Questions tagged [api]

Application Programming Interface

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1answer
45 views

Get a list of top asset hodlers for a specific asset

I'm using the Blockfrost API to get a list of the top holders of an asset. ie. The people with the highest quantity of this asset in their wallet. I'm using Blockfrost's API, and the specific call I'm ...
0
votes
1answer
81 views

How to obtain PubKeyHash from Address ShelleyAddr

Is there a way to do this programmatically? I have an Address ShelleyAddr obtained from deserialiseFromBech32 AsShelleyAddress and need its Plutus.V1.Ledger.Crypto.PubKeyHash
2
votes
1answer
63 views

Are there any APIs for Cardano NFT ticker?

I am very new to Cardano NFT. I am trying to find an API to get the Cardano NFT live ticker. Please help me.
6
votes
5answers
355 views

How can you listen to all incoming transactions of a wallet address?

For a web app, I'm wondering is there an API/SDK that enables you to execute some code every time an address receives ADA, NFT, or native token? The wallet address receiving does not change. If not, ...
2
votes
1answer
44 views

How to create and sign a transaction on a mobile device?

I would like to create a simple mobile application (iOS) that would create and sign a transaction and submit it through an API like Blockfrost to the network. Preferably that transaction would ...
5
votes
1answer
98 views

Nami wallet showing getBalance returning a NaN

Hi i just recently started working with Nami Wallet to be implementes in a web app, but when im trying to get my wallet balance: window.cardano.getBalance().then(res => console.log(res)) its ...
1
vote
0answers
22 views

Cardano Data for Data Analytics and Data Visualisation

Where can I get Cardano raw data or formatted data (e.g. no. of wallets, ADA price, etc) that I can use for data science, analytics and visualisation?
5
votes
2answers
139 views

How to get all NFTs of a wallet address?

I'm trying to retrieve all assets which are located at the specific wallet address, I queried through the docs but couldn't find anything suitable. Can anybody provide me some help regarding this ...
4
votes
1answer
137 views

Blockfrost, GrapgQL or any API for cardano help, working with javascript

I am building an MERN stack app cardano dex tool, I want to use Blockfrost. I have installed the SDK in Node.js backend, but there are only very few examples on how to get any kind of data from it. ...
7
votes
2answers
190 views

Storing Secrets in Smart Contracts

I was wondering if there was an ability to store secrets, such as an API credential within a smart contract. When the contract gets executed it checks something remote. Maybe a weird example, but for ...
4
votes
1answer
54 views

I couldn't find the requested endpoint

When I try to construct a transaction by following the Cardano Wallet Backend API (v2021-06-11) (Transaction New section) by writing this code in TypeScript: const resp: Response = await fetch(`http://...
4
votes
1answer
77 views

Between the cardano-graphql and cardano-rosetta APIs, which one is recommended for apps and dapps integration?

From what I understand, cardano-graphql as well as cardano-rosetta APIs enable interaction with the Cardano blockchain. Which of these is recommended for developing apps/dapps that interact with ...
2
votes
1answer
146 views

Daedalus wallet recovery phrase to Cardano Wallet Backend mnemonic sentence + mnemonic second factor

Daedalus wallet recovery phrase is 24 words. Cardano Wallet Backend mnemonic sentence is 15 words and mnemonic second factor is 9 words, adding up to 24 words. I tried restoring a wallet through ...
3
votes
2answers
196 views

Is there an API or website where I can see all addresses that hold a specific native token/asset?

I want to get all addresses that hold a specific native asset/token. I'm not talking about NFTs but tokens that have a quantity of more than one. Examples would be the spacecoins or the hosks. I want ...
6
votes
1answer
63 views

Are there any Java APIs allowing to make applications on top of Cardano?

cf. title of the question, is there a Java API to make Cardano developers ?
2
votes
1answer
191 views

Blockfrost API and IPFS issues

Right now I have some NFTs to pin on the blockfrost IPFS. That way I don't need to run the node 24h a day. But for some reason the API returns an error when I try to add new assets. I'm using a free ...
2
votes
1answer
225 views

Blockfrost assets api issues

We are developing an app that must get the asset id and get its details from metadata, right now we are using blockfrost.io. It works very good for policy Id's, we can use the pool.pm website and get ...
4
votes
2answers
313 views

How can i generate new wallet address using cardano-wallet cli and cardano wallet api after created my wallet?

yoroi and daedalus provide UI to generate new wallet address, how can i use cardano-wallet cli and cardano rest api to generate new address?
9
votes
1answer
70 views

Are there any API's I can integrate with to accept Cardano as a merchant?

I run a small tourism startup and I'm looking for an API I can integrate with to accept Cardano on our website. Does anything like this exist? Sadly, neither Coinbase Commerce nor Bitpay are currently ...
27
votes
3answers
447 views

How can a developer access the Cardano network?

As a developer building an application, what are different way to access the Cardano network?