Coil MCP

The top-down stock market regime read: risk-on, be-selective or stand-down. Returns, for each book (S&P 500, Nasdaq-100, macro, BTC/ETH crypto), the regime mode and verdict, the green sectors and the sectors whose names are open to buy. Free sample: headline fields per book, one market day delayed.

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{
  "title": "Market regime",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Today's ranked buy-list sample per book across two lanes (risk-adjusted and swing): buy candidates among US stocks and ETFs (the crypto book lists coins), as the top pick per lane and the top 3 READY candidates overall, each with its buy band (high or medium), entry window (READY or SETTING UP) and ladder permission, plus the regime mode showing whether the list is actionable at all and the full READY count. Free sample: one pick per lane and 3 candidates, buy score as a band, one market day delayed.

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  "type": "object",
  "properties": {},
  "additionalProperties": false
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{
  "title": "Buy list",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

One stock's Coil read, headline fields: its board-percentile band (top 5%, top 10%, top quartile, middle half or bottom quartile), entry window (READY or SETUP when the name is on its book's ranked pick list; otherwise the day board's state, such as WAIT, CHASE, BASING or FALLING, for names on the day board; null with a note when neither lists it), hold label, leadership flag, price move, trading days to the next earnings report and its book's regime. Covers any S&P 500, Nasdaq-100 or macro name, one symbol per call; unknown symbols return the valid-symbol directory. Free sample: one symbol per call, headline fields, one market day delayed.

{
  "type": "object",
  "required": [
    "symbol"
  ],
  "properties": {
    "symbol": {
      "type": "string",
      "description": "Ticker, e.g. NVDA"
    }
  },
  "additionalProperties": false
}

{
  "title": "Stock read",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Today's market leaders, ranked: the top 3 leadership names per book (US stocks and ETFs, plus the crypto book's coins) by opportunity score (names in confirmed uptrends carrying the market's strength), each with price, day change, opportunity percentile band and entry state. Includes the awareness block: sector money flows and coverage, with the count of coiled setups. Free sample: top 3 per book, headline fields, one market day delayed.

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  "properties": {},
  "additionalProperties": false
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{
  "title": "Market leaders",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Top 10 leadership names per book (US stocks and ETFs, plus the crypto book's coins) by opportunity score, recomputed on the intraday board. Includes the live awareness block: sector money flows, coiled setups with coil_score, coverage. Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Market leaders (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

One stock market sector's drill-down: the top 3 member stocks ranked by opportunity, the member count and a count of members by state, plus the sector's own ETF row. Accepts a sector name (e.g. 'Energy', 'Information Technology') or its ETF symbol (e.g. XLE, XLK); unknown values return the sector directory. Free sample: top 3 members, headline fields, one market day delayed.

{
  "type": "object",
  "required": [
    "sector"
  ],
  "properties": {
    "sector": {
      "type": "string",
      "description": "Sector name or sector-ETF symbol"
    }
  },
  "additionalProperties": false
}

{
  "title": "Sector read",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Bitcoin and Ethereum trend signal: the long-only state for each sleeve (LONG or CASH), the 50-day trend gate each trades on, and the BTC 200-day master gate that overrides both, evaluated on UTC daily closes with price and day change. A rules-based risk-on/risk-off verdict for crypto, not raw price data. Free; exactly one completed UTC close behind, evaluated every calendar day including weekends and stamped with the close used (signal_close_date).

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  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Crypto trend",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

The stock market read in one payload: regime verdict per book, today's top 3 ranked buy candidates, the biggest gainers and losers, the BTC/ETH crypto trend-gate state and a sample of the awareness read (the top 3 leaders and coiled setups, sector money flows in/out, coverage). Free sample: top 3 per list, headline fields, one market day delayed.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Morning brief",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Yesterday's day-trade state map: per-name intraday lights grid (price/RSI/MACD x 5m-1D), GO, FUEL vs anchor ETF, entry-window state and ROOM for 3 names plus 2 per cohort, with the cohort anchors and the reading guide. Day states decay in minutes, so this delayed tier is a schema/shape preview, not a trading input. Free sample: 3 names plus 2 per cohort, one market day delayed.

