# StockTrends ST-IM Selection Universe (Latest, Unfiltered)

> StockTrends ST-IM Selection Universe (Latest, Unfiltered) is a paid API for AI agents from api.stocktrends.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Returns the latest ST-IM (Stock Trends Inference Model) selection universe ranked by 13-week forward probability descending, without the published STIM Select threshold filter applied.

## Facts

- Endpoint: GET https://api.stocktrends.com/v1/selections/latest
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-stocktrends-com-e302ae36
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UTQ6n2w8l7VaHFSa6sQn0

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability api-stocktrends-com-e302ae36
```

Example prompt: Pull the latest Stock Trends ST-IM selection universe ranked by prob13wk, limit to 500 results, NYSE only, and include the full data fields.

## When to prefer this

Use this endpoint when you need the full, unfiltered ST-IM selection universe ranked by 13-week forward probability — particularly when you want to apply your own probability threshold rather than the published STIM Select cutoff. Prefer this over per-symbol ST-IM endpoints when screening across the entire universe or building a custom ranked watchlist. Prefer over the portfolio construction endpoint when you want raw ranked candidates rather than an equal-weight portfolio.

## Known failure modes

- Invalid exchange code returns 400 bad request
- limit exceeding 20000 returns validation error
- min_prob13wk outside valid range returns error
- Payment not provided or insufficient returns 402 Payment Required
- No data available for the latest selection cycle returns empty result set

## How this service works

Latest base ST-IM selection universe ranked by prob13wk descending, without the published STIM Select threshold filter.

## Output

A JSON list of stocks from the ST-IM selection universe ranked by prob13wk (13-week forward return probability) in descending order, without the published STIM Select threshold filter. Each entry includes the symbol, probability score, and optionally full ST-IM data fields and master data depending on query flags. Can be filtered by exchange (N/Q/A/B/T/I), minimum prob13wk, and whether to restrict to common stocks only.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "limit": 500,
   "cs_only": true,
   "exchange": "N",
   "include_data": true,
   "include_mast": false
  }
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "limit": {
       "type": "integer",
       "default": 2000,
       "maximum": 20000,
       "minimum": 1
      },
      "cs_only": {
       "type": "boolean",
       "default": true
      },
      "exchange": {
       "enum": [
        "N",
        "Q",
        "A",
        "B",
        "T",
        "I"
       ],
       "type": "string"
      },
      "include_data": {
       "type": "boolean",
       "default": false
      },
      "include_mast": {
       "type": "boolean",
       "default": false
      },
      "min_prob13wk": {
       "type": "number"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "title": {
   "type": "string"
  },
  "family": {
   "type": "string"
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "format": {
     "type": "string"
    },
    "example": {}
   },
   "description": "Latest base ST-IM selection universe ranked by prob13wk descending.",
   "additionalProperties": true
  },
  "category": {
   "type": "string"
  },
  "schemaUrl": {
   "type": "string"
  },
  "description": {
   "type": "string"
  },
  "metadataUrl": {
   "type": "string"
  },
  "tools_manifest": {
   "type": "string"
  },
  "pricing_catalog": {
   "type": "string"
  }
 },
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-stocktrends-com-e302ae36/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.stocktrends.com](https://www.zero.xyz/host/api.stocktrends.com/llms.txt)