API Reference
FluxRPC API Documentation
HTTP RPC
https://cdn.fluxrpc.com?key=<your-API-key>WebSocket
wss://ws.eu.fluxrpc.comYellowstone gRPC
yellowstone.eu.fluxrpc.comHistorical Data
Quick Start
- Create an account or sign in through the unified authentication flow.
- Generate an API key for the service family you need.
- Send JSON-RPC traffic over HTTPS or subscribe over WebSocket.
curl -X POST "https://eu.fluxrpc.com?key=<your-API-key>" \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"id": 1,
"method": "getBalance",
"params": ["YOUR_WALLET_ADDRESS"]
}'Developer Guides
Start here if you are new to Solana. Each guide takes one RPC method end to end — how to call it, how to read the response, and how to make it cheaper and faster. Browse all guides
getAccountInfo Solana Developer Guide
Read a single Solana account with getAccountInfo: response fields, encoding trade-offs, parsing program-specific data, and cutting bandwidth costs.
getMultipleAccounts Solana Developer Guide
Batch up to 255 Solana account reads into one getMultipleAccounts request, handle missing accounts safely, and cut bandwidth with dataSlice. Measured before and after.
getProgramAccounts Solana Developer Guide
Fetch all accounts a Solana program owns with getProgramAccounts, then cut a 10 GB scan to kilobytes with memcmp filters, changedSinceSlot, and dataSlice.
getBalance Solana Developer Guide
Read a Solana account balance with getBalance from the browser, using Shield keys that keep your account key out of the frontend. Includes a wallet connector in plain JavaScript.
getTokenAccountsByOwner Solana Developer Guide
Fetch every token account a Solana wallet owns with getTokenAccountsByOwner, decode mints and balances by slicing bytes, and score the token with RugCheck.
getTokenLargestAccounts Solana Developer Guide
Fetch the 20 largest holders of a Solana token with getTokenLargestAccounts, then get the same list, owning wallets included, from a RugCheck token report.
Solana Holder Analysis with getTokenAccountsCount Developer Guide
In this guide, we will learn how to use getTokenAccountsCount and getTokenLargestAccounts to make a simple "holder analysis" frontend. The frontend will display the total number of holders, as well as the 20 biggest ones. This is a useful thing to do in many contexts, like trading terminals where users would want to know how healthy a token's distribution is.
sendTransaction Solana Developer Guide
Send SOL from a connected wallet: build the transfer in the browser, have the wallet sign it, and submit the signed bytes with sendTransaction.
getPriorityFeeEstimate Solana Developer Guide
Set an accurate Solana priority fee: size the compute unit limit from a simulation, then price it with getPriorityFeeEstimate before you sign and send.
Confirm a Solana Transaction over a WebSocket
Confirm a Solana transaction with signatureSubscribe: subscribe before you submit, run the socket in a Web Worker, and fall back to getSignatureStatuses.
getBlock Solana Developer Guide
Build an application that lists Solana blocks as the chain produces them. Start by fetching one block with getBlock, then improve upon your application using Yellowstone-over-websockets ("Yellowsockets").
Solana v1 Transactions Developer Guide
Solana v1 transactions run up to 4096 bytes, drop address lookup tables, and carry priority fees and compute limits in a header. Craft and send one byte by byte.
Browse by Area
Getting Started
Start with endpoints, authentication, and your first request.
Developer Guides
Follow task-based Solana walkthroughs with runnable code and optimization notes.
RPC Methods
Browse the full Solana and Fogo JSON-RPC method reference.
WebSocket
Subscribe to real-time account, slot, logs, and transaction updates.
Yellowstone gRPC
Use streaming gRPC for high-volume real-time blockchain data.
RugCheck API
Explore token intelligence, risk analysis, and RugCheck automation endpoints.
Lantern
Learn the self-hosted caching and failover layer for Solana RPC workloads.