# Halowerk Relaunch Successor Inventory Counter

> Halowerk Relaunch Successor Inventory Counter is a paid API for AI agents from detect.halowerk.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-19).

Counts old inventory items that have no declared successor or whose successor is of a different function kind, to support relaunch planning.

## Facts

- Endpoint: POST https://detect.halowerk.com/v1/relaunch/relaunch-successor-inventory?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-relaunch-successor-inventory-counter-25767553
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XttTvDtRLaeo_2mpT_znI

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 halowerk-relaunch-successor-inventory-counter-25767553 -d '<json body>'
```

Example prompt: I'm planning a product relaunch and need to know how many of our old inventory items either have no declared successor at all or have a successor that's a completely different kind — can you count those for me given the before list, after list, and successors mapping I have?

## When to prefer this

Choose this endpoint when you are orchestrating a relaunch workflow and need a precise numeric signal of inventory coverage gaps — specifically items with absent or kind-mismatched successors — rather than a full diff or URL-collision check. It is distinct from sibling endpoints that handle URL normalization collisions or state reachability.

## Known failure modes

- Missing required artifact fields (before, after, successors) returns a 400 validation error
- Items exceeding maxItems (2048) may be truncated or rejected
- Malformed id or kind fields may cause item to be skipped or error
- Empty before array returns zero counts trivially
- Successors map with unrecognized keys may produce unexpected counts
- Payment failure or insufficient USDC balance returns 402

## How this service works

An agent that plans a relaunch needs counts of old inventory items with no declared successor or a successor of a different declared function kind.

## Output

Returns counts of old (before) inventory items that either have no declared successor entry or have a successor whose declared function kind differs from the original item's kind, enabling relaunch planners to quantify coverage gaps and kind-shift anomalies.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "artifact": {
   "type": "object",
   "required": [
    "before",
    "after",
    "successors"
   ],
   "properties": {
    "after": {
     "type": "array",
     "items": {
      "type": "object",
      "required": [
       "id",
       "kind"
      ],
      "properties": {
       "id": {
        "type": "string",
        "maxLength": 16384
       },
       "kind": {
        "type": "string",
        "maxLength": 16384
       }
      },
      "additionalProperties": true
     },
     "maxItems": 2048
    },
    "before": {
     "type": "array",
     "items": {
      "type": "object",
      "required": [
       "id",
       "kind"
      ],
      "properties": {
       "id": {
        "type": "string",
        "maxLength": 16384
       },
       "kind": {
        "type": "string",
        "maxLength": 16384
       }
      },
      "additionalProperties": true
     },
     "maxItems": 2048
    },
    "successors": {
     "type": "object",
     "additionalProperties": true
    }
   },
   "additionalProperties": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-relaunch-successor-inventory-counter-25767553/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from detect.halowerk.com](https://www.zero.xyz/host/detect.halowerk.com/llms.txt)