{"uid":"cap_pzLnM7mYMkzxxHdxwSyA6","slug":"fixledger-pulse-check-025b1718","name":"FixLedger Pulse Check","description":"Machine-payable MCP and x402 registry of Docker-verified bug fixes and post-cutoff SDK deltas. Free <50ms Peek-Before-Pay check; $0.005 Pay-on-Proof unlock on Base USDC.","url":"https://fixledger-iota.vercel.app/api/x402/pulse?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","description":"Target domain (e.g. 'api.openai.com', 'mainnet.base.org', 'api.stripe.com')."}}},"responseSchema":{"input":{"type":"http","method":"GET","queryParams":{"domain":{"type":"string","examples":["api.openai.com","api.anthropic.com","api.stripe.com","mainnet.base.org","x402.org"],"required":true,"description":"Target upstream API, LLM, RPC, or x402 facilitator hostname. Confirmed active outages return $0.00 free emergency alerts."}},"discoverable":true},"output":{"type":"object","required":["status","domain","provider","verdict","agent_directive","checked_at"],"properties":{"domain":{"type":"string"},"status":{"enum":["VERIFIED_PULSE","OUTAGE_ALERT_FREE"],"type":"string"},"verdict":{"type":"string"},"provider":{"type":"string"},"checked_at":{"type":"string"},"agent_directive":{"type":"string"},"recent_5m_error_reports":{"type":"number"}}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_nWymWEft2fEluI6hNKS-l","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks the real-time operational status of a target API, LLM, RPC, or x402 facilitator domain, returning a verified pulse verdict or free outage alert.","exampleAgentPrompt":"Before we proceed, do a pulse check on api.openai.com to see if it's currently operational or experiencing any outages.","exampleUseCases":[{"title":"Pre-call health check for LLM provider","prompt":"Before sending my batch of requests to Anthropic, can you verify that api.anthropic.com is currently up and not showing any recent error reports?"},{"title":"Diagnose failing Web3 RPC calls","prompt":"My app keeps failing when hitting mainnet.base.org — can you do a real-time pulse check on that domain to see if there's an active outage or recent error spike?"},{"title":"Agent pipeline dependency check","prompt":"Check whether api.stripe.com is healthy right now before my agent tries to process any payments — I need a verified status verdict, not just a ping."}],"resultDescription":"Returns a JSON object with a status field (VERIFIED_PULSE or OUTAGE_ALERT_FREE), the queried domain, the provider name, a human-readable verdict, an agent_directive with recommended next action, a checked_at timestamp, and optionally a count of recent 5-minute error reports. Confirmed outages are returned free of charge.","failureModes":["Unknown or unrecognized domain returns an error or no verdict","Network timeout if the target domain is completely unreachable","Payment required if the $0.002 USDC x402 flow is not completed (non-outage responses may be paywalled)","Stale data if the last verification run is older than expected freshness window"],"whenToPreferThis":"Choose this endpoint when an AI agent needs a fast, machine-payable, verified real-time status check on a specific API hostname before making downstream calls — especially for LLM providers, Base RPC nodes, Stripe, or x402 facilitators. Prefer it over generic uptime checkers when you need a structured agent_directive output and x402-compatible payment flow, or when you want free emergency outage alerts without upfront cost.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-01T06:30:27.355Z","isFirstParty":false,"canonicalSlug":"fixledger-pulse-check-025b1718"}