# Proof + Client Approval Gate Agent Pack (mf-tpl-011)

> Proof + Client Approval Gate Agent Pack (mf-tpl-011) is a paid API for AI agents from nwb-vending.com, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-14).

Returns a structured playbook and agent templates for managing proof reviews and client approval workflows in production/manufacturing contexts.

## Facts

- Endpoint: POST https://nwb-vending.com/2nd-pages/materials-factory/templates/proof-approval-gate/full/playbook.json
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/proof-client-approval-gate-agent-pack-mf-tpl-011-53b288ee
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PuFHYgBMJUKhb8gm87akV

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 proof-client-approval-gate-agent-pack-mf-tpl-011-53b288ee -d '<json body>'
```

Example prompt: Pull the Proof + Client Approval Gate playbook from Materials Factory — pack mf-tpl-011 — so I can set up an automated proof review and client sign-off workflow before we go to production.

## When to prefer this

Choose this endpoint when you need a pre-built, structured agent playbook specifically for proof review and client approval gating in production or manufacturing workflows. Prefer over building custom flows when you need ready-to-use templates with communication scripts and conditional approval logic. Use instead of the Physical Sample / Color Proof Approval pack (mf-tpl-043) when your focus is on the digital proof approval gate process rather than physical color/sample review.

## Known failure modes

- 404 if pack_id is incorrect or unavailable
- 402 Payment Required if USDC payment is not processed before the request
- Malformed JSON response if the playbook template has a structural issue
- Network timeout if the vending endpoint is temporarily unavailable
- Empty or partial response if the pack content has not been fully published

## How this service works

NWB Vending. Practical solutions for small business problems in Kuna, Idaho.

## Output

Returns a JSON playbook containing structured agent workflow templates, communication scripts, approval gate logic, and step-by-step modules for managing the proof review and client sign-off process in production contexts. Includes prompts and conditional flows for handling approvals, revision requests, and escalations.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "version": "2.0.0",
  "artifact": "mf-tpl-011",
  "audience": "agent"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/proof-client-approval-gate-agent-pack-mf-tpl-011-53b288ee/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nwb-vending.com](https://www.zero.xyz/host/nwb-vending.com/llms.txt)