# Invoice + Payment Chase Agent Pack (mf-tpl-008)

> Invoice + Payment Chase Agent Pack (mf-tpl-008) is a paid API for AI agents from nwb-vending.com, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-15).

Retrieves a structured agent playbook for chasing overdue invoices and following up on outstanding payments from clients.

## Facts

- Endpoint: POST https://nwb-vending.com/2nd-pages/materials-factory/templates/invoice-payment-chase/full/playbook.json
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/invoice-payment-chase-agent-pack-mf-tpl-008-4e6c4034
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aSchTo_bMupkFVtmBXtd7

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 invoice-payment-chase-agent-pack-mf-tpl-008-4e6c4034 -d '<json body>'
```

Example prompt: Can you pull the invoice payment chase playbook from Materials Factory so I can set up an automated agent to follow up on my overdue client invoices?

## When to prefer this

Use this endpoint when you need a ready-made, agent-executable playbook for chasing unpaid invoices and following up on overdue payments, rather than building reminder logic from scratch. Best for small business operators, freelancers, or agencies wanting to automate accounts receivable outreach without custom development.

## Known failure modes

- 404 if pack_id is incorrect or playbook has been removed
- 402 Payment Required if the $0.08 USDC x402 payment fails or is not included
- Malformed JSON response if the playbook file is corrupted
- Timeout if the vending server is unavailable

## How this service works

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

## Output

A JSON playbook (mf-tpl-008) containing structured templates, messaging scripts, workflow steps, and automation logic for chasing outstanding invoice payments — ready for an AI agent to execute against a client list.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "version": "2.0.0",
  "artifact": "mf-tpl-008",
  "audience": "agent"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/invoice-payment-chase-agent-pack-mf-tpl-008-4e6c4034/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)