et d’accords sans avoir à faire confiance… --- ## [How to lock nft but keep that under stake key?](https://forum.cardano.org/t/how-to-lock-nft-but-keep-that-under-stake-key/126576)
**Author:** [@Eagering\_Dev](https://forum.cardano.org/u/Eagering_Dev)\ **Replies:** 4\ **Last updated:** [18 January 2024 02:12 UTC](https://forum.cardano.org/t/how-to-lock-nft-but-keep-that-under-stake-key/126576 "2024-01-18T02:12:20Z")
Hello, everybody. Now, I am trying develop NFT locking system. So when users lock their nft, they can’t spend that nft, but that nft lives under his stake address. How can I implement this? Can anybody help me? Than… [Previous page](https://forum.cardano.org/c/developers/payment-integration/170.md) [Next page](https://forum.cardano.org/c/developers/payment-integration/170.md?page=2)