Ask for gas fees right now and get every supported chain side by side: base fee, slow / standard / fast priority tiers, the USD cost of a transfer, ERC-20 transfer, swap, NFT mint and contract deployment, trend and congestion, and which chain is cheapest at this moment. Estimate any transaction from gas or compute units, or rank chains by deployment cost for a given bytecode size. Live from public RPCs, read-only.
Tools:
- gas_now — Current fees on Ethereum, Base, Arbitrum, Robinhood Chain and Solana: base fee, slow/standard/fast tiers, USD cost per transaction type, trend and the cheapest chain.
- estimate_tx_cost — Cost of one transaction on a chain at a speed tier, by transaction type (transfer, erc20_transfer, swap, nft_mint, deploy) or explicit gas / compute units.
- cheapest_chain_to_deploy — Rank Ethereum, Base, Arbitrum, Robinhood Chain and Solana by the cost of deploying a contract or program of a given bytecode size.
Targets questions like: “ethereum gas fees now”; “gas price today”; “base gas fee”; “arbitrum gas fees”; “solana priority fee”; “cheapest chain to deploy smart contract”.
Documentation: https://tokenos.ai/mcp/gas-tracker
Outputs are informational — on-chain reads, deterministic calculators and heuristic scans — not financial, legal or security advice. TokenOS is non-custodial and never holds keys or funds; anything you launch, deploy or sign happens from your own wallet.
How to use
- 1Add it in ChatGPT
Open TokenOS Gas Tracker in ChatGPT's Plugin directory (button above), select + to add it and sign in if asked.
- 2Use it in a chat
Type @ in the composer and pick TokenOS Gas Tracker, or start your message with its name. ChatGPT may also suggest it when it fits what you ask.
Things to ask
- “What are gas fees right now on Ethereum, Base and Arbitrum?”
- “How much does a swap cost on Solana at the moment?”
- “Cheapest chain to deploy a 20 KB contract?”