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  "type": "object",
  "properties": {},
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{
  "title": "Day board",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Sector and macro ROTATION map showing where the money is going. Each of ~50 sector ETFs and macro-book instruments (bond, income, metals and commodity ETFs plus a few single stocks such as the gold and copper miners) is scored on its ratio to SPY versus that ratio's 50-day and labelled GO (money already here), HOLDING (here but paused), TURNING (money arriving) or OUT (money left); the pre-bucketed lists carry the first 3 ETFs of each state with the state total and the first 5 rows carry symbol, kind, label and state. A state map, not a buy list; the payload's `reading` field notes that confirmed rotation is late for a pullback buyer. Free sample: 5 rows and the first 3 ETFs per state list, one market day delayed.

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  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Rotation map",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

24/7 crypto day-state PREVIEW: the top-3 of 81 Robinhood-tradable coins by trend rank, plus the board's BTC anchor, the daily BTC/ETH gate regime and breadth counts. A live trimmed slice of the full state map (trend distances, tape lights, ATR%, relative strength vs BTC, room, volume z-score, UP/CHOP/DOWN state per coin), not a delayed copy. A state map, not a ranking or advice. Free.

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  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Crypto day board",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Overnight crypto continuation PREVIEW: the #1 session-momentum coin (of the top-5) heading into the 20:00 UTC signal across 81 Robinhood-tradable coins, plus the BTC 200-day regime gate, the pre/post-signal phase and the pre-registered study receipts. The ranking beat its random null at every fee tier in the cold study; at Robinhood retail fees the studied trade was REFUTED (the refutation ships in the read). A state read, not advice. Free.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Crypto overnight read",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

THE SELL-SIDE READ: is the case for a name you already hold still intact, or deteriorating? Returns published trend state, the hold label, maturity-late flag, overnight gap-risk level, the book's regime, and watch_flags: which deterioration conditions are TRUE right now (structure light off green, leadership lost, mature leg, trend cold, high gap risk, earnings within 7 trading days), plus the mechanical rules those states flip on. BTC-USD / ETH-USD return the crypto IN|CASH daily-close state. Up to 3 comma-separated symbols. Reports conditions only; impersonal, it never reads your entry, size or account. Free sample: up to 3 symbols per call, headline fields, one market day delayed.

{
  "type": "object",
  "required": [
    "symbol"
  ],
  "properties": {
    "symbol": {
      "type": "string",
      "description": "Ticker, e.g. NVDA — or up to 3 comma-separated (NVDA,AMD,BTC-USD)"
    }
  },
  "additionalProperties": false
}

{
  "title": "Hold state",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Live intraday stock market regime, with the crypto book: the verdict, mode and permission ladder recomputed about every 5 minutes in market hours. Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

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  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Market regime (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

Live intraday ranked buy-list candidates among US stocks and ETFs (the crypto book lists coins) while their entry windows (READY/SETTING UP) are still open. Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Buy list (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

One stock's current-session scores and entry state, including the live coil read (coil_score / coil_kind / coil_note). Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "required": [
    "symbol"
  ],
  "properties": {
    "symbol": {
      "type": "string",
      "description": "Ticker, e.g. NVDA"
    }
  },
  "additionalProperties": false
}

{
  "title": "Stock read (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

A stock market sector's members scored and ranked from the current session. Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "required": [
    "sector"
  ],
  "properties": {
    "sector": {
      "type": "string",
      "description": "Sector name or sector-ETF symbol"
    }
  },
  "additionalProperties": false
}

{
  "title": "Sector read (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

Bitcoin and Ethereum trend signal (LONG or CASH per sleeve, 50-day trend gates, BTC 200-day master gate) on the newest completed UTC daily close, evaluated every calendar day including weekends and stamped with the close used (one close ahead of the free tier). Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Crypto trend (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

