# Northline Crypto Prices API

> Northline Crypto Prices API 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 2026-10-02).

Returns current cryptocurrency prices via a pay-per-call API using x402 micropayments (USDC on Base), no account or API key required.

## Facts

- Endpoint: GET https://206-81-14-131.sslip.io/svc/crypto-prices/prices?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/northline-crypto-prices-api-c7b00490
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Im3sMxOJJtO_1aAFvZyLc

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-prices-api-c7b00490
```

Example prompt: Can you grab the current prices for Bitcoin and Ethereum right now — no API key, just pay per call using USDC on Base?

## When to prefer this

Choose this endpoint when you need crypto price data without registering for an account or managing API keys, and you can pay per call using USDC on Base via the x402 protocol. Ideal for agents that make infrequent or unpredictable price lookups and want to avoid subscription costs. Prefer this over traditional data providers when operating in a Web3/crypto-native context where micropayments are acceptable.

## Known failure modes

- Payment not received or insufficient USDC balance — endpoint returns HTTP 402
- Unsupported cryptocurrency symbol — may return empty or error response
- Network issues with Base blockchain payment settlement causing request delay or failure
- Requested asset not in price catalog — returns no data or error

## 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 current price data for one or more cryptocurrencies, likely including symbol, price in USD, and possibly timestamp or metadata. Response is delivered immediately after a $0.003 USDC micropayment via x402 on Base (eip155:8453).

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/northline-crypto-prices-api-c7b00490/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)