Coil Market Board — scored US stocks for AI agents
Pricing
Pay per usage
Coil Market Board — scored US stocks for AI agents
A scored US stock market board for AI agents: regime verdict per book (risk-on or stand down), ranked candidates, and opportunity/entry/hold scores for ~560 S&P 500, Nasdaq-100 and macro names, plus a BTC/ETH trend gate. Free tier needs no key. Scores only, not advice.
Returns a scored, ranked US stock market board as dataset rows: a regime verdict per book, then every scored name with opportunity, entry-quality and hold-strength scores — so an agent has a disciplined read instead of screening 500 tickers and buying whatever it saw most recently.
Free tier needs no key, no wallet and no account.
What you get
Each run writes three kinds of row:
row_type | What it is |
|---|---|
regime | One per book — the verdict and the permission ladder. Read these first. |
name | One per scored security: opp, entry_q, hold_q, state, sector, leadership flag. |
record | Optional. The publisher's own return vs SPY and QQQ, with its sample-size note. |
Read top-down. If a book's ladder_rung is CASH, the ranked names under it are context, not
a green light. An agent that skips the regime row and buys the top-ranked name every day is not
running this strategy.
Input
| Field | Default | Meaning |
|---|---|---|
book | all | all, spx (S&P 500), qqq (Nasdaq-100), macro, crypto |
includeRegime | true | Emit the regime row per book |
includeRecord | false | Emit the publisher's benchmark-relative record |
licenseKey | — | Optional Coil Scanner key for the live intraday board |
The live board recomputes about every 5 minutes while the US market is open; the free tier is the same board one market day delayed. /api/board/asof is the exception everywhere: an immutable archive, never revised. Without a licence key you get the full board one market day delayed — genuinely usable for a
swing-timeframe agent, which is what this is for.
Reading the scores
opp— opportunity, 0–100. A percentile rank across the scored universe on the publish date. Not a return forecast.entry_q— entry quality, 0–100: buyable now versus extended. Timing only.hold_q— hold strength, 0–100: trend durability if a position already exists.state—firing/ready/setup/wait/chase/falling. Never an instruction.
Check the publisher before trusting it
Both free and unauthenticated:
- coil.trade/api/perf — the engine's own return versus SPY and QQQ, funding-adjusted, published with its sample size. Omitted rather than estimated when the underlying data is unavailable.
- coil.trade/api/board/proof — an append-only SHA-256 commitment over every archived day, written at publish time before the outcome was known, with a verification recipe that reproduces byte-identically in Python and JavaScript.
Other ways to read the same board
- Free MCP server:
claude mcp add --transport http coil https://coil.trade/mcp - Pay per read over x402 — $0.001–$0.25, no account
- Open source harness: github.com/joeyfife/coil-agent
Disclaimer
Impersonal research publication — identical for every reader. Scores and states only: never stop prices, never target prices, never individualized investment advice. Not a managed account, not a signal service, not a guarantee of any outcome. Markets can lose money and an automated agent can lose it faster. See coil.trade/terms.
