What gRPC does

gRPC is an open source, high-performance Remote Procedure Call (RPC) framework originally developed at Google and now stewarded as a Cloud Native Computing Foundation (CNCF) incubation project. The framework uses HTTP/2 as its transport layer and Protocol Buffers as its interface definition language and serialization format, enabling strongly-typed, language-agnostic service-to-service communication with bi-directional streaming, pluggable authentication, load balancing, distributed tracing, and health checking. It provides officially maintained SDKs for thirteen or more programming languages (C++, Java, Python, Go, Ruby, C#, Node.js, Dart, Objective-C, PHP, Kotlin, Rust, and Swift) plus Android and Web platforms, and is used by named enterprises including Netflix (load balancing via Ribbon), Square (internal microservices), Cockroach Labs (distributed database node communication), Cisco (OpenConfig network automation), and Juniper Networks (Junos Telemetry Interface).

The framework's product surface has expanded beyond core RPC into observability and operations tooling, including an official OpenTelemetry Metrics plugin (covering per-call, per-attempt, retry, and load-balancing-policy instruments across C++, Go, Java, and Python), a Channelz debugging API, standardized Health Checking (grpc/health/v1) with unary Check and streaming Watch RPCs, and Server Reflection for dynamic service discovery by tools such as grpcurl and Postman. Additional reliability features include configurable retry policies with exponential backoff and retry throttling, request hedging, and automatic deadline propagation across service calls.

gRPC has no commercial revenue model. It is released under the Apache License 2.0 and distributed free of charge via GitHub and language package managers (pip, Maven Central, npm, crates.io, etc.). The project is community-led, governed under CNCF, with no venture capital backing, no shareholders, and no traditional ownership structure; copyright is held by the "gRPC Authors." Adoption occurs through self-service developer downloads, an annual developer conference (gRPConf), documentation, and GitHub community engagement. Any economic value generated by the ecosystem accrues to third parties — cloud providers, managed-service vendors, and consultancies — rather than to gRPC itself.

Name

gRPC

Website

https://grpc.io

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1–10 employees

Short description

gRPC is an open source, high-performance RPC framework, stewarded under CNCF, that uses HTTP/2 transport and Protocol Buffers serialization to connect polyglot microservices across data centers, with SDKs in 13+ languages. It is community-led, free under Apache 2.0, and used by enterprises such as Netflix, Square, Cisco, Juniper, and Cockroach Labs.

Ownership category

akta.pro rank

Product category

RPC Framework

NAICS

Computer Systems Design and Related Services (5415), Computer Systems Design and Related Services (54151), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

GraphQL, gRPC & Modern API Protocols (BPAMAOAK)

Keywords

• Remote procedure call framework
• Protocol buffer serialization
• HTTP/2 RPC transport
• Polyglot microservices communication
• Cloud-native RPC framework

Headquarters

HQ city

Seattle

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Open Source Framework (No Direct Revenue): gRPC is a fully open source project maintained under the Cloud Native Computing Foundation (CNCF). There is no commercial revenue model — the project is free to use under the Apache License 2.0. Revenue for the broader ecosystem (e.g., managed services, consulting, cloud provider integrations) flows to third-party companies rather than to gRPC itself.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

gRPC is a modern open source high-performance Remote Procedure Call (RPC) framework that runs in any environment. It efficiently connects services in and across data centers using HTTP/2 for transport and Protocol Buffers for service definition and data serialization, with pluggable support for load balancing, tracing, health checking, and authentication. The framework is applicable to last-mile distributed computing to connect devices, mobile applications, and browsers to backend services, and is officially released under Apache License 2.0 with SDKs for 13+ programming languages.

Product overview

gRPC is a modern open source high performance universal RPC framework maintained as a CNCF incubation project. The core framework uses HTTP/2 for transport and Protocol Buffers for service definition and data serialization. It provides official language SDKs for 13 programming languages (Python, Rust, Java, C++, Go, Ruby, PHP, Node.js, C#, Dart, Kotlin, Swift, Objective-C), with each offering generated client and server stubs from .proto definitions. The ecosystem includes observability through OpenTelemetry Metrics integration, reflection for dynamic service discovery, health checking for service monitoring, and admin/debugging services (Channelz, CSDS) accessible via the grpcdebug CLI tool. Key enterprise features include load balancing (pick_first, round_robin, custom policies), retry and hedging policies, deadline propagation, flow control, compression, interceptors, and service configuration.

Differentiator

Problem solved

Functional benefit

Products and services

• gRPC Core Framework The foundational open source Remote Procedure Call framework providing universal, high-performance service-to-service communication using HTTP/2 transport and Protocol Buffers serialization, with pluggable support for load balancing, tracing, health checking, and authentication. Designed for software developers and platform engineers building distributed systems and microservices across any environment.
• gRPC Language SDKs Official language-specific implementations of the gRPC framework distributed as separate installable packages for C++, Java, Python, Go, Ruby, C#, Node.js, Dart, Objective-C, PHP, Kotlin, Rust, Swift, and Web. Each SDK provides automatically generated idiomatic client and server stubs from .proto service definitions, enabling polyglot microservices development.

Quantifiable outcome

• Scale to millions of RPCs per second with pluggable load balancing and tracing support
• +1 more outcomes

Named customers5 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability2 records

Feature8 records

Partnerships

One partnership is on record.

• Cloud Native Computing Foundation (CNCF)coreStrategic or Co-development PartnergRPC is a CNCF incubation project. The Cloud Native Computing Foundation (CNCF) provides governance, infrastructure, and ecosystem support for the gRPC project. CNCF is a part of the Linux Foundation and hosts gRPC alongside other cloud-native technologies like Kubernetes, Prometheus, and Envoy.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Others

• Confluent:
• HashiCorp: HashiCorp builds open source cloud infrastructure tooling (Consul, Nomad, Vault) under a foundation-friendly model similar to gRPC. While not a direct protocol competitor, it shares the CNCF-adjacent open source infrastructure ecosystem and comparable governance/community dynamics.

Direct peers

• Apollo GraphQL: Apollo is the leading commercial platform for GraphQL, the primary competing modern API protocol to gRPC. Both target high-performance service-to-service and client-to-backend API communication, with overlapping developer mindshare in microservices architectures.
• Hasura: Hasura provides a GraphQL engine and API platform focused on data API automation. It competes with gRPC for developer mindshare in defining and exposing modern APIs, particularly for data services and backend integration.

Emerging players

• Buf (Buf Technologies): Buf builds developer tooling, a schema registry, and BSR (Buf Schema Registry) specifically for Protocol Buffers and gRPC APIs. It directly serves the gRPC ecosystem with complementary tooling rather than competing protocols.
• Envoy Proxy: Envoy is a CNCF graduated service proxy that natively speaks gRPC for ingress, egress, and service-to-service traffic management. It is highly complementary to gRPC and frequently co-deployed in cloud-native stacks.
• Solo.io: Solo.io provides service mesh, API gateway, and Gloo products built on Envoy with deep gRPC support. It targets the same cloud-native infrastructure ecosystem where gRPC operates and is a natural adopter of gRPC standards.

Broad incumbents

• Postman: Postman is a leading API development and testing platform with explicit support for gRPC (via server reflection). It sits in the developer API tooling category alongside gRPC and competes for developer workflow share.
• Kong Inc. Kong provides API gateway and service mesh products with gRPC support as part of a broader API management portfolio. It is a broad incumbent in the API infrastructure space where gRPC operates.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/grpcio
• LinkedInlinkedin.com/company/grpc

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about gRPC