Stock market regime, top-5 candidates, movers and the crypto gate from the current session in one payload, including the live awareness read (leaders, money flows, coiled setups, coverage). Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Morning brief (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

LIVE day-trade state map (~5 min refresh in market hours): 18-cell lights grid, GO, FUEL vs the tab's anchor ETF, efficiency, ATR%, vs-SPY, entry-window state and ROOM (% + bars to the nearest overhead level) on ~70 liquid names. A STATE MAP, not a ranking; all-lit boards flag ext:true (late). Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Day board (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

X/SPY leadership states (GO / HOLDING / TURNING / OUT) for the 11 sector ETFs and every macro-book instrument (bond, income, metals and commodity ETFs plus a few single stocks such as the gold and copper miners), recomputed on the intraday board. The payload's `reading` field notes that confirmed rotation is late for a pullback buyer. Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Rotation map (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

The FULL 24/7 crypto day-state board: all 81 Robinhood-tradable coins with trend distances (20/50/200-day), multi-timeframe tape lights, ATR%, relative strength vs BTC, room to the 20-day high, volume z-score, mechanical UP/CHOP/DOWN state and cross-sectional ranks, plus the daily BTC/ETH gate and breadth. Publishes about every 5 minutes around the clock. A state map, not a ranking. Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Crypto day board (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

The FULL overnight continuation read: all top-5 session-momentum coins into the 20:00 UTC signal (81-coin Robinhood-tradable universe), the BTC 200-day regime gate state, the pre/post-signal phase clock, eligibility counts and the registered rule + study receipts (gross edge, null comparison, the retail-fee REFUTATION and breakeven bps, attached to every read). ~5-min refresh, 24/7. Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Crypto overnight read (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

What changed on the board since a stored state_hash: names that entered or left the READY candidate pool, per-name trend-state / light / leadership / hold-band flips, and any regime or permission-ladder move per book. Takes an optional `since`, a state_hash returned by an earlier call. When `since` is omitted it returns only the board's current state_hash and its as-of date. Access: free without `since` (no wallet, no key). With `since`: Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call; a call with neither returns a PaymentRequired object and no data. An unchanged `since` is answered free and never billed.

{
  "type": "object",
  "properties": {
    "since": {
      "type": "string",
      "description": "Optional. A state_hash (16 hex chars) returned by an earlier call; omit it to receive the current state_hash."
    }
  }
}

{
  "title": "Board changes",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

Crypto SETUP scan PREVIEW: how many of the 81 Robinhood-tradable coins currently show one of the two washed-shape SETUP patterns, plus the top-3 hits by grade with GO, fuel vs BTC and room. A live trimmed slice of the full scan. Shapes were backtest-confirmed on equities and are forward-graded on crypto; a descriptive marker, not advice. Free.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Crypto setups",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Scan of all 81 Robinhood-tradable coins for the two WASHED SETUP shapes (daily uptrend + washed-out 5-minute tape): every hit with GO, fuel multiple vs BTC, grade and room, plus the setup column for the full universe. Recomputed about every 5 minutes, 24/7. Shapes were backtest-confirmed on equities and are forward-graded on crypto (disclosed per read). Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "properties": {}
}

{
  "title": "Crypto setups (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

Live intraday SELL-SIDE read on names you already hold: current-session trend state, hold strength, readiness, maturity-late flag, gap-risk grade, book regime, and watch_flags naming which deterioration conditions are true right now. Up to 10 symbols per call. Reports conditions only; it never reads your entry or size. Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "required": [
    "symbol"
  ],
  "properties": {
    "symbol": {
      "type": "string",
      "description": "Ticker, e.g. NVDA — or up to 10 comma-separated (NVDA,AMD,BTC-USD)"
    }
  },
  "additionalProperties": false
}

{
  "title": "Hold state (live)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

