Known limitations

J Tools ships a lot, and there are real edges. This is what the product does not do yet and where a token type can read differently than you expect. If you hit one of these, it is a known boundary, not a bug on your side.

Network and scope

#network-and-scope

The tools act on Solana mainnet only. There is no testnet mode inside a tool, and no EVM or other-chain path, so everything you run here is live and on-chain. The one devnet piece is the Devnet Faucet, which funds a devnet wallet for your own testing; the daily limits are on its page. It does not put Token Creator, Create LP, the trading tools or the transfer tools on devnet. For the canonical network and venue list, see Supported DEXs and networks.
No public developer API yet. J Tools is a web app you drive from the browser, with no documented REST or SDK surface to build against programmatically. If that changes, it will be announced here first.

Create LP DEX coverage

#create-lp-dex-coverage

Create LP shows nine pool types in the picker so you can compare pool structures in one place. Most of them are live and create a real pool on-chain.

Live routes today. Raydium Standard AMM (CPMM, the recommended default), Raydium Concentrated Liquidity (CLMM), Raydium Legacy AMM V4, PumpSwap, Meteora DLMM, Orca Whirlpool, and Orca Splash Pool all complete a real pool.
Coming soon: Meteora DAMM V2 and DAMM V1. These two routes are marked as coming soon in the picker and are blocked before any wallet signature, so you never pay a fee for a route that cannot complete.
DAMM positions elsewhere. Liquidity Add / Remove lists a Meteora DAMM V2 position but cannot add, remove or claim on it yet. My Pools shows it, and LP Fee Claim collects its fees. DAMM V1 positions are not read by any tool.

Claim tools

#claim-tools

The claim tools read what is already on-chain, so what they can collect depends on the program behind each source.

Creator fees. Creator Fee Claim reads the Pump.fun creator vault, PumpSwap creator vaults after graduation and Raydium LaunchLab creator vaults before migration. Meteora DBC and Bags.fm are listed as unavailable. Only the wallet that launched the token can claim.
LP fees. LP Fee Claim collects from Raydium CLMM, Meteora DLMM, Meteora DAMM V2 and Orca Whirlpool (Splash Pool included) positions. Raydium standard pools and PumpSwap pools add fees to the pool itself, so they show as compounding with nothing to claim.
Token-2022 tax. Token-2022 Tax Collector works only on a mint with the transfer-fee extension, signed by its withdraw authority. If that authority was revoked, the withheld fees stay locked for good. One sweep covers up to 2,000 accounts, largest first, so a mint with more holders needs another sweep.
Imported wallets. Keys you import into Claim Center or the three claim tools live only in that browser tab and are gone after a reload. Rent is counted in Claim Center but reclaimed in Close Account.

Token-2022 quirks

#token-2022-quirks

Token-2022 (the newer SPL token program) carries extensions like transfer fees and transfer hooks. J Tools’ own scanners read those extensions consistently, but the venues you connect to do not all treat them the same way.

Some venues read a Token-2022 mint differently than classic SPL. A pool can value or label a Token-2022 position in a way that surprises you, especially when the mint uses transfer fees or hooks. Pool math does not net out transfer fees, and many pools reject hooked tokens, so pool creation can fail on-chain or behave oddly.
What to do. When a tool flags a Token-2022 risk warning, read it. It is non-blocking by design, so the decision stays yours.

#related-references