NexusGTO API

The NexusGTO API provides programmatic access to the world's first 6-player poker solver. All endpoints accept and return JSON. The base URL for all requests is:

https://api.nexusgto.com/v1

All API responses follow a consistent envelope format:

{
  "success": true,
  "data": { ... },
  "meta": {
    "request_id": "req_abc123",
    "latency_ms": 42
  }
}

Authenticate requests by including your API key in the Authorization header:

curl https://api.nexusgto.com/v1/preflop/UTG \
  -H "Authorization: Bearer ngto_sk_your_api_key"

API keys are scoped to your organization and can be rotated at any time from the dashboard. Keys prefixed with ngto_sk_test_ hit the sandbox environment; ngto_sk_live_ hits production.

Returns the complete GTO strategy for a given position at the specified decision point. Response includes 169 hands with per-action frequencies and optional EV data.

Path Parameters

Query Parameters

Example Request

curl https://api.nexusgto.com/v1/preflop/UTG \
  -H "Authorization: Bearer ngto_sk_test_demo"

Example Response

{
  "success": true,
  "data": {
    "position": "UTG",
    "actions": ["fold", "call", "raise_2.2", "raise_3.5", "allin"],
    "strategies": [
      {
        "hand": "AA",
        "actions": [
          { "action": "raise_2.2", "frequency": 0.85 },
          { "action": "raise_3.5", "frequency": 0.12 },
          { "action": "allin", "frequency": 0.03 }
        ]
      },
      {
        "hand": "AKs",
        "actions": [
          { "action": "raise_2.2", "frequency": 0.92 },
          { "action": "raise_3.5", "frequency": 0.08 }
        ]
      }
    ]
  }
}

Runs a real-time postflop CFR solve for the given board, ranges, and pot geometry. Returns strategies for all active positions. Typical latency: 50–200ms depending on tree complexity.

Request Body

{
  "board": "AhKsTd",
  "positions": ["BTN", "BB"],
  "pot": 6.5,
  "stacks": { "BTN": 97, "BB": 93.5 },
  "ranges": {
    "BTN": { "AA": 1.0, "AKs": 0.92, "AKo": 0.85 },
    "BB": { "AA": 0.15, "AKs": 0.70, "72o": 0.02 }
  }
}

Example Response

{
  "success": true,
  "data": {
    "BTN": {
      "strategies": [
        {
          "hand": "AA",
          "actions": [
            { "action": "check", "frequency": 0.35 },
            { "action": "raise", "frequency": 0.65, "size": "75%" }
          ]
        }
      ]
    },
    "BB": { "strategies": [...] }
  },
  "meta": { "latency_ms": 87, "iterations": 500 }
}

Parses a hand history file or text block and returns structured data including player actions, pot sizes, and board cards. Supports PokerStars, 888poker, GGPoker, and Winamax formats.

Request Body

{
  "text": "PokerStars Hand #123456789: ..."
}

Or send a file via multipart/form-data with the file in the file field.

API access is billed separately from the consumer product. All plans include preflop lookups. Postflop solving is metered.

All plans include dedicated support and 99.9% uptime SLA (Pro and above). Enterprise includes custom bet sizing trees, dedicated compute, and a named account manager.

The NexusGTO API is currently in private beta. We're onboarding poker training platforms, poker rooms, and coaching tools on a rolling basis.