The complete live board in one payload: every scored name (650+ across S&P 500, Nasdaq-100, macro), sector lanes, both buy-list lanes, regime and crypto books. Every name carries its coil read (coil_score / coil_kind / coil_note) and the payload carries the awareness block (leaders, sector flows, coiled, coverage). Fields are self-described in the payload's `schema` block (key · tier · description · since). Live intraday version. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Full board",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

Point-in-time archive: the scores Coil actually published on an archived date, sha256-committed before outcomes were known, append-only, never revised. Backtest-grade provenance. Without `date` it returns the list of archived dates. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data. Agents with an x402 wallet can also pay per call. Without a subscription or an x402 wallet it returns a PaymentRequired object and no data.

{
  "type": "object",
  "properties": {
    "date": {
      "type": "string",
      "description": "Archived date, YYYY-MM-DD; omit for the archive index"
    }
  },
  "additionalProperties": false
}

{
  "title": "Board as of a date",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

THE COIL LIVE FEED: the engine-grade board Coil's live record trades from, a superset of the complete live board that adds per-name structural stop and target levels, stop/target basis, risk-reward, buy_score, conviction, lane, leveraged vehicle and ladder placement (engine_fields, including coil_score / coil_kind). Optional symbols[] filter. Size, measured on ~800 names: unfiltered ≈1.35 MB (hundreds of thousands of tokens); a 2-name symbols read ≈70 KB; the same read with compact=true ≈12 KB; compact=true for the whole board ≈350 KB. Optional fields[] picks engine fields; limit and cursor page the names by symbol. Refreshed about every 5 minutes in market hours; identical for every subscriber; research, not advice. Engine fields are self-described in the payload's `schema` block (key · tier · description · since; omitted when compact=true). Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data.

{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "maximum": 1000,
      "minimum": 1,
      "description": "Optional: page size, names per page (sorted by symbol). The response carries page.next_cursor."
    },
    "cursor": {
      "type": "string",
      "description": "Optional: the page.next_cursor from the previous page (the last symbol returned). Omit for the first page."
    },
    "fields": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Optional: keep only these engine_fields keys per name (e.g. [\"stop\",\"target\",\"rr\"]). Unknown keys are echoed in unknown_fields. With compact=true this replaces the core engine-field set."
    },
    "compact": {
      "type": "boolean",
      "description": "Optional, default false (the full payload, unchanged). true = core fields only: names[] and engine_fields[] keep the core keys, and the fixed context blocks (schema, rotation, awareness, perf, pair_rotation, books beyond regime, day rows/cohorts) are dropped. candidates[], freshness and rules_version always ride."
    },
    "symbols": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Optional: trim names + engine_fields to these tickers (max 50)"
    }
  },
  "additionalProperties": false
}

{
  "title": "Engine feed",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

The Coil Live served rulebook (versioned): cycle order, exits-first, stop derivation, day-lane rhythm, sizing and fail-closed rules for the engine-grade feed. The payload states when rules changed. Coil Live is a subscription with a 7-day free trial; subscribers connect the Coil Live connector and sign in, and this read returns live data.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Live rules",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

Coil Live connection details: what the subscription unlocks (every live-tier read without per-call payment, the engine feed and the live rulebook), how the license key is sent, the recommended polling cadence, and what happens fail-closed if the subscription lapses. Free; no key needed.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Live setup",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Storefront: search Coil's two products (Coil Scanner, Coil Live). Returns product families with a from-price and their billing variants.

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "limit": {
      "type": "integer"
    },
    "query": {
      "type": "string"
    }
  },
  "additionalProperties": false
}

{
  "title": "Search products",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Storefront: one product family with every billing variant, price, access terms and merchant of record.

{
  "type": "object",
  "required": [
    "product_id"
  ],
  "properties": {
    "product_id": {
      "type": "string"
    }
  },
  "additionalProperties": false
}

{
  "title": "Product details",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Storefront: the session's cart (X-Session-Id / Mcp-Session-Id).

