{
  "markdown": "# Gas Fee Predictor — MCP Server\n\nLive Ethereum + Layer-2 gas-fee data for AI agents, via the\n[Model Context Protocol](https://modelcontextprotocol.io). Works with\n**Claude Desktop, OpenClaw, Cursor, Cline**, and any other MCP client.\n\nIt's a thin, read-only wrapper over the free public API at\n`https://api.gasfeepredictor.com` (no key, no auth). Every answer includes a\ncitation back to [gasfeepredictor.com](https://gasfeepredictor.com).\n\n## Tools\n\n| Tool | What it answers |\n|---|---|\n| `get_current_gas` | \"What's the Ethereum gas fee right now?\" — low/avg/high Gwei, ETH price, send-now-vs-wait. |\n| `get_l2_gas` | \"Cheapest L2 right now?\" — live Arbitrum / Base / Optimism / Polygon fees. |\n| `get_eth_price` | Current ETH/USD and 24h change. |\n| `best_time_to_transact` | Send now or wait? Next cheaper window + expected savings. |\n| `estimate_transaction_cost` | USD cost of an ETH transfer / USDC transfer / Uniswap swap / NFT mint (or custom gas), per tier. |\n\n## Install\n\nWith npm (once published):\n\n```bash\nnpx gasfeepredictor-mcp\n```\n\nOr from source:\n\n```bash\ngit clone https://github.com/higherbeing/gasfeepredictor-mcp\ncd gasfeepredictor-mcp\nnpm install\nnpm start\n```\n\nRequires Node ≥ 18.\n\n## Configure your client\n\n### Claude Desktop\nAdd to `claude_desktop_config.json` (macOS:\n`~/Library/Application Support/Claude/claude_desktop_config.json`):\n\n```json\n{\n  \"mcpServers\": {\n    \"gasfeepredictor\": {\n      \"command\": \"npx\",\n      \"args\": [\"-y\", \"gasfeepredictor-mcp\"]\n    }\n  }\n}\n```\n\n(Or use `\"command\": \"node\", \"args\": [\"/absolute/path/to/gasfeepredictor-mcp/index.mjs\"]` to run from source.)\n\nRestart Claude Desktop, then ask: *\"What's the Ethereum gas fee right now, and is it cheaper on an L2?\"*\n\n### OpenClaw / Cursor / Cline\nAny MCP-capable client uses the same shape — register a stdio server with\n`command: npx, args: [\"-y\", \"gasfeepredictor-mcp\"]` (or `node` + the path to\n`index.mjs`) in that client's MCP servers config.\n\n## Config\n\n| Env var | Default | Purpose |\n|---|---|---|\n| `GASFEE_API_BASE` | `https://api.gasfeepredictor.com` | Override the API base. |\n\n## Notes\n- Read-only and unauthenticated — it only reads public gas data.\n- Data refreshes ~every 30–60s upstream.\n- MIT licensed.\n",
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  "sha": "42d86cf55af25aefed50b1e3a0e53efa80b594b03b3b57ae7c1d7118b8829200",
  "repo_slug": "higherbeing/gasfeepredictor-mcp",
  "fonte": "repo",
  "truncated": false,
  "api": "https://agentalog.com/api/listings/mcp_io_github_higherbeing_gasfeepredictor_mc_1da28d7f/readme"
}