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Northline Agent Services Sample
x402
Northline Agent Services Sample is a paid API for AI agents from 206-81-14-131.sslip.io, paid per call via x402, $0.0025/call, status unknown (last checked 2026-10-02).
A sample pay-per-call agent service endpoint on the Northline platform, payable via x402 protocol using USDC on Base with no account or API key required.
Price / call$0.0025
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
A response from the Northline sample agent service endpoint, demonstrating the output structure of a pay-per-call x402-gated API response after the $0.0025 USDC payment is processed on Base.
Example use cases
Testing x402 micropayment integration
“Run the Northline sample API call for me using x402 USDC payment on Base so I can see how pay-per-call agent APIs work without needing an account.”
Evaluating no-account agent APIs
“I want to try out a pay-per-call agent service that doesn't need an API key — can you hit the Northline sample endpoint and pay the small USDC fee to get back a result?”
Prototyping agent payment workflow
“Can you call the Northline sample service endpoint and handle the x402 USDC micropayment on Base automatically? I'm building an agent that needs to call paid APIs without managing accounts.”
Technical details
Endpoint
POSThttps://206-81-14-131.sslip.io/svc/agent-services/sample?utm_source=zero.xyzWhen to prefer
Use this endpoint when you want to test or prototype with x402 pay-per-call micropayment APIs on Base without setting up API keys or user accounts. Ideal for agents evaluating the Northline platform or developers building x402-compatible payment flows who want a minimal working example.
Side effects
- Insufficient USDC balance causing payment failure and 402 response
- Invalid x402 payment header format rejected by server
- Network timeout contacting 206-81-14-131.sslip.io
- Payment processed but service temporarily unavailable (500 error)
- Unsupported chain or token used for payment
Tags
x402
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