⛽ GasNow

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://mddqwppgucgzefzddajy.supabase.co/functions/v1/mcp

Claude

Settings → Connectors → Add custom connector → name it GasNow and paste the URL above. In Claude Code: claude mcp add --transport http gasnow https://mddqwppgucgzefzddajy.supabase.co/functions/v1/mcp

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://mddqwppgucgzefzddajy.supabase.co/functions/v1/mcp" }
  }
}

Tools

ToolWhat it returns
get_network_feesCost to send the native coin, USDT/USDC and a swap on 12 networks (USD and BRL)
get_exchange_withdrawal_feesWithdrawal fees for USDT, USDC and BTC by exchange and network
get_bridge_quotesCheapest route and cost to move value between networks
get_gas_priceLive gas on Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche
get_bitcoin_feesBitcoin fee rates in sat/vB
get_market_snapshotPrices, Fear & Greed, Market Stress, Leverage, halving cycle, trending tokens
get_crypto_newsLatest 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 30 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".