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Solana (SOL) API - Building Your Web3 Dapps



May 2, 2024

6 min read

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What is Solana (SOL) API?

Solana API refers to the set of tools, protocols, and interfaces that developers can use to interact with the blockchain network. This API provides developers with the means to build applications, execute transactions, and access data stored on the ledger.

One key component of the Solana API is the Remote Procedure Call (RPC) interface that allows developers to communicate with the network without the need to set up the dedicated node software.

This RPC API is exposed by existing nodes on the network maintained by users or third-party providers. It offers a standardized set of methods and protocols that developers can utilize to communicate with SOL nodes programmatically.

Through this API, developers can send commands to RPC nodes, such as querying data, managing wallets, and processing transactions.

As a result, developers gain access to a vast array of functionalities offered by Solana's infrastructure and can build a diverse range of products and services that leverage the unique features of this blockchain.

In summary, Solana's API simplifies the process of interacting with the decentralized network, facilitating developers in deploying programs and applications without the overhead of setting up and maintaining their own nodes.

Why use a Solana (SOL) API?

In traditional blockchain networks, developers often have to run separate nodes to interact with any given network, which can be resource-intensive. However, with the RPC interface, developers can bypass this requirement and immediately interact with the network using simple API calls.

These will include all types of interaction with Solana allowing the following activities:

  • Read Data: Retrieve information stored on the blockchain programmatically, accessing data such as transaction history, account balances, block details, and other relevant information;
  • Broadcast Data: Transmit data to the network, submit new transactions, interact with programs, or propagate other types of data;
  • Build Applications: Create software that interacts with the blockchain, capable of both reading from and writing to the ledger autonomously.

In essence, Solana's RPC interface streamlines the development process by providing developers with a straightforward method to interact with the blockchain network, enabling them to focus more on building their applications rather than managing node setups. This ease of access encourages broader participation from developers and fosters innovation within the ecosystem.

Key Features of Solana API

APIs exposed by RPC nodes in the context of cryptocurrency networks like Solana support a wide range of operations, catering to various needs of developers building applications on the blockchain. These operations can generally be categorized into four main groups:

Key Features Description Example Use Cases
Real-time blockchain data Facilitates real-time synchronization with the latest blockchain state, enabling direct retrieval of transaction/account details, block/network statistics Blockchain explorers, Real-time analytics, Trading platforms
Wallet management Includes functionalities like generating new addresses, checking balances, sending and receiving funds, and handling transaction history Payment gateways, Exchange platforms
Transaction processing Facilitates transaction creation, signing, fee estimation, and broadcasting for network confirmation DeFi platforms, Wallet applications
Address validation Helps verify address validity to ensure compliance with blockchain network standards before transaction processing Web3 wallets, Exchanges, Payment platforms

By offering comprehensive support for these use cases, RPC nodes provide developers with the tools they need to create advanced apps that use the full power of the blockchain network.

How to Get Started with Solana (SOL) API

GetBlock makes accessing Solana's infrastructure easy and available to developers of all levels. Users can quickly start using the services to build applications by following three simple steps.


The first step is to sign up on the GetBlock platform. This involves creating an account with a MetaMask wallet or an email address by setting up a password.

Upon signing up, all users are granted 40,000 free daily requests, commonly suitable for personal use or application testing. Other tariffs and plans will be outlined further.

Acquiring an Endpoint

For the next step, proceed to the widget on the account dashboard to generate an endpoint – a URL that developers use to connect to the Solana infrastructure provided by GetBlock. Users can then copy and use this URL in their code.


Integrating Solana API

To show an example of using the obtained endpoint, let's perform a POST request to the GetBlock API, querying the balance of a SOL account ("BSfyn7CncEtBfdjJcXUoPMEcgsRKKZmua9yRr3LUXrvq") on the mainnet.

curl --location --request POST '' \
--header 'Content-Type: application/json' \
--data-raw '{
  "jsonrpc": "2.0",
  "method": "getBalance",
  "params": ["BSfyn7CncEtBfdjJcXUoPMEcgsRKKZmua9yRr3LUXrvq"],
  "id": ""

The result object contains current slot and the account balance in lamports:

  "jsonrpc": "2.0",
  "id": "",
  "result": {
    "context": {
      "apiVersion": "1.17.26",
      "slot": 255044322
    "value": 17017712164

Available Solana API Methods

The following list outlines the most frequently utilized methods in addition to getBalance method, accessible via the JSON-RPC protocol.

  • getAccountInfo: Retrieves detailed information associated with an account, including its balance, space utilization, and whether it is executable;
  • getLargestAccounts: Prints the list of top-20 accounts by balances in lamports;
  • getBlock: Provides comprehensive information about a specific block;
  • getTransaction: Returns information about the transaction by its signature;
  • sendTransaction: Submits signed transactions to the blockchain network for processing.

The GetBlock documentation covers these and other supported methods with detailed explanations and examples of how to use them in code.

Pricing and Plans for Solana (SOL) API

GetBlock ensures that there is a suitable plan available for every use case, whether it's for hobbyist developers, startups, enterprises, or large-scale projects.

One popular plan is “shared” infrastructure where the resources of a single node are used by multiple clients. Pricing options include:

  • Free tariff with limited requests;
  • Request packages with higher rates;
  • Unlimited access at a fixed monthly fee regardless of the volume of requests.

This option is beneficial for individuals or small-scale projects looking to explore the platform's capabilities or start with limited resources.

Dedicated SOL API

As applications grow in popularity and usage, developers may need to consider scaling options to accommodate increased demand for API calls. For this case, GetBlock deploys private nodes that feature:

  • No limitations on rates and requests;
  • Flexibility in choosing interfaces;
  • Access to historical blockchain data;
  • Tailored node setup.

This plan ensures that applications can scale seamlessly as they attract more users and require more resources.

Enterprise SOL solutions

For large-scale businesses or applications that require extra resources and features beyond what standard packages provide, ​​GetBlock offers specialized solutions.


With this plan, clients benefit from advanced analytical and performance optimization tools, priority support, and flexibility in deploying nodes outside the scope of listed protocols.

In summary, Enterprise API guarantees the best service for growing businesses.


  • How do I access Solana API?

  • What types of data are accessible via SOL API?

  • Can I use Solana API to send transactions?

  • How can I integrate Solana (SOL) API into my application?

  • What are the rate limits for Solana API requests?



May 2, 2024

6 min read