Feature

gRPC

High-performance binary RPC over HTTP/2.

13 providers 86 APIs 12 declared variants

The API exposes gRPC services with protobuf contracts and HTTP/2 transport. Chosen for low-latency, high-throughput, strongly typed service-to-service communication.

13 API providers on the APIs.io network offer grpc. The highest-rated are NVIDIA NIM, Aptos, Weaviate, Google Quantum AI, Triton One.

Providers

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Strong 3 Solid coverage with minor gaps
NVIDIA NIM NVIDIA NIM (NVIDIA Inference Microservices) is a catalog of GPU-accelerated, containerized AI inference mic... 10 APIs 69.9 Aptos Aptos is a Move-based Layer 1 blockchain platform that exposes a REST API for reading on-chain state and su... 4 APIs 62.9 Weaviate Weaviate is an open-source, AI-native vector database that enables developers to build semantic search and ... 1 API 60.5
Developing 6 Usable, with meaningful gaps to close
Google Quantum AI Google Quantum AI is Google's quantum-computing research and engineering arm, building superconducting quan... 10 APIs 59.3 Triton One Triton One is a high-performance Solana RPC and blockchain infrastructure provider operating globally distr... 9 APIs 58.3 Grafana Grafana Labs builds the open and composable observability stack used by millions of engineers to visualize,... 20 APIs 53.4 Apache Dubbo Apache Dubbo is a high-performance, Java-based open-source RPC framework that provides service discovery, t... 3 APIs 50.9 Jito Labs Jito Labs is the Solana MEV infrastructure company behind Jito-Solana, the MEV-enabled validator client tha... 10 APIs 49.1 Ballerina Integration problems have been solved by restricted drag-and-drop tools/DSLs or generic programming languag... 1 API 47.7
Thin 3 Limited public surface area
celestia Celestia is the first production modular data availability blockchain. It separates consensus and data avai... 10 APIs 39.6 Jaeger Jaeger is an open-source, end-to-end distributed tracing platform for monitoring and troubleshooting transa... 3 APIs 38.4 Apache Tomcat Apache Tomcat is an open-source implementation of the Java Servlet, JavaServer Pages (JSP), Java Expression... 2 APIs 30.9
Emerging 1 Early or largely undocumented
Varnish Cache Varnish Cache is a high-performance HTTP accelerator and reverse proxy designed for content-heavy dynamic w... 3 APIs 25.7

What Providers Actually Declared

This feature is a canonical term. These are the free-text strings providers wrote in their own apis.yml that map onto it.

Grafana Synthetic Monitoring — global probe network for HTTP, DNS, TCP, ICMP, scripted browser, gRPCHTTP/2 SupportNVIDIA Riva speech NIMs (Parakeet ASR, Canary translation, Magpie TTS) with HTTP and gRPC adaptersNative Jaeger api_v2 ingest over gRPC (14250) and HTTP (14268) for legacy SDKsQuantum Engine REST/gRPC API (quantum.googleapis.com, v1alpha1) for program, job, processor, reservation, and calibration managementREST, GraphQL, and gRPC APIsShredStream gRPC service for sub-slot Solana shred delivery to bots, dApps, and validatorsTriple Protocol (gRPC Compatible)Yellowstone Dragon's Mouth gRPC streaming for slots/blocks/transactions/accounts/blockmetacelestia-app exposes Cosmos SDK gRPC (:9090), REST (:1317), and CometBFT RPC (:26657) for consensus-level queriesgRPC APIgRPC transaction streaming

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