{"uid":"cap_VbX8HDuuNtm2nB7nXvXff","slug":"ai-agent-city-billing-x402-payment-endpoint-4627edf2","name":"AI Agent City Billing – x402 Payment Endpoint","description":"AI Agent City is a toolbelt for running AI agents in production: AgentLedger, Perimeter Watch, Cited, Agent Watch and TrustScan.","url":"https://aiagentscity.com/v1/billing/x402?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["method"]},"output":{"type":"object"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_m2NeTxweXl3NlYcuas3_X","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Processes a micropayment via the x402 protocol to authorize access to AI Agent City's suite of agent production tools.","exampleAgentPrompt":"Process a 0.01 USDC x402 payment to unlock access to AI Agent City's agent production tools like AgentLedger and TrustScan.","exampleUseCases":[{"title":"Paying for AgentLedger access","prompt":"I want to use AgentLedger to track my AI agents — go ahead and pay the 0.01 USDC x402 fee to AI Agent City to get me authorized."},{"title":"Unlocking TrustScan for security review","prompt":"Run the x402 payment for AI Agent City so I can access TrustScan and do a trust check on one of my production agents."},{"title":"Authorizing Perimeter Watch monitoring","prompt":"Pay the AI Agent City billing endpoint with 0.01 USDC via x402 so we can activate Perimeter Watch for our agent fleet."}],"resultDescription":"A payment confirmation or authorization response indicating whether the 0.01 USDC x402 micropayment was successfully processed, along with any access credentials or receipt data needed to use the requested AI Agent City tool.","failureModes":["Insufficient USDC balance causes payment rejection","Invalid or malformed x402 payment header returns 402 error","Wallet not authorized to pay returns authentication failure","Network or provider downtime causes timeout","Duplicate payment attempt may be rejected as replay"],"whenToPreferThis":"Choose this endpoint when you need to programmatically pay for access to AI Agent City's suite of agent production tools (AgentLedger, Perimeter Watch, Cited, Agent Watch, TrustScan) using the x402 micropayment protocol with USDC. It is the gateway billing step required before calling any downstream AI Agent City capability.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T00:34:22.446Z","isFirstParty":false,"canonicalSlug":"ai-agent-city-billing-x402-payment-endpoint-4627edf2"}