TokenOS Gas & Fee Tracker MCP MCP server

A read-only MCP server that provides live gas fees, transaction costs, and network congestion data for Ethereum, Base, Arbitrum, Robinhood Chain, and Solana. It allows agents to estimate costs for various transaction types, identify the cheapest chain for deployment, and retrieve current fee tiers in both native currency and USD.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by TokenOS

MCP endpoint (Streamable HTTP)

https://tokenos.ai/api/mcp/apps/gas-tracker

Vendor documentation

What you can do with it

Check current gas fees across multiple chains
Estimate the cost of a specific transaction type
Find the cheapest chain for contract deployment

Tools advertised by the last live check:

gas_now
estimate_tx_cost
cheapest_chain_to_deploy

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http tokenos-gas-fee-tracker-mcp https://tokenos.ai/api/mcp/apps/gas-tracker

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add tokenos-gas-fee-tracker-mcp --url https://tokenos.ai/api/mcp/apps/gas-tracker

Cursor

Merge this server into .cursor/mcp.json in your project, then enable tokenos-gas-fee-tracker-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "tokenos-gas-fee-tracker-mcp": {
      "url": "https://tokenos.ai/api/mcp/apps/gas-tracker"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "tokenos-gas-fee-tracker-mcp": {
      "type": "streamableHttp",
      "url": "https://tokenos.ai/api/mcp/apps/gas-tracker",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start tokenos-gas-fee-tracker-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "tokenos-gas-fee-tracker-mcp": {
      "type": "http",
      "url": "https://tokenos.ai/api/mcp/apps/gas-tracker"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http tokenos-gas-fee-tracker-mcp https://tokenos.ai/api/mcp/apps/gas-tracker

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "tokenos-gas-fee-tracker-mcp": {
      "url": "https://tokenos.ai/api/mcp/apps/gas-tracker"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "tokenos-gas-fee-tracker-mcp": {
      "serverUrl": "https://tokenos.ai/api/mcp/apps/gas-tracker"
    }
  }
}

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