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Questions tagged [exchange-api]

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2answers
44 views

How to post to the blockchain without a third party API like infura

I have been using web3 nodejs and infura.io to build apps that interact w/ the Ethereum Blockchain and it is all great but I don't like the idea of a failure point my my apps because they rely on a ...
0
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1answer
80 views

Is there any working provider for Ethereum Classic APIs?

Provider used for Ethereum is Infura, but there is no any provider for Ethereum Classic. Previously tested Ethercluster endpoint to access APIs for Ethereum Classic, not able to connect with Kotti ...
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0answers
9 views

What are the steps I have to perform to make a transaction using for ETC using Kotti Testnet geth JSON RPC APIs?

I've founded API resource from Resource, and from that resource I've got This reference, which redirected me to all those JSON RPC methods and localhost geth port and its setup. What should I have ...
0
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1answer
36 views

Is there any API to create Addresss and wallet as well as make transfer for ETC (Ethereum Classic)?

There is balance checking, transaction list and transaction receipt getting APIs available for Ethereum Classic (ETC)? Is ETC coin is only available on Ethereum Classic or its listed block explorer ...
0
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1answer
17 views

How can I find the block where a user enacted a certain event on a contract?

I'm trying to build a web3.py program to take in a given user's address, and return the amount of ETH traded since they added liquidity to a Uniswap exchange. Uniswap is a smart contract on the ...
0
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1answer
29 views

Any QuickBlocks tutorial?

From my understanding QuickBlocks is an api in C++ that provides similar services as etherscan API for the ethereum blockchain. Is there a link or tutorial to use quickkblocks because the example in ...
0
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0answers
19 views

Is there any API for contract deploy in ropstan testnet? [duplicate]

To deploy contract through API on ropsten is there any API?
1
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1answer
937 views

etherscan request API limit [closed]

i want to know the limit request on etherscan API with API key, and limit if we go on paid service. thanks in advance.
1
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1answer
291 views

What determines the price of the ERC-20 token on a trading exchange?

I know that ERC-20 tokens are traded in pairs on the trading exchanges, but what essentially determines the price in USD? I would like to know if there's a specific algorithm that does the calculation....
1
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1answer
85 views

API or websocket

I am trying to develop an crypto traking site like coinmarketcap, for market data I am using exchanges API. but I am little bit confuse whether i should use api or websocket? as i don't have much ...
1
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0answers
16 views

API of EtherEx, give an example

Please give an example how to use EtherEx API from both JavaScript and Python programs. Where should I connect before sending a method call? I am especially interested in add_market method.
0
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2answers
1k views

What are the popular API to get current exchange rates for Ethereum to USD

Can you please list all the API providers for cryptocurrency to USD Thanks in advance.
2
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1answer
149 views

Ether exchange for mobile app users

I am working on an ethereum powered mobile app and want to know the best to way to integrate an exchange for new users who do not have an existing accounts to purchase ether? What's the best way for ...
1
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1answer
1k views

Trading with smart contract

I am writing a smart contract as a fund for me and some friends to invest ETH in, allowing for investment proposals to be submitted and voted on. For example, 10 people each put in between 1 and 10 ...
5
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2answers
817 views

Is there an API which allows to download source code of contracts?

I am doing research into the security of smart contracts and was hoping to gather a dataset containing smart contract source codes. I was wondering if there is an API which allows this. At etherscan ...
0
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1answer
359 views

How to retrieve difficulty via api

Im trying to retrieve the current difficulty value via api and parse the value only using JQ. In this example it is etherchains api. Currently my output is curl 'https://etherchain.org/api/...
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1answer
324 views

Did I actually just win 1 Ethereum? Is it truly mine?

I was looking for coins to mine & exchange for bitcoins when I found out about Ethereum. I have literally no knowledge about it or anything at all. I went for a site (https://freeeth.me/) to win ...
1
vote
1answer
992 views

How do you track total supply of a currency (smart contract) on the Ethereum blockchain?

For a newly created crypto currency based on the Ethereum blockchain, how can the creator and the public in general track the current total supply of the coin, provided he enables mining new coins on ...
2
votes
1answer
871 views

Gemini API Read Response / Content?

So I'm trying to test an authenticated response from Gemini. I get a "response", but not what I expect... it comes back as an html string, not "an array of balances" like the API suggests I should get....