Top-20 holders + concentration metrics.
Read-only public RPC. No wallet, no login. Solana requires no API key. Ethereum requires a free Etherscan key (etherscan.io/myapikey). Replaces a paywalled feature on Photon and GMGN.
public on-chain data only · no wallet connection · not investment advice
| # | Address | Balance | % of Supply |
|---|
Concentrated supply is exit risk. This is the signal.
When a small number of wallets hold a large percentage of a token's supply, any one of those wallets can move the market significantly by selling. On pump.fun and similar launches, coordinated bundles of wallets frequently acquire 20–50% of supply in the first few blocks — then dump on retail buyers who arrived later.
The concentration index condenses the distribution into three numbers: top-1, top-5, and top-10 holder shares. A well-distributed token has no single wallet above 3–5%, and the top-5 holding less than 20–25% combined. Numbers significantly above those levels warrant caution.
Why this was paywalled: Birdeye, GMGN, and Photon all charge subscription fees or require account creation to view holder data. The underlying data is public — it's on-chain, accessible to anyone who knows the getTokenLargestAccounts RPC call. This tool makes it free.
For Solana: this tool calls getTokenLargestAccounts (returns up to 20 largest token accounts) and getTokenSupply against the public Solana mainnet RPC. No API key required. Public RPCs rate-limit this call — if you see a 429 error, wait 30–60 seconds and retry. For Ethereum: uses the Etherscan V2 API (tokenholderlist). Etherscan deprecated their unauthenticated V1 endpoint in April 2025 — a free API key is now required. Get one at etherscan.io/myapikey in under a minute. The key is used only client-side in your browser and is never sent to Septim servers.