Cross Domain · protocol · CNCF

gRPC

gRPC is a high-performance, open-source remote procedure call framework that runs over HTTP/2 and uses Protocol Buffers as its interface definition language and message format. It supports unary and streaming calls, deadlines, and pluggable authentication across many languages.

grpc.io/The standard

CNCFGoverning body · Linux Foundation

2015First published

StableCurrent version

Yes — Protocol BuffersMachine-readable schema · open

89providers in the catalog

Also known as gRPC Remote Procedure Call, Google RPC.

Providers that carry gRPC 89

These providers' own APIs.json profiles carry gRPC as a tag — the provider's statement that the standard is part of what it does. APIs.io has not verified the implementation on this page; the de facto profiles on this site are where that measurement exists. Ordered by Kin Score; the top 60 of 89 are shown, and the tag page lists them all.

Postmanexemplar · 79.6 Heroic Labsstrong · 66.3 Bufstrong · 65.3 Graviteestrong · 65.2 Stack Moxiestrong · 64.5 Viamstrong · 60.7 Aptosstrong · 57.8 Sift Stackstrong · 57.4 Actionpowerstrong · 57.3 Nord Securitystrong · 56.9 Tailorstrong · 54.8 Kentikdeveloping · 53.2 Enginedeveloping · 53.0 bitdriftdeveloping · 52.7 Zenossdeveloping · 51.6 Alphausdeveloping · 51.1 AGNTCYdeveloping · 48.9 Authzeddeveloping · 48.3 Dronecode Foundationdeveloping · 48.1 Defakto Securitydeveloping · 48.0 Localyticsdeveloping · 47.6 AgiBotdeveloping · 47.1 Kurrentdeveloping · 46.7 Triton Onedeveloping · 46.4 Lightstreamdeveloping · 46.3 HappyCodeveloping · 46.0 Picarrodeveloping · 45.5 SS&C Technologiesdeveloping · 45.5 Bear Roboticsdeveloping · 45.0 Polar Signalsdeveloping · 44.5 EngFlowdeveloping · 43.3 Mysten Labsdeveloping · 42.9 Envoy Gatewaydeveloping · 42.4 Linq.ggdeveloping · 41.6 Momentodeveloping · 40.8 Quanergydeveloping · 39.8 Vapor IOdeveloping · 39.7 Einridethin · 38.2 Temporalthin · 37.1 The Guildthin · 36.7 Aalyriathin · 36.3 Plakarthin · 36.2 OpenXthin · 36.0 Qpointthin · 36.0 Clarifaithin · 35.4 Provablethin · 35.1 Spacemeshthin · 34.7 AI Arenathin · 33.6 Imandrathin · 33.4 Hailothin · 33.3 Succinctthin · 33.2 Codethin · 33.1 Science Corporationthin · 33.1 Toitthin · 32.9 Tailcallthin · 31.9 Crestathin · 31.7 Timberthin · 31.6 Unto Labsthin · 31.2 Harmonic GGthin · 29.8 Apache Arrowthin · 29.4

Reading

The Linux Foundation Is the Home of Our API Specifications, and They Should Work Together 2026-06-30
Your Diverse API Toolbox 2026-06-12
Rising Above the API Dogma 2024-06-13
The Open Source Community Tooling Built on gRPC 2020-06-09
gRPCs Potentially Fatal Weakness 2019-12-02
REST And Hypermedia And GraphQL And gRPC And Event-Driven 2019-10-01

Read from the API Evangelist standards directory, facts verified 2026-08-17. Provider links come from the catalog's own identity tags and are rebuilt nightly. If this page is wrong about a standard or a provider, say so.