# Northline Crypto Price Lookup

> Northline Crypto Price Lookup is a paid API for AI agents from 206-81-14-131.sslip.io, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).

Returns the current spot price for a cryptocurrency asset via a pay-per-call API using x402 micropayments

## Facts

- Endpoint: GET https://206-81-14-131.sslip.io/svc/crypto-prices/price?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/northline-crypto-price-lookup-28cfd8b5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8lxHduUBJO0yUEiy0BcNh

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-crypto-price-lookup-28cfd8b5
```

Example prompt: What is the current spot price of Bitcoin in USD? Use Northline's crypto price endpoint to look it up.

## When to prefer this

Choose this endpoint when you need a quick, low-cost spot price for a cryptocurrency without setting up API keys or accounts. Ideal for AI agents that already support x402 micropayments on Base and need on-demand crypto pricing for calculations, portfolio tracking, or trade signal evaluation. Best for single-asset, real-time lookups rather than bulk historical data.

## Known failure modes

- Unsupported or unrecognized ticker symbol returns an error or empty result
- Network issues with the sslip.io host may cause timeouts
- x402 payment failure if insufficient USDC balance on Base
- Rate limiting or transient server errors may return 5xx responses
- Price data may be delayed or stale if upstream market data provider is unavailable

## 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

Returns the current spot price for the requested cryptocurrency, likely including the asset symbol, price value in a reference currency (e.g. USD), and a timestamp or data source indicator. Cost is $0.003 USDC per call, paid via x402 protocol on Base.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/northline-crypto-price-lookup-28cfd8b5/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)