ERPC Upgrades Solana Geyser gRPC Endpoints Across All Regions — Reduced Latency and Variance Through Richat Adoption and Streaming Infrastructure Improvements

ERPC, operated by ELSOUL LABO B.V. (Headquarters: Amsterdam, the Netherlands; CEO: Fumitake Kawasaki) together with Validators DAO, announces that it has completed a foundational upgrade of its Solana Geyser gRPC endpoints across all available regions.

In this update, ERPC has revised its Geyser gRPC streaming architecture by leveraging Richat, an open-source streaming framework developed by Lamports Dev. In addition, ERPC has improved the logic of the Rust-based proxy that underpins its network, contributing to reduced latency and lower variance in data delivery.

Within the Solana ecosystem, Geyser gRPC serves as a critical interface for retrieving blockchain events such as transactions, accounts, and slots in real time. In practical operation, however, increases in data volume and filter complexity can lead to compounding factors such as congestion on single paths, duplicate delivery, retransmission overhead, and indirect routing.

These factors tend to manifest not only as higher average latency, but also as increased variance across time periods and regions, becoming a significant determinant of operational quality for applications designed for global deployment.

Richat, adopted by ERPC in this update, is a streaming framework designed to deliver Solana blockchain data with low latency and high reliability. It provides multiplexing capabilities that allow multiple streaming sources to be consumed concurrently and delivered as a single output stream.

By enabling high-performance filtering and deduplication during the delivery stage, Richat helps suppress unnecessary processing and retransmissions, contributing to improved stability across the entire streaming path. Its QUIC-oriented design further aims to balance high throughput with low latency.

Richat: https://github.com/lamports-dev/richat

By integrating Richat into its Solana Geyser gRPC endpoints, ERPC has further optimized both streaming paths and delivery processing, resulting in additional latency improvements. As a result, the currently offered Geyser gRPC endpoints have updated their performance baseline compared to the previous configuration.

ERPC operates observation and delivery points across regions including Frankfurt, Amsterdam, New York, Chicago, Tokyo, and Singapore. This global presence allows ERPC to monitor regional advantages and disadvantages that vary by time of day and network conditions, and to retrieve data from locations with more favorable conditions. Rather than relying on a single region, ERPC’s globally connected and monitored setup enables it to adapt to Solana’s dynamic network characteristics.

Alongside the streaming updates, ERPC has refreshed the logic of its globally deployed Rust-based proxy. This proxy is shared across all regional Geyser gRPC endpoints, and its processing efficiency and control mechanisms directly affect delivery characteristics in every region.

Through this refresh, ERPC has reduced proxy-side overhead by revisiting connection management and internal processing flows. As a result, streaming efficiency has improved across all regions, not limited to any specific location.

Because Solana’s slot leaders rotate globally, architectures that depend on a single region inevitably encounter time-based advantages and disadvantages. ERPC has addressed this structural challenge through its multi-region Geyser gRPC offerings and gRPC Bundle plans.

With this all-region upgrade, latency at each regional Geyser gRPC endpoint has improved compared to the previous configuration.

ERPC offers Geyser gRPC both as single-region plans and as gRPC Bundle plans that allow multiple regions to be used together. This upgrade has been applied to all Geyser gRPC endpoints across these plans.

The gRPC Bundle plans allow multiple regional Geyser gRPC endpoints to be used under a single contract, enabling multi-region architectures at a more practical cost compared to stacking individual subscriptions.

Single-region gRPC plans are suitable for PoC or region-focused deployments, while gRPC Bundle plans are well suited for global services or architectures that need to mitigate time-based regional advantages and disadvantages.

ERPC will continue research and development toward providing even faster Geyser QUIC connections. Achieving higher streaming performance requires more than changing a single protocol; it involves coordinated design across data ingestion points, delivery topology, routing control, and client connection models.

ERPC will continue to pursue incremental improvements based on insights gained from real-world operation.

In conjunction with a recent platform refresh, ERPC has reset its free trial program. Even for users who have previously used the free trial, the current ERPC platform reflects updated architecture and delivery characteristics.

This provides an opportunity to evaluate the upgraded Geyser gRPC endpoints across all regions in a real environment.

For guidance on optimal regional configurations, selection between gRPC single-region and Bundle plans, or migration planning from existing setups, consultations are available via the Validators DAO official Discord.

Validators DAO Official Discord: https://discord.gg/C7ZQSrCkYR
ERPC Official Website: https://erpc.global/en