Helius

Helius is the leading developer platform on Solana — powering some of the biggest names in crypto like Coinbase, Phantom, and Bloomberg. We're growing the engineering team and looking for people who are obsessed with solving hard problems, performance, and scaling distributed systems. If you want to work on mission-critical Solana infrastructure, and shape how crypto is used across the world, let's talk. The future of crypto is being built right now. Come build it with us. Link in comments.

The global financial system is moving onchain. We joined the SDP to get enterprises there—faster: Distributed Ledger Technology (DLT) and public, permissionless blockchains like Solana are forcing traditional fintechs to evolve in real time. Enterprises are rushing to modernizing their tech stacks to support: - 24/7 trading and T+0 settlement - Payments and remittances that arrive in milliseconds - Global financial access for anyone with internet and a smartphone All with sub-second finality, fees measured in fractions of a penny, and the scale to handle tens of millions of transactions per day. But transforming legacy financial businesses isn’t easy (or fast). And enterprises don't want to become crypto experts to get there. That’s where the Solana Developer Platform (SDP) plugs in. The SDP is an AI-ready, API-first platform that aggregates best-in-class Solana infrastructure into a single, unified interface. TL;DR The SDP gives Mastercard, Worldpay, Western Union, and other leading fintechs a compliant path to shipping real financial products on Solana—fast. This is exactly why Helius exists. We deliver Solana infra at global scale with enterprise-grade reliability: - RPCs and historical APIs for any onchain data - Data streaming tools for ultra-low-latency updates - Developer APIs for building out any financial use case - Validator-as-a-Service for earning yield on staked SOL - Transaction landing services for reliable sends and swaps - AI-native developer tooling for getting products to market faster All with best-in-class security and compliance at the center. This has been our sole focus since 2022. And since then, we: - Handled Solana's largest network events - Served the ecosystem's highest-volume apps - Never flinched, faltered, or left when things got tough If you're an enterprise fintech exploring SDP, reach out — we have the infrastructure, proven experience, and Solana-native expertise you deserve.

Meet Gatekeeper: The Helius Edge Gateway Now, every request is tens to hundreds of ms faster Gatekeeper eliminates our edge latency and unlocks the true speed of our APIs and services with response time improvements from tens to hundreds of ms. Here’s the backstory: When we first launched, we used Cloudflare to handle routing, auth, load balancing and more. This architecture allowed us to ship and iterate quickly. However, as Solana grew, Cloudflare became a bottleneck. Fast forward to today: Helius is the preferred infrastructure provider for 1000s of Solana developers and serves billions of requests per day. As the Solana ecosystem has grown, so has a class of workloads where every millisecond matters: - Real-time liquidity engines - High-frequency trading (HFT) - Latency-sensitive MEV strategies For these workloads, the limiting factor isn’t any single piece of infra. It’s physics. When a request has to travel from a user --> a cloud edge network --> our backend nodes before being processed, that extra hop can be detrimental. No amount of software optimization can eliminate it. Even at the speed of light, the round trip to and from a general-purpose edge adds measurable milliseconds. Our customers asked us a simple question: “Can you give us a shorter path?” The answer, resoundingly, is yes. The answer is a purpose-built edge gateway that gives latency-critical workloads the most direct route possible to our infrastructure. A solution designed to handle Solana’s speed at Helius’s scale. Meet Gatekeeper: Our in-house edge gateway built in Rust using the Hyper HTTP framework. Gatekeeper acts as a single, unified entry-point for all requests: it terminates connections at geographically distributed edge locations, and intelligently routes requests to our backend infrastructure. For latency-critical workloads, Gatekeeper provides the shortest network path, reducing hops and shaving off milliseconds. This enables us to optimize every service that matters for high-frequency, low-latency workloads. So, where is Gatekeeper at today? Gatekeeper is available in public beta to all Helius customers and supports: - All standard Solana RPC and WSS endpoints - All Helius-specific RPC methods (e.g., gTFA) - All DAS and Photon API endpoints - The Enhanced Transactions API - The Helius Priority Fee API Gatekeeper is currently opt-in while we continue to optimize and migrate more of our internal services. Over the next few months, Gatekeeper will become the default for all Helius RPC and WebSocket traffic. To experience Gatekeeper’s speed, replace your existing Solana mainnet RPC URL with our new beta endpoint: beta[.]helius-rpc[.]com/?api-key=<YOUR_API_KEY> That’s it! For more info, read our docs and blog — linked in the comments.

We're #hiring a new Software Engineering Manager in San Francisco Bay Area. Apply today or share this post with your network.

We're #hiring a new Sr. Full-Stack Engineer, Developer Portal in Chicago, Illinois. Apply today or share this post with your network.

We're #hiring a new Staff Backend Engineer, Historical APIs in San Francisco Bay Area. Apply today or share this post with your network.

Solana wallet history is now solved. Here’s how to get everything with just 1 request: Last year we released the getTransactionsForAddress RPC method that combines getSignaturesForAddress and getTransaction into a single, powerful RPC call for querying historical data on Solana. Today, we’re releasing the tokenAccounts filter — a brand new feature that enables you to get every transaction for a Solana wallet, including all of the wallet’s Associated Token Accounts (ATAs), with just 1 request. To use it, simply add `tokenAccounts: balanceChanged` to your filters object in your getTransactionsForAddress request, and you're all set! Here’s why it’s a big deal: On Solana, your wallet doesn’t actually hold your tokens. Instead, your wallet has what are called Associated Token Accounts (ATAs), which hold your tokens. This is where it gets tricky: If you use traditional RPC methods like getSignaturesForAddress and getTransaction on a wallet, it would only return transactions for the wallet address, and completely miss transactions between token accounts. So the hacky workaround was: 1. Call getTokenAccountsByOwner to get token accounts for a wallet 2. Call getSignaturesForAddress for the wallet itself 3. Call getSignaturesForAddress for every single token account 4. Merge all results together 5. Deduplicate transactions 6. Sort chronologically This is slow, inefficient, and expensive. Now, simply by adding the tokenAccounts filter, developers can get the unified history for any Solana address in a single request. This new filter is essential for: - Wallets showing complete transaction history - Portfolio trackers that need every token movement - Tax software calculating gains/losses across all tokens - Analytics dashboards displaying user activity - And a lot more To get started, read our docs and explore our SDK (linked in the comments)!

Last year we re-built the RPC API from first principles. The result? Methods are ~200ms faster vs. competitors: The image below compares getProgramAccounts (a notoriously heavy RPC method) between Helius (orange) and our competitors. TL;DR We're much faster. How'd we do it? We split the API into distinct systems, each one optimized for end-to-end performance: historical data, account state, etc. To experience the speed for yourself, read our docs (linked in the comments). Enjoy