gRPC vs RPC in Blockchain Infrastructure

Kevin Dwyer

Kevin Dwyer

April 29, 2024

4 min read


As blockchain technology continues to evolve, the choice of communication protocols plays a crucial role in determining the efficiency, security, and scalability of blockchain infrastructure. In this article, we dive into the comparison between gRPC and RPC (Remote Procedure Call) in the context of blockchain networks, exploring their functionalities, compatibility features, security implications, and best practices for implementation.

A Brief Explanation of Communication Protocols in Blockchain

Communication protocols serve as the backbone of interactions within blockchain networks, facilitating the seamless exchange of data and instructions among nodes. These protocols define the rules and standards for communication, ensuring interoperability and reliability across distributed systems.

How RPC Powers Blockchain Interactions

RPC, or Remote Procedure Call, is a communication protocol commonly used in blockchain networks to enable nodes to request and execute procedures or functions on remote servers. RPC facilitates direct communication between nodes, allowing for the invocation of methods and retrieval of data across the network.

In the realm of blockchain, RPC is instrumental in enabling nodes to interact with the blockchain network, submitting transactions, querying blockchain data, and executing smart contracts. Traditional RPC implementations, such as JSON-RPC (JavaScript Object Notation Remote Procedure Call), have been widely adopted in blockchain infrastructures for their simplicity and ease of integration.

gRPC in Blockchain Infrastructure

gRPC, a high-performance, open-source RPC framework developed by Google, is revolutionizing communication in blockchain networks. Unlike traditional RPC protocols, gRPC leverages HTTP/2 as its underlying transport protocol, offering features such as multiplexing, flow control, and header compression, which enhance performance and scalability.

gRPC's support for protocol buffers, a language-agnostic serialization format, enables efficient and platform-independent communication between nodes. With its built-in support for bidirectional streaming and asynchronous communication, gRPC facilitates real-time interactions and efficient data exchange in blockchain applications.


When comparing gRPC vs RPC in the context of blockchain infrastructure, several factors come into play, including performance, scalability, compatibility, and security. Compatibility Features of gRPC and RPC Both gRPC and RPC offer compatibility features that cater to the diverse requirements of blockchain projects. While traditional RPC protocols like JSON-RPC are widely supported across various blockchain platforms, gRPC's adoption is growing rapidly due to its performance advantages and modern features.

gRPC and RPC in the Blockchain Security Landscape

Security is paramount in blockchain networks, and the choice of communication protocol can significantly impact the overall security posture of the ecosystem. While RPC implementations may pose security risks such as unauthorized access and injection attacks, gRPC offers built-in support for transport security mechanisms such as TLS (Transport Layer Security), ensuring secure communication between nodes.

Implementing Best Practices: gRPC and RPC in Blockchain Projects

Incorporating best practices is essential for the successful integration of gRPC and RPC in blockchain projects. This includes implementing transport layer security, enforcing authentication and authorization mechanisms, and conducting thorough security audits to identify and mitigate potential vulnerabilities.

How to Choose the Right Protocol

When selecting between gRPC and RPC for blockchain infrastructure, it's essential to consider factors such as performance requirements, compatibility with existing systems, security considerations, and the specific use case of the blockchain project. Conducting a comprehensive evaluation and benchmarking of both protocols can aid in making an informed decision that aligns with the project's objectives and technical requirements.

In conclusion, the choice between gRPC and RPC in blockchain infrastructure depends on various factors, including performance, scalability, compatibility, security, and project-specific requirements. By understanding the functionalities, compatibility features, security implications, and best practices associated with each protocol, blockchain enthusiasts can make informed decisions to optimize their blockchain infrastructure for efficiency, reliability, and security.

Why use Ankr's RPC?

When considering the choice between Ankr's RPC and gRPC for blockchain infrastructure, several factors make Ankr's RPC a preferred option. Ankr's RPC not only offers seamless integration with Ankr's comprehensive blockchain infrastructure platform but also prioritizes user experience by providing a user-friendly interface and extensive support services. Additionally, Ankr's RPC stands out for its dedicated focus on the blockchain community, offering tailored solutions and personalized support to address the specific needs and challenges of blockchain enthusiasts. By choosing Ankr's RPC, users benefit from a holistic approach to blockchain infrastructure management, backed by a team of experts committed to driving innovation and empowering users to realize their blockchain applications.

Read these other three articles and further increase your knowledge of blockchain infrastructure.