# Smartmoney Fund Quarter-over-Quarter 13-F Changes

> Smartmoney Fund Quarter-over-Quarter 13-F Changes is a paid API for AI agents from x402.smartmoney.market, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns quarter-over-quarter 13-F position changes for a tracked hedge fund, including new buys, exits, increases, decreases, position deltas, and Form 4 smart-money updates.

## Facts

- Endpoint: GET https://x402.smartmoney.market/api/fund/:slug/changes
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-smartmoney-market-e964bb7b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AKwcrA47WkVbepf0Vieak

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 x402-smartmoney-market-e964bb7b
```

Example prompt: Pull up the latest quarter-over-quarter 13-F changes for Duquesne Capital — I want to see their new buys, exits, and any position increases or decreases from the most recent filing.

## When to prefer this

Use this endpoint when you need quarter-over-quarter change data for a specific hedge fund identified by its slug — not just the current snapshot but the delta between filing periods. Prefer this over the general fund holdings endpoint when the user specifically wants to know what changed (new buys, exits, size changes) rather than the current portfolio composition.

## Known failure modes

- Invalid or unrecognized fund slug returns 404 or empty result
- Fund not tracked in Smartmoney's universe returns no data
- 13-F data not yet filed for the current quarter returns stale or empty results
- Payment failure (insufficient USDC balance) returns 402 error
- Rate limiting or network timeout returns 5xx error

## How this service works

Quarter-over-quarter 13-F changes for one tracked fund: new buys, exits, increases, decreases, position deltas, and fund-side Form 4 smart-money updates.

## Output

A structured response containing quarter-over-quarter 13-F portfolio changes for the specified fund, including lists of new stock buys, complete exits, position size increases and decreases, numeric position deltas (shares/market value), and any fund-side Form 4 smart-money insider activity updates for the current quarter.

## 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"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "slug"
     ],
     "properties": {
      "slug": {
       "type": "string",
       "description": "Smartmoney fund slug, for example duquesne."
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-smartmoney-market-e964bb7b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.smartmoney.market](https://www.zero.xyz/host/x402.smartmoney.market/llms.txt)