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "View cart",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Storefront: add a billing variant (e.g. coil-scanner-monthly). One licence per person, quantity 1.

{
  "type": "object",
  "required": [
    "product_id"
  ],
  "properties": {
    "quantity": {
      "type": "integer"
    },
    "product_id": {
      "type": "string"
    }
  },
  "additionalProperties": false
}

{
  "title": "Add to cart",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Storefront: set a line's quantity (0 removes; anything above 1 is held at 1).

{
  "type": "object",
  "required": [
    "product_id",
    "quantity"
  ],
  "properties": {
    "quantity": {
      "type": "integer"
    },
    "product_id": {
      "type": "string"
    }
  },
  "additionalProperties": false
}

{
  "title": "Update cart item",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Storefront: remove a line.

{
  "type": "object",
  "required": [
    "product_id"
  ],
  "properties": {
    "product_id": {
      "type": "string"
    }
  },
  "additionalProperties": false
}

{
  "title": "Remove from cart",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Storefront: the hosted checkout link for each cart line (Gumroad, merchant of record; promo code applied while a sale is live). The person completes payment there; nothing is charged by this tool.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Checkout link",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Storefront: returns the short shopping preferences stored for this MCP session's cart (up to 40 entries, each with key, value and category), kept one day and scoped to this MCP session. It is not a conversation history. Access: free, no key.

{
  "type": "object",
  "properties": {
    "skill_name": {
      "type": "string",
      "maxLength": 64,
      "description": "Optional label naming the shopping skill that is reading; it does not filter or change the result."
    }
  },
  "additionalProperties": false
}

{
  "title": "Recall memories",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Storefront: stores one short shopping preference for this session's cart, for example which product or billing period the shopper prefers. Coil stores it keyed to this MCP session (Mcp-Session-Id), scoped to this MCP session only, keeps it one day and then deletes it; without a session nothing is stored; a repeated key replaces its value and at most 40 entries are kept. It is not conversation storage. Access: free, no key.

{
  "type": "object",
  "required": [
    "key",
    "value"
  ],
  "properties": {
    "key": {
      "type": "string",
      "maxLength": 64,
      "description": "Short name of the preference, e.g. billing_period (1-64 characters)."
    },
    "value": {
      "type": "string",
      "maxLength": 280,
      "description": "The preference itself, e.g. yearly (1-280 characters)."
    },
    "category": {
      "type": "string",
      "maxLength": 32,
      "description": "Optional grouping label, e.g. billing (up to 32 characters)."
    }
  },
  "additionalProperties": false
}

{
  "title": "Save memory",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Storefront: refunds, cancellation, delivery, merchant of record, risk disclosures, privacy, current promotion.

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "query": {
      "type": "string"
    },
    "product_ids": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  },
  "additionalProperties": false
}

{
  "title": "Search policies",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Storefront: digital delivery — instant, no fee.

{
  "type": "object",
  "required": [
    "product_ids"
  ],
  "properties": {
    "product_ids": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  },
  "additionalProperties": false
}

{
  "title": "Fulfillment options",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

The Coil Edge Research index: every published backtest study with its question, pre-registered verdict, evidence class, data window and per-read price, plus the address of each full paid text. Free and keyless; the studies themselves are sold one read at a time over x402.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Research studies",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Advertised by the server during the last successful anonymous check.

How the US stock market is set up today.

No arguments advertised.

Advertised by the server during the last successful anonymous check.

Whether one stock is a buy, a wait or a chase right now.

symbol

Ticker symbol, for example NVDA (required)

Advertised by the server during the last successful anonymous check.

Which sectors are leading and which stocks lead them.

No arguments advertised.

Advertised by the server during the last successful anonymous check.

Whether Bitcoin is in an uptrend or in cash.

No arguments advertised.

Advertised by the server during the last successful anonymous check.

What Coil has published in its research studies.

No arguments advertised.