What Is The Blockdaemon API?


What is the Blockdaemon API?

The Blockdaemon data API is a universal read-only API for supporting exchanges, wallets and data companies with full nodes + data. In the initial rollout it will be available in REST and Streaming for Stellar, XRP, Ethereum and BTC full nodes.

A bit about Blockdaemon  nodes API interaction;

Some Blockdamon nodes have their own APIs available natively as part of the client (e.g. Geth's JSON RPC, or the Horizon add on for stellar core has its own rest API). Those are part of the node product itself, and if you run the node those exist

The Blockdaemon Data API is not tied to any notion of node ownership as it's multi-protocol (as are a large number of APIs). It is priced and sold on the basis of the number of calls you can make in a month and how fast you require the transactions to happen.

The data API (v1) is a standardized way to access multiple blockchains' data, so, for instance, you'll have one syntax for retrieving data from stellar, Ethereum, BTC, or XRP.

Thee Data API is also non-transactional, so if you want to create a transaction to send someone 5 BTC, you can't do that through the Data API, you'd have to do that with a node.

Of note:

If you buy a Blockdaemon node, we'll give you a certain amount of credits to try the Data API for free to see if it fits your needs.  You can't beat free. Give it a try.  You can use it to connect to any supported chain, execute queries and if it works for your needs but you need more calls than the free version provides, buy a new Data API plan = more calls than the initial credit. 


  • Standard API commands and data structures regardless of protocol

  • High-performance access to historic data

    • Transactions, wallets, addresses

    • Contract & token data

  • Up to the moment access to pending events

    • Txpool/mempool pending transactions

    • Smart contract event

    • Live blocks

  • On Premise Deploy

  • Streaming Data

  • Block Explorer Integration


There are four tiered levels* depending on how many calls you estimate you will need on a monthly basis.  You'll be able to switch subscription levels at any time if your business needs change.

*coming soon in v2.  the initial release is the API token only.


Further reading

Getting the API for your organization

Using the API

Creating new API token keys

Question? Talk to support

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