{"uid":"cap_VaxiJFEgaJ1_55MK1PK-c","slug":"northline-agent-services-sample-80d7516f","name":"Northline Agent Services Sample","description":"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","url":"https://206-81-14-131.sslip.io/svc/agent-services/sample?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0025","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.0025/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0025","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0025","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_c8QERDKLe-wkNaTETt8KD","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0025","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"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.","exampleAgentPrompt":"Call the Northline sample agent service endpoint and pay the $0.0025 USDC fee via x402 on Base — I want to see what the response looks like without setting up any API keys or accounts.","exampleUseCases":[{"title":"Testing x402 micropayment integration","prompt":"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."},{"title":"Evaluating no-account agent APIs","prompt":"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?"},{"title":"Prototyping agent payment workflow","prompt":"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."}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T04:04:31.487Z","isFirstParty":false,"canonicalSlug":"northline-agent-services-sample-80d7516f"}