In testing · Solana first
promptfun.fun connects Claude to the blockchain. Ask for what you want, like “launch a token called Moonbeam”. You get a preview in plain words, you approve it in your wallet, and you get a receipt checked against the chain.
Works on the Claude Free plan. No sign-up with us. We never ask for your keys.
Being builtNo wallet needed to launch: promptfun.fun will pay the launch network fee and let you approve in chat.
Launch a token called Moonbeam, ticker BEAM.
Here’s the preview. Check it, then approve in your wallet.
promptfun.fun preview
Create a new token
Moonbeam · BEAM
CheckedWhat happens
Your wallet
Approve this action?
ReceiptConfirmed onchain
Moonbeam (BEAM) is live
Read back from the chain, with a link to the public explorer.
How it works
Tell Claude what you want done, in your own words. Claude turns it into a clear request for promptfun.fun.
promptfun.fun checks the request and builds the exact transaction. Then it reads it back to you in plain language: what happens, on which network, and what it costs.
Your wallet signs the exact transaction from the preview. Nothing happens until you tap Approve, and you can always reject. Sponsored launch with no wallet is being built: promptfun.fun will pay the network fee and let you approve in chat instead.
Testing on devnet
promptfun.fun looks the transaction up on the chain and checks it matches what you approved. The receipt shows up in the same chat, and Claude only says “done” once the chain confirms it.
Chains
We list what works today and label everything else. Nothing on this page is live on mainnet yet.
The first chain. Being tested on Solana devnet, which uses test tokens with no real value.
pump.fun only runs on Solana mainnet, so pump.fun launches arrive with mainnet.
Token launches with the same say-it, approve-it flow, one chain at a time in this order.
None of these are available yet. Each chain shows up here as working only when it works end to end.
Approximate, measured 9 Oct 2026
Every chain charges a fee to process a transaction. It goes to the network, not to promptfun.fun. Fees rise and fall with traffic, so the preview shows the estimated fee for your exact transaction before you approve.
Being builtFor token launches, promptfun.fun pays this fee for you. If you use your own wallet, your wallet pays it.
| Network | Launch a token | Send ETH or SOL | Send a token |
|---|---|---|---|
| Solana | $0.42–0.550.0038–0.0050 SOL: rent for the Token-2022 mint with its metadata (320–560 bytes, depending on name, ticker and link length) and your token account, plus one 5,000-lamport signature | under $0.0015,000 lamports per signature | under $0.001about $0.17 more if the recipient needs a token account |
| Ethereum | $0.16–0.28about 550,000 gas | $0.006–0.0121,000 gas | $0.01–0.0345,000–65,000 gas |
| Robinhood Chain | about $0.03about 552,000 gas at 0.02 gwei | about $0.001 | about $0.003 |
| Base | under $0.01about 550,000 gas at 0.006 gwei | under $0.001 | about $0.001 |
These are network fees, not promptfun.fun fees. promptfun.fun hasn’t set its own pricing. Ethereum gas was 0.1–0.2 gwei when we measured, and busy periods can cost many times more. pump.fun charges nothing to create a coin, but Solana’s network costs still apply. While we test on Solana devnet, fees are paid in test SOL with no real value.
Prices: ETH $2,503 and SOL $110 (CoinGecko). Gas: Etherscan gas tracker and each chain’s public RPC. Token launch gas was estimated for a standard OpenZeppelin ERC-20. Solana: rent from mainnet RPC for the exact account sizes, Solana fee docs, Token-2022 metadata extension, pump.fun fees. All checked 9 Oct 2026.
Further out: swaps, payments and more. They’ll show up here once they’re real, not before.
Add to Claude
promptfun.fun is a connector for Claude, and it works on the Free plan. It uses MCP, the open standard for giving AI assistants new abilities. There’s nothing to download and no promptfun.fun account to make.
https://promptfun.fun/mcp
Remote MCP endpoint on this site. Choose No sign-in in Claude unless your org uses OAuth.
Opens Claude’s add-connector dialog with the link above prefilled. Review it, then Continue and Add. You can also paste the link yourself: on claude.ai or in Claude Desktop, go to Customize → Connectors, choose + Add, then Add custom connector.
The Free plan allows one custom connector. On Team and Enterprise, an Owner adds it for the organization first, then you connect it. See “Which plans work?” below.
In a chat, open + → Connectors and switch promptfun.fun on. Then say what you want. Claude shows you the preview, you approve in your wallet, and the receipt comes back in the same chat.
Full walkthrough in the Docs.
Things to say
If something isn’t supported yet, promptfun.fun says so instead of guessing.
Safety
Launching won’t need a wallet, and that part is being built. If you bring your own, it signs and sends the transaction itself. We never see or store your keys or seed phrase.
No made-up results and no pretend success. A receipt only says “confirmed” after we read the transaction back from the chain.
The preview is read from the transaction itself, not from Claude’s summary. What you approve is what goes onchain.
Claude can ask for an action, but only you can approve it. Each approval covers one action and nothing else.
FAQ
It’s a connector for Claude that turns what you ask for into a real onchain action. It prepares the transaction, shows you a plain-language preview, lets you approve it in your wallet and hands back a receipt checked against the chain.
No. You need a Claude account, and the Free plan works. promptfun.fun explains each action in plain words before you approve it.
Not to launch a token, once that part is ready. It’s being built: promptfun.fun will pay the launch network fee, and you approve in the chat. If you’d rather use your own wallet, you can. You approve on a promptfun.fun page in your wallet, and that’s how the devnet tests run today. Before launches without a wallet open, we’ll spell out exactly where your new token goes.
Not yet. Token launches on Solana are being tested on devnet, which uses test tokens with no real value, with your own wallet. Approving in chat with no wallet, with promptfun.fun paying the fee, is being built. pump.fun launches are coming, and so are Ethereum, Robinhood Chain and Base. This page says when each one opens.
Solana comes first. Then EVM chains, in this order: Ethereum, Robinhood Chain and Base. The Chains section above shows the current state of each one.
It never asks for your keys or seed phrase. If you use your own wallet, your wallet signs and sends every transaction, and promptfun.fun never holds your funds.
No. Claude can prepare an action, but nothing happens onchain until you approve it in the chat, or in your wallet if you use one. If you cancel, nothing is sent.
Each chain charges a network fee. For token launches, promptfun.fun will pay it for you (being built). With your own wallet, your wallet pays it to the chain. Either way, the preview shows the estimate before you approve. As of 9 Oct 2026, launching a token cost about $0.42–0.55 on Solana and $0.16–0.28 on Ethereum. See Network fees for every chain. promptfun.fun hasn’t set its own pricing.
Custom connectors work on every Claude plan: Free, Pro, Max, Team and Enterprise. The Free plan allows one custom connector, and on Team and Enterprise an Owner adds it for the organization first. Source: Claude Help Center, checked 9 Oct 2026.
You get the real status, right in the chat. If the transaction failed or you cancelled it, Claude tells you that. It never says something worked when it didn’t.
Coins launched
…
Creator fees paid
…
From the public coins API when it is reachable. Shows n/a instead of guessing.
Add promptfun.fun to Claude, then tell it what you want done.