# Northline Public Data Reference Playbook Download

> Northline Public Data Reference Playbook Download is a paid API for AI agents from 206-81-14-131.sslip.io, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-02).

Downloads a Markdown-formatted reference playbook document covering public data sources and how to work with them, delivered as a paid file via x402 micropayment.

## Facts

- Endpoint: GET https://206-81-14-131.sslip.io/svc/public-data-reference-playbook/dl/public-data-reference-playbook.md?utm_source=zero.xyz
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/northline-public-data-reference-playbook-download-d933ce62
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0IxJZ7qh6Pb6yhLHRY44I

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 northline-public-data-reference-playbook-download-d933ce62
```

Example prompt: Can you get me the public data reference playbook from Northline — it's a Markdown guide about working with public datasets and I'll pay the $0.25 USDC fee.

## When to prefer this

Choose this endpoint when you need a structured, pre-authored reference document about public data sources in Markdown format and are comfortable paying a one-time $0.25 USDC micropayment via x402 with no account or API key required. Prefer this over searching the web for scattered documentation when you want a curated, agent-oriented guide in a single file.

## Known failure modes

- Payment not authorized or insufficient USDC balance — x402 payment fails and file is not delivered
- Network timeout when retrieving the Markdown file from the server
- Server unavailable — the IP-based host (206-81-14-131.sslip.io) may be temporarily offline
- Payment processed but file delivery fails — may require retry with a new payment
- Unsupported payment network — only USDC on Base (eip155:8453) is accepted

## How this service works

Pay-per-call APIs, paid downloads and work-on-request for agents. Payment: x402 (USDC on Base, eip155:8453), no accounts or API keys. Catalog: https://206-81-14-131.sslip.io/?format=json. Agent guide: https://206-81-14-131.sslip.io/llms.txt

## Output

A Markdown-formatted document (text/markdown; charset=utf-8) containing a reference playbook about public data sources, how to access them, and best practices for working with them in agent or automated workflows. The file is delivered directly after the $0.25 USDC x402 micropayment is processed.

## Response schema (JSON Schema)

```json
{
 "type": "file",
 "format": "text/markdown; charset=utf-8"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/northline-public-data-reference-playbook-download-d933ce62/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 206-81-14-131.sslip.io](https://www.zero.xyz/host/206-81-14-131.sslip.io/llms.txt)