GasNow
Live crypto fees for AI assistants: cost to send USDT on 12 networks (Tron, Base, Solana...), exchange withdrawal fees, bridge quotes, gas and Bitcoin fees. Free, no key.
Hosted MCP Server
npx add-mcp 'https://mcp.gasnow.tools'Installs into Claude Code, Codex, Cursor and more
Documentation
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Home%20%E2%80%BA%20Gas%20API › AI assistants (MCP)
GasNow for AI assistants
Give ChatGPT, Claude, Cursor or any MCP-compatible assistant live access to GasNow: what it costs to send USDT on every network, exchange withdrawal fees, bridge costs, gas and the market. Free, no key.
MCP server URL: https://mcp.gasnow.tools
Claude
Settings → Connectors → Add custom connector → name it GasNow and paste the URL above (authentication: none). In Claude Code, install the plugin (MCP server plus a skill that knows when to use it): /plugin install gasnow --marketplace j0n777/gasnow, or just the server: claude mcp add --transport http --scope user gasnow https://mcp.gasnow.tools
ChatGPT
With developer mode enabled: Settings → Connectors → Create → paste the URL above (no authentication). For a custom GPT, add an Action and import the schema from https://gasnow.tools/openapi.json.
Cursor, Windsurf and other clients
{
"mcpServers": {
"gasnow": { "url": "https://mcp.gasnow.tools" }
}
}
Tools
| Tool | What it returns |
|---|---|
get_network_fees | Cost to send the native coin, USDT/USDC and a swap on 12 networks (USD and BRL) |
get_exchange_withdrawal_fees | Withdrawal fees for USDT, USDC and BTC by exchange and network |
get_bridge_quotes | Cheapest route and cost to move value between networks |
get_gas_price | Live gas on Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche |
get_bitcoin_fees | Bitcoin fee rates in sat/vB |
get_market_snapshot | Prices, Fear & Greed, Market Stress, Leverage, halving cycle, trending tokens |
get_crypto_news | Latest crypto headlines with summaries |
Prefer plain HTTP? Use the GasNow gas API or the OpenAPI spec. Machine-readable site guide: llms.txt.
Frequently asked questions
What is MCP?
The Model Context Protocol is the open standard AI assistants such as Claude, ChatGPT and Cursor use to connect to outside tools and data. Adding the GasNow MCP server lets the assistant read GasNow's live numbers while it answers.
Is it free?
Yes. No key and no account. It allows 10 calls per minute per IP, which is plenty for a chat.
What can I ask?
For example: "What is the cheapest network to send USDT right now?", "How much does Binance charge to withdraw USDT on TRC-20?", "What does it cost to bridge USDT from Tron to BNB Chain?", "What is Ethereum gas now?" or "Summarize the crypto market today".
Trackers
- Ethereum gas tracker
- Bitcoin fee tracker
- Gwei converter
- Best time to send ETH
- Ethereum gas history
- Bitcoin fee history
Transaction costs
- Send ETH
- Send USDT (ERC-20)
- Uniswap swap
- Mint an NFT
- Send Bitcoin
- Send USDT: every network
- All costs
Market indicators
Fees & API
- USDT withdrawal fees
- TRC-20 fee now
- Bridge fees
- Free gas API
- Blocknative alternative
- Use in ChatGPT / Claude (MCP)
- Fee widget
Em português
- Taxa para enviar USDT
- Taxa de saque de USDT
- Taxa da rede Tron
- Taxa do Bitcoin hoje
- Gás da Ethereum hoje
- Bridge de USDT
GasNow
GasNow (gasnow.tools) is the community-run successor of the GasNow gas tracker, online since 2021 after the original gasnow.org closed. Free, independent and not affiliated with SparkPool. Data is provided for information only and is not financial advice. © 2026 GasNow.