coil-mcp

Live US stock market data and trading signals, as an MCP server. Market regime, ranked buy lists, 0-100 opportunity / entry-timing / hold-strength scores across ~575 S&P 500, Nasdaq-100 and macro names, sector rotation, and a 24/7 crypto board covering 81 pairs.

The free tier needs no key, no wallet, no signup.

Install

Claude Code speaks remote MCP directly — you do not need this package:

claude mcp add --transport http coil https://coil.trade/mcp

For clients that launch servers by command (Claude Desktop, Cursor, Windsurf), use this bridge:

{
  "mcpServers": {
    "coil": { "command": "npx", "args": ["-y", "coil-mcp"] }
  }
}

Or run it directly:

npx -y coil-mcp

What you get for free

The full board, delayed one market day, with no account of any kind: get_market_regime, get_buy_list, get_stock_read, get_market_leaders, get_sector_read, get_crypto_trend, get_morning_brief, get_day_board, get_rotation, get_crypto_day, get_crypto_night, get_hold_state.

Live data

Every free tool has a *_live twin. Two ways to open them:

Pay per call — x402, USDC on Base, Solana or Algorand. $0.001 to $0.25 per read, no account and no card. A wallet-equipped client pays inline via params._meta["x402/payment"] (@x402/mcp compatible). Cheapest read is /api/crypto/gate at $0.001.

Subscribe — Coil Live is $29/mo and unlocks every *_live tool plus two sold nowhere else: get_engine_feed and get_live_rules.

COIL_LICENSE_KEY=your_key npx -y coil-mcp   # subscription
COIL_KEY=your_free_key    npx -y coil-mcp   # free key: 25 live calls/day on the cheap slices

Mint a free key with no signup flow:

curl -X POST https://coil.trade/api/key -H 'Content-Type: application/json' \
  -d '{"email":"[email protected]"}'

Or sign in with a wallet instead of an email — SIWX / CAIP-122 on Base, Solana or Algorand. The signature moves no funds. See coil.trade/auth.md.

What this package is

A dependency-free stdio bridge. It forwards JSON-RPC verbatim to https://coil.trade/mcp and never inspects, rewrites or caches a payload — whatever the server supports, this supports, including tools added after you installed it. Point it elsewhere with COIL_MCP_URL.

Zero dependencies is deliberate: a market-data bridge should not ask you to trust a package tree. Node 18+.

Honest limits

Coil is an impersonal research publication — identical for every reader, never individualized advice. Scores describe historical and technical structure, not future returns. Where a study failed, the read says so: the overnight crypto continuation product ships its own refutation, because the ranking beat its random null but the studied trade lost money at real Robinhood taker fees.

The engine's live record, next to SPY and QQQ, win or lose: coil.trade/results

Links

• Agent docs and the full endpoint catalogue: coil.trade/agents
• OpenAPI: coil.trade/openapi.json
• Free proof chain: coil.trade/api/board/proof

MIT © Coil Technologies LLC