# holdings-changes

> holdings-changes is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns quarter-over-quarter changes in an institutional manager's 13F portfolio, bucketing every position as new, added, reduced, sold out, or unchanged with share and dollar deltas.

## Facts

- Endpoint: GET https://payai.agentstools.dev/holdings/changes
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/holdings-changes-abc47ead
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Hce0BnKmy3dtZP1RtvxM-

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 holdings-changes-abc47ead
```

Example prompt: Pull the quarter-over-quarter 13F portfolio changes for Berkshire Hathaway — I want to see every position bucketed as new, added, reduced, or sold out, along with the share and dollar deltas for the latest available quarter.

## When to prefer this

Choose this endpoint when you need position-level, quarter-over-quarter delta analysis from SEC Form 13F filings — specifically the bucketing of positions into new/added/reduced/sold-out/unchanged categories with precise share and dollar deltas. Prefer this over raw EDGAR scraping when you want pre-computed change attribution and a net flow summary without building your own comparison logic. Best suited for hedge fund monitoring, portfolio drift analysis, and institutional investor research workflows.

## Known failure modes

- Manager name not resolved — CIK not found for provided name string; recommendation to supply CIK directly
- No 13F filing found for the specified CIK or quarter — fund may not be a 13F filer or filing is not yet available
- Only one filing available — cannot compute quarter-over-quarter change if a prior quarter filing doesn't exist
- Invalid quarter date format — must be ISO YYYY-MM-DD period-end date
- Rate limiting or payment failure via x402 protocol at $0.05 USDC per call

## How this service works

Quarter-over-quarter change of an institutional manager's Form 13F portfolio. Give a CIK or name and get every position bucketed as new, added, reduced, sold out or unchanged, with per-position share and dollar deltas and a net flow summary, from two consecutive 13F filings, cited to both.

## Output

A structured report containing every position from two consecutive 13F filings, each labeled as new, added, reduced, sold out, or unchanged, with per-position share count delta and dollar value delta, plus a net flow summary and citations to both underlying 13F filings.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "cik": {
       "type": "string",
       "description": "SEC EDGAR filer CIK, any zero-padding accepted"
      },
      "name": {
       "type": "string",
       "description": "Manager name (best-effort resolve; supply cik if not found)"
      },
      "quarter": {
       "type": "string",
       "description": "Quarter period-end date, ISO YYYY-MM-DD (default latest)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/holdings-changes-abc47ead/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from payai.agentstools.dev](https://www.zero.xyz/host/payai.agentstools.dev/llms.txt)