{"uid":"cap_Or-K4V_aAWNQJ1CgJ1p1Y","slug":"mrr-ledger-watch-webhook-subscription-for-agentic-business-metrics-f1d41190","name":"MRR Ledger Watch — Webhook Subscription for Agentic Business Metrics","description":"Real agentic businesses that make money. Every number sourced.","url":"https://mrrledger.com/api/v1/watch?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"kinds":{"type":"array","items":{"enum":["metric_revised","metric_added","metric_removed","business_added","metric_redated"],"type":"string"}},"slugs":{"oneOf":[{"type":"array","items":{"type":"string"},"maxItems":10,"minItems":1},{"enum":["all"],"type":"string"}],"description":"Business slugs to watch (1-10; $1 each, never more than $5) or \"all\" ($5)"},"webhook_url":{"type":"string","format":"uri","description":"https URL on a public host, port 443"}}},"responseSchema":{"type":"json","example":{"slugs":["cursor"],"secret":"whsec_...","status":"active","watch_id":"w_0123456789abcdef0123","expires_at":"2026-01-01T00:00:00.000Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"5","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":"$5/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"5","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"5","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_R8lLaRquSaBYntMGPP9br","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"5","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Registers a webhook to receive real-time notifications when MRR Ledger metrics or business data changes for specified agentic businesses","exampleAgentPrompt":"Set up a webhook at https://myserver.com/hooks/mrr to watch Cursor and Replit on MRR Ledger for any metric_revised or metric_added events, so I get notified whenever their revenue numbers are updated.","exampleUseCases":[{"title":"Competitive revenue intelligence dashboard","prompt":"Subscribe my webhook at https://dashboard.acme.com/webhooks/mrr to watch Cursor, Perplexity, and Cognition on MRR Ledger for metric_revised and metric_added events — I want to update my competitive analysis dashboard the moment their numbers change."},{"title":"New agentic business discovery alert","prompt":"Set up a MRR Ledger watch on all businesses with my webhook https://alerts.myapp.com/new-agents, filtering for business_added events only, so I know every time a new agentic company gets listed."},{"title":"Automated investor portfolio monitoring","prompt":"Watch Replit and Devin on MRR Ledger for any metric_revised, metric_added, or metric_redated events and send changes to https://portfolio.vc/hooks/mrr — I need to track every revision to their MRR figures for my investment notes."}],"resultDescription":"Returns a watch object containing a unique watch_id, a webhook signing secret (whsec_...) for validating incoming payloads, the subscription status ('active'), the list of monitored business slugs, and an expiry timestamp indicating when the watch subscription ends.","failureModes":["Invalid or non-public webhook_url (must be https on port 443) returns validation error","Unknown business slug causes rejection or silent omission","Exceeding 10 slugs in array form returns error","Payment failure (insufficient USDC) prevents subscription creation","Expired watch_id requires re-subscription after expires_at","Webhook delivery failures on the receiving end are the caller's responsibility"],"whenToPreferThis":"Use this endpoint when you need real-time push notifications for metric changes rather than polling. Ideal when you want event-driven automation triggered by MRR Ledger data updates without repeatedly querying. Choose this over a polling approach when you need low-latency alerts and want to avoid unnecessary API calls. Best suited for agents building dashboards, competitive monitoring pipelines, or investment tracking workflows that react to sourced, verified revenue changes in agentic businesses.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:33:35.317Z","isFirstParty":false,"canonicalSlug":"mrr-ledger-watch-webhook-subscription-for-agentic-business-metrics-f1d41190"}