# Northline Currency Rates Sample

> Northline Currency Rates Sample is a paid API for AI agents from 206-81-14-131.sslip.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).

Returns a sample of current foreign exchange currency rates via pay-per-call API with no account or API key required

## Facts

- Endpoint: POST https://206-81-14-131.sslip.io/svc/currency-rates/sample?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/northline-currency-rates-sample-004f461d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nSBs9AWw73KWZnoXdh2Tu

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-currency-rates-sample-004f461d -d '<json body>'
```

Example prompt: Can you grab a sample of the current foreign exchange currency rates — I need to see what rates look like right now for USD, EUR, and a few other major currencies, no API key needed?

## When to prefer this

Choose this endpoint when you need lightweight, pay-per-use FX rate lookups without the overhead of registering for a traditional API key. Ideal for AI agents that need occasional currency rate data for financial calculations, invoice generation, or payment conversion checks, especially when paying with USDC on Base via x402. Best for low-volume, on-demand lookups rather than high-frequency streaming FX data.

## Known failure modes

- Payment not included or insufficient USDC balance — returns 402 Payment Required
- Invalid or unsupported currency codes in request — may return empty or error response
- Network timeout or service unavailability — returns 5xx error
- Malformed POST body — returns 400 Bad Request

## 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 sample dataset of current foreign exchange rates, likely including rate values for multiple currency pairs with timestamps, returned as structured data (JSON). No API key or account required; payment is $0.005 USDC per call via the x402 protocol on Base.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/northline-currency-rates-sample-004f461d/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)