What Is a Solana RPC Endpoint?
An RPC endpoint is the URL your application uses to talk to the Solana blockchain. Every wallet connection, token balance lookup, transaction submission, and account query goes through an RPC node. Without one, your app can't read or write anything on-chain.
Solana provides a default public endpoint at api.mainnet-beta.solana.com, but it has severe limitations: aggressive rate limiting, sendTransaction is disabled for most callers, and latency spikes during congestion. For anything beyond basic reads, you need a third-party RPC provider.
Quick start
Replace your RPC URL with the free endpoint and you're done:
// JavaScript / TypeScript
import { Connection } from "@solana/web3.js";
const connection = new Connection(
"https://rpc.solanatracker.io/public"
);
// That's it. Start making requests.
const slot = await connection.getSlot();
# cURL
curl https://rpc.solanatracker.io/public -X POST \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","id":1,"method":"getSlot"}'
# .env (for any framework)
SOLANA_RPC_URL=https://rpc.solanatracker.io/public
NEXT_PUBLIC_SOLANA_RPC_URL=https://rpc.solanatracker.io/public
Used by pump.fun Agent SDK
The pump.fun Agent Payments SDK lists rpc.solanatracker.io/public as a recommended free mainnet RPC for building tokenized AI agents. It supports both reading on-chain state and sending transactions, which is why it's one of only two free RPCs suggested for production agent workflows.
If you're building AI agents, trading bots, or any automated Solana workflow that needs a quick RPC without going through a signup flow, this is the endpoint to use. Drop it in your .env and move on.
Free vs. Paid: When to Upgrade
Free RPC works great for
- ✓ Prototyping and local development
- ✓ Hackathons and proof-of-concepts
- ✓ AI agent development and testing
- ✓ Low-traffic personal projects
- ✓ Learning Solana development
Upgrade to paid when you need
- ➜ Higher rate limits. Free endpoints cap at 5 RPS. Paid plans go from 60 to 500+ RPS.
- ➜ Shredstream. Get transaction data 50 to 150ms faster via Jito's shred relay. Included on all paid plans from Solana Tracker.
- ➜ Yellowstone gRPC. Real-time streaming with server-side filtering. Available on Business plans and above.
- ➜ V2 methods. getProgramAccountsV2 and getTokenAccountsByOwnerV2 powered by RidgeDB. 10x faster, 90% fewer credits.
- ➜ Reliability guarantees. Uptime SLAs, priority support, and no shared-endpoint congestion.
Free Solana RPC Providers Compared
Every major Solana RPC provider offers some form of free access. Here's what you actually get. Updated May 2026.
| Solana Tracker | Helius | Alchemy | QuickNode | dRPC | |
|---|---|---|---|---|---|
| Free tier | No signup required Public endpoint + 500K credits |
1M credits/mo Signup required |
30M CU/mo Signup required |
10M credits/mo Signup required |
50M CU/mo Signup required |
| No-signup endpoint | Yes | No | No | No | No |
| sendTransaction | Yes (free tier) | Yes | Yes | Yes | Public nodes only |
| Rate limit (free) | 5 RPS | 10 RPS | ~30 RPS | ~25 RPS | 30 RPS |
| Cheapest paid plan | €35/mo 15M credits, 60 RPS |
$49/mo 10M credits, 50 RPS |
PAYG $0.45/1M CU |
$49/mo 10M credits |
PAYG ~$0.06/1M req |
| Shredstream | All paid plans | Pro plan only | Not available | Not specified | Not available |
| Yellowstone gRPC | Business plan+ €399/mo |
Business plan+ $499/mo |
From $80/TB No monthly min |
From $499/mo | Not available |
| V2 methods | Yes (RidgeDB) 90% fewer credits |
No | No | No | No |
| Solana-only | Yes | Yes | No (70+ chains) | No (60+ chains) | No (multi-chain) |
Free tier sizes use different units across providers (credits, compute units, requests). Direct comparison requires normalizing by call type. Data from provider pricing pages as of May 2026.
Key Takeaways
Solana Tracker is the only provider with a completely free, no-signup public endpoint that supports sendTransaction. The public URL works immediately in any SDK or HTTP client. Paid plans start at €35/mo with Shredstream included on every tier.
Alchemy has the largest signed-up free tier (30M CU/mo) and is a good choice for multi-chain teams already using Alchemy on Ethereum. No Shredstream support.
Helius is the strongest Solana-native option for developers who need enhanced APIs (DAS, parsed transactions, webhooks). Free tier is smaller (1M credits) but the API depth is unmatched.
dRPC offers the largest raw free tier (50M CU) but routes to public nodes, which limits transaction sending reliability and latency.
Ready to Scale? Solana Tracker Paid Plans
When you outgrow the free endpoint, Solana Tracker's paid plans start at €35/mo with Shredstream included on every tier.
Developer
15M credits/mo · 60 RPS · Shredstream included
€35/mo
Business
100M credits/mo · 225 RPS · Shredstream + Yellowstone gRPC
€399/mo
Professional
250M credits/mo · 500 RPS · Shredstream + Yellowstone gRPC
€799/mo
Standard RPC calls cost 1 credit. V2 methods (powered by RidgeDB) also cost 1 credit but are orders of magnitude faster. Archival methods cost 10 credits. 15% off with annual billing.
Frequently Asked Questions
Yes. Solana Tracker provides a free public RPC at https://rpc.solanatracker.io/public. No signup, no API key, no account required. Just use the URL directly in your code.
Free RPC endpoints work well for prototyping, testing, and low-traffic applications. For production with real users or trading bots, upgrade to a paid plan for higher rate limits, Shredstream, and guaranteed uptime.
The official Solana endpoint at api.mainnet-beta.solana.com disables sendTransaction for most callers to prevent abuse. It's rate-limited and intended for basic reads only. Any application that submits transactions needs a third-party RPC provider.
Shredstream uses Jito's shred relay to deliver block data to your RPC node 50 to 150ms faster than standard gossip. Your application sees new transactions and blocks sooner. Critical for trading bots, arbitrage, and any latency-sensitive workflow. Included on all Solana Tracker paid plans.
V2 methods like getProgramAccountsV2 and getTokenAccountsByOwnerV2 are powered by RidgeDB, an indexing engine decoupled from the RPC node. They return the same data as standard methods but are dramatically faster and cost 90% fewer credits. No validator bottlenecks, no scan overhead. Exclusive to Solana Tracker.
Yes. The free endpoint at rpc.solanatracker.io/public is listed in the pump.fun Agent Payments SDK as a recommended free mainnet RPC. It supports reading state and sending transactions, making it suitable for AI agents, bots, and automated workflows during development and low-traffic production use.
By raw volume, dRPC offers 50M CU/mo and Alchemy offers 30M CU/mo (both require signup). But Solana Tracker is the only one that offers a completely open endpoint with no signup at all. Depends on whether you optimize for volume or friction.
The free public endpoint supports standard HTTP JSON-RPC requests including sendTransaction. For WebSocket subscriptions and real-time streaming, you'll want a paid plan which includes WebSocket connections and optionally Yellowstone gRPC.