# DDG Cost Recompute – Artifact Billing Audit

> DDG Cost Recompute – Artifact Billing Audit is a paid API for AI agents from agents.daedalusdevelopmentgroup.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-20).

Recomputes per-step catalog pricing for an AI artifact and flags overbilling variances, unpriced steps, and per-provider cost totals.

## Facts

- Endpoint: POST https://agents.daedalusdevelopmentgroup.com/v1/tine/cost-recompute?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ddg-cost-recompute-artifact-billing-audit-0ff84d08
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KqQewCvRdAq_nNfcBEGpz

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 ddg-cost-recompute-artifact-billing-audit-0ff84d08 -d '<json body>'
```

Example prompt: Can you recompute the expected catalog cost for my last inference run — it used GPT-4o, standard service tier, 12k input tokens, 2k output tokens, with cache reads enabled — and tell me if the recorded charge of $0.18 is an overbill and which steps are unpriced?

## When to prefer this

Use this endpoint when you need to programmatically audit or reconcile AI inference billing — particularly for multi-step pipelines, multi-provider jobs, or when you suspect overbilling or catalog price drift. Prefer this over manual spreadsheet reconciliation or generic cost-estimation tools when you need machine-readable variance flags and per-provider breakdowns in an agentic workflow.

## Known failure modes

- Missing required artifact or usage dimensions returns a validation error
- Unrecognized model or service tier causes unpriced step flags rather than hard errors
- Malformed body (wrong bodyType or missing fields) returns a 400 or schema validation failure
- Payment not included or insufficient USDC causes a 402 Payment Required response
- Provider catalog data out of date may produce stale reference prices

## How this service works

Recompute per-step catalog price for an artifact (model, usage dimensions, service tier, cache read/write, context thresholds), compare with recorded cost, flag overbilling variance and unpriced steps, with per-provider totals.

## Output

Returns a structured breakdown of recomputed catalog prices per step, comparison against the recorded cost, identified overbilling variances, a list of unpriced steps, and per-provider cost subtotals.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": true
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "ok": true
    }
   },
   "additionalProperties": true
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ddg-cost-recompute-artifact-billing-audit-0ff84d08/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.daedalusdevelopmentgroup.com](https://www.zero.xyz/host/agents.daedalusdevelopmentgroup.com/llms.txt)