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Northline Crypto Prices API
x402
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.
Price / call$0.003
Success—
StatusUnknown
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).
Example use cases
Live portfolio valuation for a DeFi agent
“What are the current prices of BTC, ETH, and SOL so I can calculate my portfolio value right now?”
Crypto price alert trigger
“Check the current price of Bitcoin and tell me if it's above $70,000.”
On-demand price feed for a trading bot
“Fetch the latest crypto prices for the assets I'm watching — BTC, ETH, and MATIC — using a micropayment, no API key needed.”
Technical details
Endpoint
GEThttps://206-81-14-131.sslip.io/svc/crypto-prices/prices?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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