zdte.ai SPX Market Structure

Current computed SPX dealer market structure (walls, gamma flip, net GEX, regime), recomputed ~every 10s during market hours: scored pressure-point strike ladder, implied 50%/80% forecast-band ranges, strike activity (volume/OI), and VIX term-structure context. Also the 0DTE ATM-straddle expected move and its session fence, max pain, the running session open/high/low with the prior close and gap, order-flow measurements, a top-10 net-GEX strike profile, and chain vanna/charm totals with a top-10 strike ladder. Realtime requires a funded API key, no website account needed: call create_guest_key, then create_credit_checkout, then get_credit_balance (account holders can also buy at https://zdte.ai/agent/credits); without a key this serves a delayed headline preview only (regime, spot, walls, gamma flip, net GEX). Data only -- not investment advice or a trade recommendation.

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

Current SPX dealer regime label + confidence only. Realtime with an X-API-Key; without a key this serves a delayed preview.

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

Free catalog of available historical SPX market-structure replay dates. No API key required; actual replay datasets are paid.

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

Per-day SPX market-structure timeline + summary for one replay date (YYYY-MM-DD). Data only -- not investment advice or a trade recommendation.

{
  "type": "object",
  "properties": {
    "date": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "description": "Replay date in YYYY-MM-DD; use list_history_dates for the set of valid dates."
    }
  },
  "required": [
    "date"
  ],
  "additionalProperties": false
}

Compressed dealer-regime segment tape for one replay date (YYYY-MM-DD).

{
  "type": "object",
  "properties": {
    "date": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "description": "Replay date in YYYY-MM-DD; use list_history_dates for the set of valid dates."
    }
  },
  "required": [
    "date"
  ],
  "additionalProperties": false
}

Subscribe a callback URL to a market-structure event (zero_gamma_flip | new_wall | regime_transition).

{
  "type": "object",
  "properties": {
    "event": {
      "type": "string",
      "enum": [
        "zero_gamma_flip",
        "new_wall",
        "regime_transition"
      ],
      "description": "Which market-structure event to subscribe to: zero_gamma_flip, new_wall, or regime_transition."
    },
    "callback_url": {
      "type": "string",
      "description": "HTTPS URL that receives a POST when the event fires."
    }
  },
  "required": [
    "event",
    "callback_url"
  ],
  "additionalProperties": false
}

Remove an event subscription by id.

{
  "type": "object",
  "properties": {
    "subscription_id": {
      "type": "string",
      "description": "The subscription id returned by subscribe_event."
    }
  },
  "required": [
    "subscription_id"
  ],
  "additionalProperties": false
}

List this agent's active event subscriptions.

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

Static, versioned dictionary of every field this surface emits: unit, value set where the producer has one, and a one-sentence meaning, plus the shared response conventions (tier, delay, timestamps, and how missing data is reported). No inputs; call once per session.

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

Free pricing and accountless access instructions. Start here; no website account required.

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

Create a zero-credit API key, returned once, and save it securely. When the response says connection_authenticated, this MCP session is already using the key: continue with create_credit_checkout. Otherwise, and for new connections, configure HTTP Authorization: Bearer and reconnect. No arguments.

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

Free balance check for the API key in this connection's HTTP header. Never pass a key as an argument.

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

Create a Stripe Checkout link for the authenticated key. Does not charge or fund until payment is authorized and confirmed. Return and check get_credit_balance.

{
  "type": "object",
  "properties": {
    "credits": {
      "type": "integer",
      "minimum": 100,
      "maximum": 1000000,
      "description": "Whole number of credits to buy, within the published minimum and maximum purchase. Each credit costs credit_unit_price_cents (see get_access_options); the checkout total is credits times that price."
    }
  },
  "required": [
    "credits"
  ],
  "additionalProperties": false
}